Refactor: reduce code duplication with shared abstractions

- Add BaseClient HTTP abstraction (internal/api/http.go) to eliminate
  duplicated HTTP boilerplate across Todoist, Trello, and PlanToEat clients
- Add response helpers (internal/handlers/response.go) for JSON/HTML responses
- Add generic cache wrapper (internal/handlers/cache.go) using Go generics
- Consolidate HandleCompleteAtom/HandleUncompleteAtom into handleAtomToggle
- Merge TabsHandler into Handler, delete tabs.go
- Extract sortTasksByUrgency and filterAndSortTrelloTasks helpers
- Update tests to work with new BaseClient structure

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

13 files changed, 1212 insertions, 1435 deletions

diff --git a/internal/api/http.go b/internal/api/http.go
new file mode 100644
index 0000000..8854625
--- /dev/null
+++ b/internal/api/http.go
@@ -0,0 +1,143 @@
+package api
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+)
+
+// BaseClient provides common HTTP functionality for API clients
+type BaseClient struct {
+	HTTPClient *http.Client
+	BaseURL    string
+}
+
+// NewBaseClient creates a new BaseClient with default settings
+func NewBaseClient(baseURL string) BaseClient {
+	return BaseClient{
+		HTTPClient: &http.Client{Timeout: 15 * time.Second},
+		BaseURL:    baseURL,
+	}
+}
+
+// Get performs a GET request and decodes the JSON response
+func (c *BaseClient) Get(ctx context.Context, path string, headers map[string]string, result interface{}) error {
+	req, err := http.NewRequestWithContext(ctx, "GET", c.BaseURL+path, nil)
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+
+	for k, v := range headers {
+		req.Header.Set(k, v)
+	}
+
+	return c.doJSON(req, result)
+}
+
+// Post performs a POST request with JSON body and decodes the response
+func (c *BaseClient) Post(ctx context.Context, path string, headers map[string]string, body interface{}, result interface{}) error {
+	var bodyReader io.Reader
+	if body != nil {
+		jsonData, err := json.Marshal(body)
+		if err != nil {
+			return fmt.Errorf("failed to marshal request body: %w", err)
+		}
+		bodyReader = bytes.NewBuffer(jsonData)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "POST", c.BaseURL+path, bodyReader)
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+
+	if body != nil {
+		req.Header.Set("Content-Type", "application/json")
+	}
+
+	for k, v := range headers {
+		req.Header.Set(k, v)
+	}
+
+	return c.doJSON(req, result)
+}
+
+// PostForm performs a POST request with form-encoded body
+func (c *BaseClient) PostForm(ctx context.Context, path string, headers map[string]string, formData string, result interface{}) error {
+	req, err := http.NewRequestWithContext(ctx, "POST", c.BaseURL+path, bytes.NewBufferString(formData))
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	for k, v := range headers {
+		req.Header.Set(k, v)
+	}
+
+	return c.doJSON(req, result)
+}
+
+// PostEmpty performs a POST request with no body and expects no response body
+func (c *BaseClient) PostEmpty(ctx context.Context, path string, headers map[string]string) error {
+	req, err := http.NewRequestWithContext(ctx, "POST", c.BaseURL+path, nil)
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+
+	for k, v := range headers {
+		req.Header.Set(k, v)
+	}
+
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		body, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("API error (status %d): %s", resp.StatusCode, string(body))
+	}
+
+	return nil
+}
+
+// Put performs a PUT request with form-encoded body
+func (c *BaseClient) Put(ctx context.Context, path string, headers map[string]string, formData string, result interface{}) error {
+	req, err := http.NewRequestWithContext(ctx, "PUT", c.BaseURL+path, bytes.NewBufferString(formData))
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	for k, v := range headers {
+		req.Header.Set(k, v)
+	}
+
+	return c.doJSON(req, result)
+}
+
+// doJSON executes the request and decodes JSON response
+func (c *BaseClient) doJSON(req *http.Request, result interface{}) error {
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		body, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("API error (status %d): %s", resp.StatusCode, string(body))
+	}
+
+	if result != nil {
+		if err := json.NewDecoder(resp.Body).Decode(result); err != nil {
+			return fmt.Errorf("failed to decode response: %w", err)
+		}
+	}
+
+	return nil
+}
diff --git a/internal/api/plantoeat.go b/internal/api/plantoeat.go
index 1dae246..eb29c63 100644
--- a/internal/api/plantoeat.go
+++ b/internal/api/plantoeat.go
@@ -2,35 +2,32 @@ package api
 
 import (
 	"context"
-	"encoding/json"
 	"fmt"
-	"io"
-	"net/http"
 	"time"
 
 	"task-dashboard/internal/models"
 )
 
-const (
-	planToEatBaseURL = "https://www.plantoeat.com/api/v2"
-)
+const planToEatBaseURL = "https://www.plantoeat.com/api/v2"
 
 // PlanToEatClient handles interactions with the PlanToEat API
 type PlanToEatClient struct {
-	apiKey     string
-	httpClient *http.Client
+	BaseClient
+	apiKey string
 }
 
 // NewPlanToEatClient creates a new PlanToEat API client
 func NewPlanToEatClient(apiKey string) *PlanToEatClient {
 	return &PlanToEatClient{
-		apiKey: apiKey,
-		httpClient: &http.Client{
-			Timeout: 15 * time.Second,
-		},
+		BaseClient: NewBaseClient(planToEatBaseURL),
+		apiKey:     apiKey,
 	}
 }
 
+func (c *PlanToEatClient) authHeaders() map[string]string {
+	return map[string]string{"Authorization": "Bearer " + c.apiKey}
+}
+
 // planToEatPlannerItem represents a planner item from the API
 type planToEatPlannerItem struct {
 	ID       int    `json:"id"`
@@ -51,59 +48,35 @@ type planToEatResponse struct {
 // GetUpcomingMeals fetches meals for the next N days
 func (c *PlanToEatClient) GetUpcomingMeals(ctx context.Context, days int) ([]models.Meal, error) {
 	if days <= 0 {
-		days = 7 // Default to 7 days
+		days = 7
 	}
 
 	startDate := time.Now()
 	endDate := startDate.AddDate(0, 0, days)
 
-	req, err := http.NewRequestWithContext(ctx, "GET", planToEatBaseURL+"/planner_items", nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	// Add query parameters
-	q := req.URL.Query()
-	q.Add("start_date", startDate.Format("2006-01-02"))
-	q.Add("end_date", endDate.Format("2006-01-02"))
-	req.URL.RawQuery = q.Encode()
-
-	// Add API key (check docs for correct header name)
-	req.Header.Set("Authorization", "Bearer "+c.apiKey)
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to fetch meals: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("plantoeat API error (status %d): %s", resp.StatusCode, string(body))
-	}
+	path := fmt.Sprintf("/planner_items?start_date=%s&end_date=%s",
+		startDate.Format("2006-01-02"),
+		endDate.Format("2006-01-02"))
 
 	var apiResponse planToEatResponse
-	if err := json.NewDecoder(resp.Body).Decode(&apiResponse); err != nil {
-		return nil, fmt.Errorf("failed to decode response: %w", err)
+	if err := c.Get(ctx, path, c.authHeaders(), &apiResponse); err != nil {
+		return nil, fmt.Errorf("failed to fetch meals: %w", err)
 	}
 
-	// Convert to our model
 	meals := make([]models.Meal, 0, len(apiResponse.Items))
 	for _, item := range apiResponse.Items {
 		mealDate, err := time.Parse("2006-01-02", item.Date)
 		if err != nil {
-			continue // Skip invalid dates
+			continue
 		}
 
-		meal := models.Meal{
+		meals = append(meals, models.Meal{
 			ID:         fmt.Sprintf("%d", item.ID),
 			RecipeName: item.Recipe.Title,
 			Date:       mealDate,
 			MealType:   normalizeMealType(item.MealType),
 			RecipeURL:  item.Recipe.URL,
-		}
-
-		meals = append(meals, meal)
+		})
 	}
 
 	return meals, nil
@@ -121,18 +94,16 @@ func normalizeMealType(mealType string) string {
 	case "snack", "Snack":
 		return "snack"
 	default:
-		return "dinner" // Default to dinner
+		return "dinner"
 	}
 }
 
 // GetRecipes fetches recipes (for Phase 2)
 func (c *PlanToEatClient) GetRecipes(ctx context.Context) error {
-	// This will be implemented in Phase 2
 	return fmt.Errorf("not implemented yet")
 }
 
 // AddMealToPlanner adds a meal to the planner (for Phase 2)
 func (c *PlanToEatClient) AddMealToPlanner(ctx context.Context, recipeID string, date time.Time, mealType string) error {
-	// This will be implemented in Phase 2
 	return fmt.Errorf("not implemented yet")
 }
diff --git a/internal/api/todoist.go b/internal/api/todoist.go
index b3d4579..6c998cf 100644
--- a/internal/api/todoist.go
+++ b/internal/api/todoist.go
@@ -1,12 +1,8 @@
 package api
 
 import (
-	"bytes"
 	"context"
-	"encoding/json"
 	"fmt"
-	"io"
-	"net/http"
 	"time"
 
 	"task-dashboard/internal/models"
@@ -19,22 +15,24 @@ const (
 
 // TodoistClient handles interactions with the Todoist API
 type TodoistClient struct {
+	BaseClient
+	syncClient BaseClient
 	apiKey     string
-	baseURL    string
-	httpClient *http.Client
 }
 
 // NewTodoistClient creates a new Todoist API client
 func NewTodoistClient(apiKey string) *TodoistClient {
 	return &TodoistClient{
-		apiKey:  apiKey,
-		baseURL: todoistBaseURL,
-		httpClient: &http.Client{
-			Timeout: 15 * time.Second,
-		},
+		BaseClient: NewBaseClient(todoistBaseURL),
+		syncClient: NewBaseClient(todoistSyncBaseURL),
+		apiKey:     apiKey,
 	}
 }
 
+func (c *TodoistClient) authHeaders() map[string]string {
+	return map[string]string{"Authorization": "Bearer " + c.apiKey}
+}
+
 // todoistTaskResponse represents the API response structure
 type todoistTaskResponse struct {
 	ID          string   `json:"id"`
@@ -93,34 +91,15 @@ type SyncProjectResponse struct {
 
 // GetTasks fetches all active tasks from Todoist
 func (c *TodoistClient) GetTasks(ctx context.Context) ([]models.Task, error) {
-	req, err := http.NewRequestWithContext(ctx, "GET", c.baseURL+"/tasks", nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	req.Header.Set("Authorization", "Bearer "+c.apiKey)
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to fetch tasks: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("todoist API error (status %d): %s", resp.StatusCode, string(body))
-	}
-
 	var apiTasks []todoistTaskResponse
-	if err := json.NewDecoder(resp.Body).Decode(&apiTasks); err != nil {
-		return nil, fmt.Errorf("failed to decode response: %w", err)
+	if err := c.Get(ctx, "/tasks", c.authHeaders(), &apiTasks); err != nil {
+		return nil, fmt.Errorf("failed to fetch tasks: %w", err)
 	}
 
 	// Fetch projects to get project names
 	projects, err := c.GetProjects(ctx)
 	projectMap := make(map[string]string)
 	if err == nil {
-		// Build map of project ID to name
 		for _, proj := range projects {
 			projectMap[proj.ID] = proj.Name
 		}
@@ -141,24 +120,11 @@ func (c *TodoistClient) GetTasks(ctx context.Context) ([]models.Task, error) {
 			URL:         apiTask.URL,
 		}
 
-		// Parse created_at
 		if createdAt, err := time.Parse(time.RFC3339, apiTask.CreatedAt); err == nil {
 			task.CreatedAt = createdAt
 		}
 
-		// Parse due date
-		if apiTask.Due != nil {
-			var dueDate time.Time
-			if apiTask.Due.Datetime != "" {
-				dueDate, err = time.Parse(time.RFC3339, apiTask.Due.Datetime)
-			} else if apiTask.Due.Date != "" {
-				dueDate, err = time.Parse("2006-01-02", apiTask.Due.Date)
-			}
-			if err == nil {
-				task.DueDate = &dueDate
-			}
-		}
-
+		task.DueDate = parseDueDate(apiTask.Due)
 		tasks = append(tasks, task)
 	}
 
@@ -167,30 +133,11 @@ func (c *TodoistClient) GetTasks(ctx context.Context) ([]models.Task, error) {
 
 // GetProjects fetches all projects
 func (c *TodoistClient) GetProjects(ctx context.Context) ([]models.Project, error) {
-	req, err := http.NewRequestWithContext(ctx, "GET", c.baseURL+"/projects", nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	req.Header.Set("Authorization", "Bearer "+c.apiKey)
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to fetch projects: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("todoist API error (status %d): %s", resp.StatusCode, string(body))
-	}
-
 	var apiProjects []todoistProjectResponse
-	if err := json.NewDecoder(resp.Body).Decode(&apiProjects); err != nil {
-		return nil, fmt.Errorf("failed to decode response: %w", err)
+	if err := c.Get(ctx, "/projects", c.authHeaders(), &apiProjects); err != nil {
+		return nil, fmt.Errorf("failed to fetch projects: %w", err)
 	}
 
-	// Convert to model
 	projects := make([]models.Project, 0, len(apiProjects))
 	for _, apiProj := range apiProjects {
 		projects = append(projects, models.Project{
@@ -203,46 +150,19 @@ func (c *TodoistClient) GetProjects(ctx context.Context) ([]models.Project, erro
 }
 
 // Sync performs an incremental sync using the Sync API v9
-// If syncToken is empty or "*", a full sync is performed
-// Returns the new sync token and the sync response
 func (c *TodoistClient) Sync(ctx context.Context, syncToken string) (*TodoistSyncResponse, error) {
 	if syncToken == "" {
 		syncToken = "*" // Full sync
 	}
 
-	// Prepare sync request
 	payload := map[string]interface{}{
 		"sync_token":     syncToken,
 		"resource_types": []string{"items", "projects"},
 	}
 
-	jsonData, err := json.Marshal(payload)
-	if err != nil {
-		return nil, fmt.Errorf("failed to marshal sync request: %w", err)
-	}
-
-	req, err := http.NewRequestWithContext(ctx, "POST", todoistSyncBaseURL+"/sync", bytes.NewBuffer(jsonData))
-	if err != nil {
-		return nil, fmt.Errorf("failed to create sync request: %w", err)
-	}
-
-	req.Header.Set("Authorization", "Bearer "+c.apiKey)
-	req.Header.Set("Content-Type", "application/json")
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to perform sync: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("todoist sync API error (status %d): %s", resp.StatusCode, string(body))
-	}
-
 	var syncResp TodoistSyncResponse
-	if err := json.NewDecoder(resp.Body).Decode(&syncResp); err != nil {
-		return nil, fmt.Errorf("failed to decode sync response: %w", err)
+	if err := c.syncClient.Post(ctx, "/sync", c.authHeaders(), payload, &syncResp); err != nil {
+		return nil, fmt.Errorf("failed to perform sync: %w", err)
 	}
 
 	return &syncResp, nil
@@ -252,7 +172,6 @@ func (c *TodoistClient) Sync(ctx context.Context, syncToken string) (*TodoistSyn
 func ConvertSyncItemsToTasks(items []SyncItemResponse, projectMap map[string]string) []models.Task {
 	tasks := make([]models.Task, 0, len(items))
 	for _, item := range items {
-		// Skip completed or deleted items
 		if item.IsCompleted || item.IsDeleted {
 			continue
 		}
@@ -269,27 +188,13 @@ func ConvertSyncItemsToTasks(items []SyncItemResponse, projectMap map[string]str
 			URL:         fmt.Sprintf("https://todoist.com/app/task/%s", item.ID),
 		}
 
-		// Parse added_at
 		if item.AddedAt != "" {
 			if createdAt, err := time.Parse(time.RFC3339, item.AddedAt); err == nil {
 				task.CreatedAt = createdAt
 			}
 		}
 
-		// Parse due date
-		if item.Due != nil {
-			var dueDate time.Time
-			var err error
-			if item.Due.Datetime != "" {
-				dueDate, err = time.Parse(time.RFC3339, item.Due.Datetime)
-			} else if item.Due.Date != "" {
-				dueDate, err = time.Parse("2006-01-02", item.Due.Date)
-			}
-			if err == nil {
-				task.DueDate = &dueDate
-			}
-		}
-
+		task.DueDate = parseDueDate(item.Due)
 		tasks = append(tasks, task)
 	}
 	return tasks
@@ -308,55 +213,22 @@ func BuildProjectMapFromSync(projects []SyncProjectResponse) map[string]string {
 
 // CreateTask creates a new task in Todoist
 func (c *TodoistClient) CreateTask(ctx context.Context, content, projectID string, dueDate *time.Time, priority int) (*models.Task, error) {
-	// Prepare request payload
-	payload := map[string]interface{}{
-		"content": content,
-	}
-
+	payload := map[string]interface{}{"content": content}
 	if projectID != "" {
 		payload["project_id"] = projectID
 	}
-
 	if dueDate != nil {
 		payload["due_date"] = dueDate.Format("2006-01-02")
 	}
-
 	if priority > 0 {
 		payload["priority"] = priority
 	}
 
-	jsonData, err := json.Marshal(payload)
-	if err != nil {
-		return nil, fmt.Errorf("failed to marshal request: %w", err)
-	}
-
-	// Create POST request
-	req, err := http.NewRequestWithContext(ctx, "POST", c.baseURL+"/tasks", bytes.NewBuffer(jsonData))
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-	req.Header.Set("Authorization", "Bearer "+c.apiKey)
-	req.Header.Set("Content-Type", "application/json")
-
-	// Execute request
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create task: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("todoist API error (status %d): %s", resp.StatusCode, string(body))
-	}
-
-	// Decode response
 	var apiTask todoistTaskResponse
-	if err := json.NewDecoder(resp.Body).Decode(&apiTask); err != nil {
-		return nil, fmt.Errorf("failed to decode response: %w", err)
+	if err := c.Post(ctx, "/tasks", c.authHeaders(), payload, &apiTask); err != nil {
+		return nil, fmt.Errorf("failed to create task: %w", err)
 	}
 
-	// Convert to our model
 	task := &models.Task{
 		ID:          apiTask.ID,
 		Content:     apiTask.Content,
@@ -368,100 +240,58 @@ func (c *TodoistClient) CreateTask(ctx context.Context, content, projectID strin
 		URL:         apiTask.URL,
 	}
 
-	// Parse created_at
 	if createdAt, err := time.Parse(time.RFC3339, apiTask.CreatedAt); err == nil {
 		task.CreatedAt = createdAt
 	}
 
-	// Parse due date
-	if apiTask.Due != nil {
-		var taskDueDate time.Time
-		if apiTask.Due.Datetime != "" {
-			taskDueDate, err = time.Parse(time.RFC3339, apiTask.Due.Datetime)
-		} else if apiTask.Due.Date != "" {
-			taskDueDate, err = time.Parse("2006-01-02", apiTask.Due.Date)
-		}
-		if err == nil {
-			task.DueDate = &taskDueDate
-		}
-	}
-
+	task.DueDate = parseDueDate(apiTask.Due)
 	return task, nil
 }
 
 // UpdateTask updates a task with the specified changes
 func (c *TodoistClient) UpdateTask(ctx context.Context, taskID string, updates map[string]interface{}) error {
-	jsonData, err := json.Marshal(updates)
-	if err != nil {
-		return fmt.Errorf("failed to marshal updates: %w", err)
-	}
-
-	url := fmt.Sprintf("%s/tasks/%s", c.baseURL, taskID)
-	req, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewBuffer(jsonData))
-	if err != nil {
-		return fmt.Errorf("failed to create request: %w", err)
-	}
-	req.Header.Set("Authorization", "Bearer "+c.apiKey)
-	req.Header.Set("Content-Type", "application/json")
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
+	path := fmt.Sprintf("/tasks/%s", taskID)
+	if err := c.Post(ctx, path, c.authHeaders(), updates, nil); err != nil {
 		return fmt.Errorf("failed to update task: %w", err)
 	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
-		body, _ := io.ReadAll(resp.Body)
-		return fmt.Errorf("todoist API error (status %d): %s", resp.StatusCode, string(body))
-	}
-
 	return nil
 }
 
 // CompleteTask marks a task as complete in Todoist
 func (c *TodoistClient) CompleteTask(ctx context.Context, taskID string) error {
-	// Create POST request to close endpoint
-	url := fmt.Sprintf("%s/tasks/%s/close", c.baseURL, taskID)
-	req, err := http.NewRequestWithContext(ctx, "POST", url, nil)
-	if err != nil {
-		return fmt.Errorf("failed to create request: %w", err)
-	}
-	req.Header.Set("Authorization", "Bearer "+c.apiKey)
-
-	// Execute request
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
+	path := fmt.Sprintf("/tasks/%s/close", taskID)
+	if err := c.PostEmpty(ctx, path, c.authHeaders()); err != nil {
 		return fmt.Errorf("failed to complete task: %w", err)
 	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusNoContent && resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return fmt.Errorf("todoist API error (status %d): %s", resp.StatusCode, string(body))
-	}
-
 	return nil
 }
 
 // ReopenTask marks a completed task as active in Todoist
 func (c *TodoistClient) ReopenTask(ctx context.Context, taskID string) error {
-	url := fmt.Sprintf("%s/tasks/%s/reopen", c.baseURL, taskID)
-	req, err := http.NewRequestWithContext(ctx, "POST", url, nil)
-	if err != nil {
-		return fmt.Errorf("failed to create request: %w", err)
-	}
-	req.Header.Set("Authorization", "Bearer "+c.apiKey)
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
+	path := fmt.Sprintf("/tasks/%s/reopen", taskID)
+	if err := c.PostEmpty(ctx, path, c.authHeaders()); err != nil {
 		return fmt.Errorf("failed to reopen task: %w", err)
 	}
-	defer resp.Body.Close()
+	return nil
+}
 
-	if resp.StatusCode != http.StatusNoContent && resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return fmt.Errorf("todoist API error (status %d): %s", resp.StatusCode, string(body))
+// parseDueDate parses due date from API response
+func parseDueDate(due *struct {
+	Date     string `json:"date"`
+	Datetime string `json:"datetime"`
+}) *time.Time {
+	if due == nil {
+		return nil
+	}
+	var dueDate time.Time
+	var err error
+	if due.Datetime != "" {
+		dueDate, err = time.Parse(time.RFC3339, due.Datetime)
+	} else if due.Date != "" {
+		dueDate, err = time.Parse("2006-01-02", due.Date)
 	}
-
-	return nil
+	if err != nil {
+		return nil
+	}
+	return &dueDate
 }
diff --git a/internal/api/todoist_test.go b/internal/api/todoist_test.go
index 56b1484..88f94f8 100644
--- a/internal/api/todoist_test.go
+++ b/internal/api/todoist_test.go
@@ -10,6 +10,14 @@ import (
 	"time"
 )
 
+// newTestTodoistClient creates a TodoistClient for testing with custom base URL
+func newTestTodoistClient(baseURL, apiKey string) *TodoistClient {
+	client := NewTodoistClient(apiKey)
+	client.BaseClient.BaseURL = baseURL
+	client.syncClient.BaseURL = baseURL
+	return client
+}
+
 func TestTodoistClient_CreateTask(t *testing.T) {
 	// Mock server
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -59,11 +67,7 @@ func TestTodoistClient_CreateTask(t *testing.T) {
 	defer server.Close()
 
 	// Create client with mock server URL
-	client := &TodoistClient{
-		apiKey:     "test-key",
-		baseURL:    server.URL,
-		httpClient: &http.Client{},
-	}
+	client := newTestTodoistClient(server.URL, "test-key")
 
 	// Test CreateTask
 	ctx := context.Background()
@@ -122,11 +126,7 @@ func TestTodoistClient_CreateTask_WithDueDate(t *testing.T) {
 	defer server.Close()
 
 	// Create client
-	client := &TodoistClient{
-		apiKey:     "test-key",
-		baseURL:    server.URL,
-		httpClient: &http.Client{},
-	}
+	client := newTestTodoistClient(server.URL, "test-key")
 
 	// Test CreateTask with due date
 	ctx := context.Background()
@@ -170,11 +170,7 @@ func TestTodoistClient_CompleteTask(t *testing.T) {
 	defer server.Close()
 
 	// Create client
-	client := &TodoistClient{
-		apiKey:     "test-key",
-		baseURL:    server.URL,
-		httpClient: &http.Client{},
-	}
+	client := newTestTodoistClient(server.URL, "test-key")
 
 	// Test CompleteTask
 	ctx := context.Background()
@@ -194,11 +190,7 @@ func TestTodoistClient_CompleteTask_Error(t *testing.T) {
 	defer server.Close()
 
 	// Create client
-	client := &TodoistClient{
-		apiKey:     "test-key",
-		baseURL:    server.URL,
-		httpClient: &http.Client{},
-	}
+	client := newTestTodoistClient(server.URL, "test-key")
 
 	// Test CompleteTask with error
 	ctx := context.Background()
@@ -235,11 +227,7 @@ func TestTodoistClient_GetProjects(t *testing.T) {
 	defer server.Close()
 
 	// Create client
-	client := &TodoistClient{
-		apiKey:     "test-key",
-		baseURL:    server.URL,
-		httpClient: &http.Client{},
-	}
+	client := newTestTodoistClient(server.URL, "test-key")
 
 	// Test GetProjects
 	ctx := context.Background()
diff --git a/internal/api/trello.go b/internal/api/trello.go
index 4c4dc95..4cf7e9e 100644
--- a/internal/api/trello.go
+++ b/internal/api/trello.go
@@ -2,44 +2,41 @@ package api
 
 import (
 	"context"
-	"encoding/json"
 	"fmt"
-	"io"
 	"log"
-	"net/http"
 	"net/url"
 	"sort"
-	"strings"
 	"sync"
 	"time"
 
 	"task-dashboard/internal/models"
 )
 
-const (
-	trelloBaseURL = "https://api.trello.com/1"
-)
+const trelloBaseURL = "https://api.trello.com/1"
 
 // TrelloClient handles interactions with the Trello API
 type TrelloClient struct {
-	apiKey     string
-	token      string
-	baseURL    string
-	httpClient *http.Client
+	BaseClient
+	apiKey string
+	token  string
 }
 
 // NewTrelloClient creates a new Trello API client
 func NewTrelloClient(apiKey, token string) *TrelloClient {
 	return &TrelloClient{
-		apiKey:  apiKey,
-		token:   token,
-		baseURL: trelloBaseURL,
-		httpClient: &http.Client{
-			Timeout: 15 * time.Second,
-		},
+		BaseClient: NewBaseClient(trelloBaseURL),
+		apiKey:     apiKey,
+		token:      token,
 	}
 }
 
+func (c *TrelloClient) authParams() url.Values {
+	params := url.Values{}
+	params.Set("key", c.apiKey)
+	params.Set("token", c.token)
+	return params
+}
+
 // trelloBoardResponse represents a board from the API
 type trelloBoardResponse struct {
 	ID   string `json:"id"`
@@ -65,43 +62,22 @@ type trelloListResponse struct {
 
 // GetBoards fetches all boards for the authenticated user
 func (c *TrelloClient) GetBoards(ctx context.Context) ([]models.Board, error) {
-	params := url.Values{}
-	params.Set("key", c.apiKey)
-	params.Set("token", c.token)
+	params := c.authParams()
 	params.Set("filter", "open")
-	params.Set("fields", "id,name") // Only fetch required fields
-
-	reqURL := fmt.Sprintf("%s/members/me/boards?%s", c.baseURL, params.Encode())
-	req, err := http.NewRequestWithContext(ctx, "GET", reqURL, nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to fetch boards: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("trello API error (status %d): %s", resp.StatusCode, string(body))
-	}
+	params.Set("fields", "id,name")
 
 	var apiBoards []trelloBoardResponse
-	if err := json.NewDecoder(resp.Body).Decode(&apiBoards); err != nil {
-		return nil, fmt.Errorf("failed to decode response: %w", err)
+	if err := c.Get(ctx, "/members/me/boards?"+params.Encode(), nil, &apiBoards); err != nil {
+		return nil, fmt.Errorf("failed to fetch boards: %w", err)
 	}
 
-	// Convert to our model
 	boards := make([]models.Board, 0, len(apiBoards))
 	for _, apiBoard := range apiBoards {
-		board := models.Board{
+		boards = append(boards, models.Board{
 			ID:    apiBoard.ID,
 			Name:  apiBoard.Name,
-			Cards: []models.Card{}, // Will be populated by GetCards
-		}
-		boards = append(boards, board)
+			Cards: []models.Card{},
+		})
 	}
 
 	return boards, nil
@@ -109,32 +85,14 @@ func (c *TrelloClient) GetBoards(ctx context.Context) ([]models.Board, error) {
 
 // GetCards fetches all cards for a specific board
 func (c *TrelloClient) GetCards(ctx context.Context, boardID string) ([]models.Card, error) {
-	params := url.Values{}
-	params.Set("key", c.apiKey)
-	params.Set("token", c.token)
+	params := c.authParams()
 	params.Set("filter", "visible")
-	params.Set("fields", "id,name,idList,due,url,idBoard") // Only fetch required fields
-
-	reqURL := fmt.Sprintf("%s/boards/%s/cards?%s", c.baseURL, boardID, params.Encode())
-	req, err := http.NewRequestWithContext(ctx, "GET", reqURL, nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to fetch cards: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("trello API error (status %d): %s", resp.StatusCode, string(body))
-	}
+	params.Set("fields", "id,name,idList,due,url,idBoard")
 
 	var apiCards []trelloCardResponse
-	if err := json.NewDecoder(resp.Body).Decode(&apiCards); err != nil {
-		return nil, fmt.Errorf("failed to decode response: %w", err)
+	path := fmt.Sprintf("/boards/%s/cards?%s", boardID, params.Encode())
+	if err := c.Get(ctx, path, nil, &apiCards); err != nil {
+		return nil, fmt.Errorf("failed to fetch cards: %w", err)
 	}
 
 	log.Printf("Trello GetCards: board %s returned %d cards from API", boardID, len(apiCards))
@@ -143,15 +101,13 @@ func (c *TrelloClient) GetCards(ctx context.Context, boardID string) ([]models.C
 	lists, err := c.getLists(ctx, boardID)
 	listMap := make(map[string]string)
 	if err != nil {
-		log.Printf("Warning: failed to fetch lists for board %s, cards will have empty list names: %v", boardID, err)
+		log.Printf("Warning: failed to fetch lists for board %s: %v", boardID, err)
 	} else {
-		// Build map of list ID to name
 		for _, list := range lists {
 			listMap[list.ID] = list.Name
 		}
 	}
 
-	// Convert to our model
 	cards := make([]models.Card, 0, len(apiCards))
 	for _, apiCard := range apiCards {
 		card := models.Card{
@@ -162,10 +118,8 @@ func (c *TrelloClient) GetCards(ctx context.Context, boardID string) ([]models.C
 			URL:      apiCard.URL,
 		}
 
-		// Parse due date if present
 		if apiCard.Due != nil && *apiCard.Due != "" {
-			dueDate, err := time.Parse(time.RFC3339, *apiCard.Due)
-			if err == nil {
+			if dueDate, err := time.Parse(time.RFC3339, *apiCard.Due); err == nil {
 				card.DueDate = &dueDate
 			}
 		}
@@ -178,34 +132,15 @@ func (c *TrelloClient) GetCards(ctx context.Context, boardID string) ([]models.C
 
 // getLists fetches lists for a board
 func (c *TrelloClient) getLists(ctx context.Context, boardID string) ([]models.List, error) {
-	params := url.Values{}
-	params.Set("key", c.apiKey)
-	params.Set("token", c.token)
-	params.Set("fields", "id,name") // Only fetch required fields
-
-	reqURL := fmt.Sprintf("%s/boards/%s/lists?%s", c.baseURL, boardID, params.Encode())
-	req, err := http.NewRequestWithContext(ctx, "GET", reqURL, nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to fetch lists: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("trello API error (status %d): %s", resp.StatusCode, string(body))
-	}
+	params := c.authParams()
+	params.Set("fields", "id,name")
 
 	var apiLists []trelloListResponse
-	if err := json.NewDecoder(resp.Body).Decode(&apiLists); err != nil {
-		return nil, fmt.Errorf("failed to decode response: %w", err)
+	path := fmt.Sprintf("/boards/%s/lists?%s", boardID, params.Encode())
+	if err := c.Get(ctx, path, nil, &apiLists); err != nil {
+		return nil, fmt.Errorf("failed to fetch lists: %w", err)
 	}
 
-	// Convert to model
 	lists := make([]models.List, 0, len(apiLists))
 	for _, apiList := range apiLists {
 		lists = append(lists, models.List{
@@ -222,7 +157,7 @@ func (c *TrelloClient) GetLists(ctx context.Context, boardID string) ([]models.L
 	return c.getLists(ctx, boardID)
 }
 
-// GetBoardsWithCards fetches all boards and their cards in one call
+// GetBoardsWithCards fetches all boards and their cards concurrently
 func (c *TrelloClient) GetBoardsWithCards(ctx context.Context) ([]models.Board, error) {
 	boards, err := c.GetBoards(ctx)
 	if err != nil {
@@ -237,24 +172,19 @@ func (c *TrelloClient) GetBoardsWithCards(ctx context.Context) ([]models.Board,
 		go func(i int) {
 			defer wg.Done()
 
-			// Acquire semaphore
 			sem <- struct{}{}
 			defer func() { <-sem }()
 
-			// Fetch cards
 			cards, err := c.GetCards(ctx, boards[i].ID)
 			if err != nil {
 				log.Printf("Error fetching cards for board %s (%s): %v", boards[i].Name, boards[i].ID, err)
 			} else {
-				// Set BoardName for each card
 				for j := range cards {
 					cards[j].BoardName = boards[i].Name
 				}
-				// It is safe to write to specific indices of the slice concurrently
 				boards[i].Cards = cards
 			}
 
-			// Fetch lists
 			lists, err := c.getLists(ctx, boards[i].ID)
 			if err != nil {
 				log.Printf("Error fetching lists for board %s: %v", boards[i].Name, err)
@@ -266,18 +196,15 @@ func (c *TrelloClient) GetBoardsWithCards(ctx context.Context) ([]models.Board,
 
 	wg.Wait()
 
-	// Sort boards: Non-empty boards first, newest card activity, then alphabetical by name
-	// Trello card IDs are chronologically sortable (newer IDs > older IDs)
+	// Sort boards: Non-empty boards first, newest card activity, then alphabetical
 	sort.Slice(boards, func(i, j int) bool {
 		hasCardsI := len(boards[i].Cards) > 0
 		hasCardsJ := len(boards[j].Cards) > 0
 
-		// 1. Prioritize boards with cards
 		if hasCardsI != hasCardsJ {
-			return hasCardsI // true (non-empty) comes before false
+			return hasCardsI
 		}
 
-		// 2. If both have cards, compare by newest card (max ID)
 		if hasCardsI && hasCardsJ {
 			maxIDI := ""
 			for _, card := range boards[i].Cards {
@@ -294,11 +221,10 @@ func (c *TrelloClient) GetBoardsWithCards(ctx context.Context) ([]models.Board,
 			}
 
 			if maxIDI != maxIDJ {
-				return maxIDI > maxIDJ // Newer (larger) ID comes first
+				return maxIDI > maxIDJ
 			}
 		}
 
-		// 3. Fallback to alphabetical by name
 		return boards[i].Name < boards[j].Name
 	})
 
@@ -307,48 +233,21 @@ func (c *TrelloClient) GetBoardsWithCards(ctx context.Context) ([]models.Board,
 
 // CreateCard creates a new card in the specified list
 func (c *TrelloClient) CreateCard(ctx context.Context, listID, name, description string, dueDate *time.Time) (*models.Card, error) {
-	// Prepare request payload
-	data := url.Values{}
-	data.Set("key", c.apiKey)
-	data.Set("token", c.token)
+	data := c.authParams()
 	data.Set("idList", listID)
 	data.Set("name", name)
-
 	if description != "" {
 		data.Set("desc", description)
 	}
-
 	if dueDate != nil {
 		data.Set("due", dueDate.Format(time.RFC3339))
 	}
 
-	// Create POST request
-	reqURL := c.baseURL + "/cards"
-	req, err := http.NewRequestWithContext(ctx, "POST", reqURL, strings.NewReader(data.Encode()))
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-
-	// Execute request
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create card: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("trello API error (status %d): %s", resp.StatusCode, string(body))
-	}
-
-	// Decode response
 	var apiCard trelloCardResponse
-	if err := json.NewDecoder(resp.Body).Decode(&apiCard); err != nil {
-		return nil, fmt.Errorf("failed to decode response: %w", err)
+	if err := c.PostForm(ctx, "/cards", nil, data.Encode(), &apiCard); err != nil {
+		return nil, fmt.Errorf("failed to create card: %w", err)
 	}
 
-	// Convert to our model
 	card := &models.Card{
 		ID:     apiCard.ID,
 		Name:   apiCard.Name,
@@ -356,10 +255,8 @@ func (c *TrelloClient) CreateCard(ctx context.Context, listID, name, description
 		URL:    apiCard.URL,
 	}
 
-	// Parse due date if present
 	if apiCard.Due != nil && *apiCard.Due != "" {
-		parsedDate, err := time.Parse(time.RFC3339, *apiCard.Due)
-		if err == nil {
+		if parsedDate, err := time.Parse(time.RFC3339, *apiCard.Due); err == nil {
 			card.DueDate = &parsedDate
 		}
 	}
@@ -369,35 +266,15 @@ func (c *TrelloClient) CreateCard(ctx context.Context, listID, name, description
 
 // UpdateCard updates a card with the specified changes
 func (c *TrelloClient) UpdateCard(ctx context.Context, cardID string, updates map[string]interface{}) error {
-	// Prepare request payload
-	data := url.Values{}
-	data.Set("key", c.apiKey)
-	data.Set("token", c.token)
-
-	// Add updates to payload
+	data := c.authParams()
 	for key, value := range updates {
 		data.Set(key, fmt.Sprintf("%v", value))
 	}
 
-	// Create PUT request
-	reqURL := fmt.Sprintf("%s/cards/%s", c.baseURL, cardID)
-	req, err := http.NewRequestWithContext(ctx, "PUT", reqURL, strings.NewReader(data.Encode()))
-	if err != nil {
-		return fmt.Errorf("failed to create request: %w", err)
-	}
-	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-
-	// Execute request
-	resp, err := c.httpClient.Do(req)
-	if err != nil {
+	path := fmt.Sprintf("/cards/%s", cardID)
+	if err := c.Put(ctx, path, nil, data.Encode(), nil); err != nil {
 		return fmt.Errorf("failed to update card: %w", err)
 	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		body, _ := io.ReadAll(resp.Body)
-		return fmt.Errorf("trello API error (status %d): %s", resp.StatusCode, string(body))
-	}
 
 	return nil
 }
diff --git a/internal/api/trello_test.go b/internal/api/trello_test.go
index b43b55e..7433ff0 100644
--- a/internal/api/trello_test.go
+++ b/internal/api/trello_test.go
@@ -12,6 +12,13 @@ import (
 	"time"
 )
 
+// newTestTrelloClient creates a TrelloClient for testing with custom base URL
+func newTestTrelloClient(baseURL, apiKey, token string) *TrelloClient {
+	client := NewTrelloClient(apiKey, token)
+	client.BaseClient.BaseURL = baseURL
+	return client
+}
+
 func TestTrelloClient_CreateCard(t *testing.T) {
 	// Mock server
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -65,12 +72,7 @@ func TestTrelloClient_CreateCard(t *testing.T) {
 	defer server.Close()
 
 	// Create client with mock server URL
-	client := &TrelloClient{
-		apiKey:     "test-key",
-		token:      "test-token",
-		baseURL:    server.URL,
-		httpClient: &http.Client{},
-	}
+	client := newTestTrelloClient(server.URL, "test-key", "test-token")
 
 	// Test CreateCard
 	ctx := context.Background()
@@ -125,12 +127,7 @@ func TestTrelloClient_CreateCard_WithDueDate(t *testing.T) {
 	defer server.Close()
 
 	// Create client
-	client := &TrelloClient{
-		apiKey:     "test-key",
-		token:      "test-token",
-		baseURL:    server.URL,
-		httpClient: &http.Client{},
-	}
+	client := newTestTrelloClient(server.URL, "test-key", "test-token")
 
 	// Test CreateCard with due date
 	ctx := context.Background()
@@ -184,12 +181,7 @@ func TestTrelloClient_UpdateCard(t *testing.T) {
 	defer server.Close()
 
 	// Create client
-	client := &TrelloClient{
-		apiKey:     "test-key",
-		token:      "test-token",
-		baseURL:    server.URL,
-		httpClient: &http.Client{},
-	}
+	client := newTestTrelloClient(server.URL, "test-key", "test-token")
 
 	// Test UpdateCard
 	ctx := context.Background()
@@ -214,12 +206,7 @@ func TestTrelloClient_UpdateCard_Error(t *testing.T) {
 	defer server.Close()
 
 	// Create client
-	client := &TrelloClient{
-		apiKey:     "test-key",
-		token:      "test-token",
-		baseURL:    server.URL,
-		httpClient: &http.Client{},
-	}
+	client := newTestTrelloClient(server.URL, "test-key", "test-token")
 
 	// Test UpdateCard with error
 	ctx := context.Background()
diff --git a/internal/handlers/cache.go b/internal/handlers/cache.go
new file mode 100644
index 0000000..a2f534e
--- /dev/null
+++ b/internal/handlers/cache.go
@@ -0,0 +1,52 @@
+package handlers
+
+import (
+	"context"
+	"log"
+
+	"task-dashboard/internal/store"
+)
+
+// CacheFetcher defines the interface for fetching and caching data
+type CacheFetcher[T any] struct {
+	Store        *store.Store
+	CacheKey     string
+	TTLMinutes   int
+	Fetch        func(ctx context.Context) ([]T, error)
+	GetFromCache func() ([]T, error)
+	SaveToCache  func([]T) error
+}
+
+// FetchWithCache fetches data from cache or API with fallback
+func (cf *CacheFetcher[T]) FetchWithCache(ctx context.Context, forceRefresh bool) ([]T, error) {
+	// Check cache validity
+	if !forceRefresh {
+		valid, err := cf.Store.IsCacheValid(cf.CacheKey)
+		if err == nil && valid {
+			return cf.GetFromCache()
+		}
+	}
+
+	// Fetch from API
+	data, err := cf.Fetch(ctx)
+	if err != nil {
+		// Try to return cached data even if stale
+		cachedData, cacheErr := cf.GetFromCache()
+		if cacheErr == nil && len(cachedData) > 0 {
+			return cachedData, nil
+		}
+		return nil, err
+	}
+
+	// Save to cache
+	if err := cf.SaveToCache(data); err != nil {
+		log.Printf("Failed to save to cache (%s): %v", cf.CacheKey, err)
+	}
+
+	// Update cache metadata
+	if err := cf.Store.UpdateCacheMetadata(cf.CacheKey, cf.TTLMinutes); err != nil {
+		log.Printf("Failed to update cache metadata (%s): %v", cf.CacheKey, err)
+	}
+
+	return data, nil
+}
diff --git a/internal/handlers/handlers.go b/internal/handlers/handlers.go
index c364188..126eef1 100644
--- a/internal/handlers/handlers.go
+++ b/internal/handlers/handlers.go
@@ -2,7 +2,6 @@ package handlers
 
 import (
 	"context"
-	"encoding/json"
 	"fmt"
 	"html/template"
 	"log"
@@ -105,30 +104,22 @@ func (h *Handler) HandleDashboard(w http.ResponseWriter, r *http.Request) {
 
 // HandleRefresh forces a refresh of all data
 func (h *Handler) HandleRefresh(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-
-	// Force refresh by passing true
-	data, err := h.aggregateData(ctx, true)
+	data, err := h.aggregateData(r.Context(), true)
 	if err != nil {
-		http.Error(w, "Failed to refresh data", http.StatusInternalServerError)
-		log.Printf("Error refreshing data: %v", err)
+		JSONError(w, http.StatusInternalServerError, "Failed to refresh data", err)
 		return
 	}
-
-	w.Header().Set("Content-Type", "application/json")
-	json.NewEncoder(w).Encode(data)
+	JSONResponse(w, data)
 }
 
 // HandleGetTasks returns tasks as JSON
 func (h *Handler) HandleGetTasks(w http.ResponseWriter, r *http.Request) {
 	tasks, err := h.store.GetTasks()
 	if err != nil {
-		http.Error(w, "Failed to get tasks", http.StatusInternalServerError)
+		JSONError(w, http.StatusInternalServerError, "Failed to get tasks", err)
 		return
 	}
-
-	w.Header().Set("Content-Type", "application/json")
-	json.NewEncoder(w).Encode(tasks)
+	JSONResponse(w, tasks)
 }
 
 // HandleGetMeals returns meals as JSON
@@ -138,62 +129,43 @@ func (h *Handler) HandleGetMeals(w http.ResponseWriter, r *http.Request) {
 
 	meals, err := h.store.GetMeals(startDate, endDate)
 	if err != nil {
-		http.Error(w, "Failed to get meals", http.StatusInternalServerError)
+		JSONError(w, http.StatusInternalServerError, "Failed to get meals", err)
 		return
 	}
-
-	w.Header().Set("Content-Type", "application/json")
-	json.NewEncoder(w).Encode(meals)
+	JSONResponse(w, meals)
 }
 
 // HandleGetBoards returns Trello boards with cards as JSON
 func (h *Handler) HandleGetBoards(w http.ResponseWriter, r *http.Request) {
 	boards, err := h.store.GetBoards()
 	if err != nil {
-		http.Error(w, "Failed to get boards", http.StatusInternalServerError)
+		JSONError(w, http.StatusInternalServerError, "Failed to get boards", err)
 		return
 	}
-
-	w.Header().Set("Content-Type", "application/json")
-	json.NewEncoder(w).Encode(boards)
+	JSONResponse(w, boards)
 }
 
 // HandleTasksTab renders the tasks tab content (Trello + Todoist + PlanToEat)
 func (h *Handler) HandleTasksTab(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-
-	data, err := h.aggregateData(ctx, false)
+	data, err := h.aggregateData(r.Context(), false)
 	if err != nil {
-		http.Error(w, "Failed to load tasks", http.StatusInternalServerError)
-		log.Printf("Error loading tasks tab: %v", err)
+		JSONError(w, http.StatusInternalServerError, "Failed to load tasks", err)
 		return
 	}
-
-	if err := h.templates.ExecuteTemplate(w, "tasks-tab", data); err != nil {
-		http.Error(w, "Failed to render template", http.StatusInternalServerError)
-		log.Printf("Error rendering tasks tab: %v", err)
-	}
+	HTMLResponse(w, h.templates, "tasks-tab", data)
 }
 
 // HandleRefreshTab refreshes and re-renders the specified tab
 func (h *Handler) HandleRefreshTab(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-
-	// Force refresh
-	data, err := h.aggregateData(ctx, true)
+	data, err := h.aggregateData(r.Context(), true)
 	if err != nil {
-		http.Error(w, "Failed to refresh", http.StatusInternalServerError)
-		log.Printf("Error refreshing tab: %v", err)
+		JSONError(w, http.StatusInternalServerError, "Failed to refresh", err)
 		return
 	}
-
-	if err := h.templates.ExecuteTemplate(w, "tasks-tab", data); err != nil {
-		http.Error(w, "Failed to render template", http.StatusInternalServerError)
-		log.Printf("Error rendering refreshed tab: %v", err)
-	}
+	HTMLResponse(w, h.templates, "tasks-tab", data)
 }
 
-// aggregateData fetches and caches data from all sources
+// aggregateData fetches and caches data from all sources concurrently
 func (h *Handler) aggregateData(ctx context.Context, forceRefresh bool) (*models.DashboardData, error) {
 	data := &models.DashboardData{
 		LastUpdated: time.Now(),
@@ -203,169 +175,132 @@ func (h *Handler) aggregateData(ctx context.Context, forceRefresh bool) (*models
 	var wg sync.WaitGroup
 	var mu sync.Mutex
 
-	// Fetch Trello boards (PRIORITY - most important)
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
-		select {
-		case <-ctx.Done():
-			return
-		default:
-		}
+	// Helper to run fetch in goroutine with error collection
+	fetch := func(name string, fn func() error) {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			select {
+			case <-ctx.Done():
+				return
+			default:
+			}
+			if err := fn(); err != nil {
+				mu.Lock()
+				data.Errors = append(data.Errors, name+": "+err.Error())
+				mu.Unlock()
+			}
+		}()
+	}
+
+	fetch("Trello", func() error {
 		boards, err := h.fetchBoards(ctx, forceRefresh)
-		mu.Lock()
-		defer mu.Unlock()
-		if err != nil {
-			data.Errors = append(data.Errors, "Trello: "+err.Error())
-		} else {
+		if err == nil {
+			mu.Lock()
 			data.Boards = boards
+			mu.Unlock()
 		}
-	}()
-
-	// Fetch Todoist tasks
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
-		select {
-		case <-ctx.Done():
-			return
-		default:
-		}
-		tasks, err := h.fetchTasks(ctx, forceRefresh)
-		mu.Lock()
-		defer mu.Unlock()
-		if err != nil {
-			data.Errors = append(data.Errors, "Todoist: "+err.Error())
-		} else {
-			// Sort tasks: earliest due date first, nil last, then by priority (descending)
-			sort.Slice(tasks, func(i, j int) bool {
-				// Handle nil due dates (push to end)
-				if tasks[i].DueDate == nil && tasks[j].DueDate != nil {
-					return false
-				}
-				if tasks[i].DueDate != nil && tasks[j].DueDate == nil {
-					return true
-				}
-
-				// Both have due dates, sort by date
-				if tasks[i].DueDate != nil && tasks[j].DueDate != nil {
-					if !tasks[i].DueDate.Equal(*tasks[j].DueDate) {
-						return tasks[i].DueDate.Before(*tasks[j].DueDate)
-					}
-				}
+		return err
+	})
 
-				// Same due date (or both nil), sort by priority (descending)
-				return tasks[i].Priority > tasks[j].Priority
-			})
+	fetch("Todoist", func() error {
+		tasks, err := h.fetchTasks(ctx, forceRefresh)
+		if err == nil {
+			sortTasksByUrgency(tasks)
+			mu.Lock()
 			data.Tasks = tasks
+			mu.Unlock()
 		}
-	}()
-
-	// Fetch Todoist projects
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
-		select {
-		case <-ctx.Done():
-			return
-		default:
-		}
+		return err
+	})
+
+	fetch("Projects", func() error {
 		projects, err := h.todoistClient.GetProjects(ctx)
-		mu.Lock()
-		defer mu.Unlock()
-		if err != nil {
-			log.Printf("Failed to fetch projects: %v", err)
-		} else {
+		if err == nil {
+			mu.Lock()
 			data.Projects = projects
+			mu.Unlock()
 		}
-	}()
+		return err
+	})
 
-	// Fetch PlanToEat meals (if configured)
 	if h.planToEatClient != nil {
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			select {
-			case <-ctx.Done():
-				return
-			default:
-			}
+		fetch("PlanToEat", func() error {
 			meals, err := h.fetchMeals(ctx, forceRefresh)
-			mu.Lock()
-			defer mu.Unlock()
-			if err != nil {
-				data.Errors = append(data.Errors, "PlanToEat: "+err.Error())
-			} else {
+			if err == nil {
+				mu.Lock()
 				data.Meals = meals
+				mu.Unlock()
 			}
-		}()
+			return err
+		})
 	}
 
-	// Fetch Google Calendar events (if configured)
 	if h.googleCalendarClient != nil {
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			select {
-			case <-ctx.Done():
-				return
-			default:
-			}
+		fetch("Google Calendar", func() error {
 			events, err := h.googleCalendarClient.GetUpcomingEvents(ctx, 10)
-			mu.Lock()
-			defer mu.Unlock()
-			if err != nil {
-				data.Errors = append(data.Errors, "Google Calendar: "+err.Error())
-			} else {
+			if err == nil {
+				mu.Lock()
 				data.Events = events
+				mu.Unlock()
 			}
-		}()
+			return err
+		})
 	}
 
 	wg.Wait()
 
-	// Filter Trello cards into tasks based on heuristic
-	var trelloTasks []models.Card
-	for _, board := range data.Boards {
+	// Extract and sort Trello tasks
+	data.TrelloTasks = filterAndSortTrelloTasks(data.Boards)
+
+	return data, nil
+}
+
+// sortTasksByUrgency sorts tasks by due date then priority
+func sortTasksByUrgency(tasks []models.Task) {
+	sort.Slice(tasks, func(i, j int) bool {
+		if tasks[i].DueDate == nil && tasks[j].DueDate != nil {
+			return false
+		}
+		if tasks[i].DueDate != nil && tasks[j].DueDate == nil {
+			return true
+		}
+		if tasks[i].DueDate != nil && tasks[j].DueDate != nil {
+			if !tasks[i].DueDate.Equal(*tasks[j].DueDate) {
+				return tasks[i].DueDate.Before(*tasks[j].DueDate)
+			}
+		}
+		return tasks[i].Priority > tasks[j].Priority
+	})
+}
+
+// filterAndSortTrelloTasks extracts task-like cards from boards
+func filterAndSortTrelloTasks(boards []models.Board) []models.Card {
+	var tasks []models.Card
+	for _, board := range boards {
 		for _, card := range board.Cards {
-			listNameLower := strings.ToLower(card.ListName)
-			isTask := card.DueDate != nil ||
-				strings.Contains(listNameLower, "todo") ||
-				strings.Contains(listNameLower, "doing") ||
-				strings.Contains(listNameLower, "progress") ||
-				strings.Contains(listNameLower, "task")
-
-			if isTask {
-				trelloTasks = append(trelloTasks, card)
+			if card.DueDate != nil || isActionableList(card.ListName) {
+				tasks = append(tasks, card)
 			}
 		}
 	}
 
-	// Sort trelloTasks: earliest due date first, nil last, then by board name
-	sort.Slice(trelloTasks, func(i, j int) bool {
-		// Both have due dates: compare dates
-		if trelloTasks[i].DueDate != nil && trelloTasks[j].DueDate != nil {
-			if !trelloTasks[i].DueDate.Equal(*trelloTasks[j].DueDate) {
-				return trelloTasks[i].DueDate.Before(*trelloTasks[j].DueDate)
+	sort.Slice(tasks, func(i, j int) bool {
+		if tasks[i].DueDate != nil && tasks[j].DueDate != nil {
+			if !tasks[i].DueDate.Equal(*tasks[j].DueDate) {
+				return tasks[i].DueDate.Before(*tasks[j].DueDate)
 			}
-			// Same due date, fall through to board name comparison
 		}
-
-		// Only one has due date: that one comes first
-		if trelloTasks[i].DueDate != nil && trelloTasks[j].DueDate == nil {
+		if tasks[i].DueDate != nil && tasks[j].DueDate == nil {
 			return true
 		}
-		if trelloTasks[i].DueDate == nil && trelloTasks[j].DueDate != nil {
+		if tasks[i].DueDate == nil && tasks[j].DueDate != nil {
 			return false
 		}
-
-		// Both nil or same due date: sort by board name
-		return trelloTasks[i].BoardName < trelloTasks[j].BoardName
+		return tasks[i].BoardName < tasks[j].BoardName
 	})
 
-	data.TrelloTasks = trelloTasks
-
-	return data, nil
+	return tasks
 }
 
 // fetchTasks fetches tasks from cache or API using incremental sync
@@ -451,134 +386,74 @@ func (h *Handler) fetchTasks(ctx context.Context, forceRefresh bool) ([]models.T
 
 // convertSyncItemToTask converts a sync item to a Task model
 func (h *Handler) convertSyncItemToTask(item api.SyncItemResponse, projectMap map[string]string) models.Task {
-	task := models.Task{
+	// Use the ConvertSyncItemsToTasks helper for single item conversion
+	items := api.ConvertSyncItemsToTasks([]api.SyncItemResponse{item}, projectMap)
+	if len(items) > 0 {
+		return items[0]
+	}
+	// Fallback for completed/deleted items (shouldn't happen in practice)
+	return models.Task{
 		ID:          item.ID,
 		Content:     item.Content,
 		Description: item.Description,
 		ProjectID:   item.ProjectID,
 		ProjectName: projectMap[item.ProjectID],
 		Priority:    item.Priority,
-		Completed:   false,
+		Completed:   item.IsCompleted,
 		Labels:      item.Labels,
 		URL:         fmt.Sprintf("https://todoist.com/app/task/%s", item.ID),
 	}
-
-	if item.AddedAt != "" {
-		if createdAt, err := time.Parse(time.RFC3339, item.AddedAt); err == nil {
-			task.CreatedAt = createdAt
-		}
-	}
-
-	if item.Due != nil {
-		var dueDate time.Time
-		var err error
-		if item.Due.Datetime != "" {
-			dueDate, err = time.Parse(time.RFC3339, item.Due.Datetime)
-		} else if item.Due.Date != "" {
-			dueDate, err = time.Parse("2006-01-02", item.Due.Date)
-		}
-		if err == nil {
-			task.DueDate = &dueDate
-		}
-	}
-
-	return task
 }
 
 // fetchMeals fetches meals from cache or API
 func (h *Handler) fetchMeals(ctx context.Context, forceRefresh bool) ([]models.Meal, error) {
-	cacheKey := store.CacheKeyPlanToEatMeals
-
-	// Check cache validity
-	if !forceRefresh {
-		valid, err := h.store.IsCacheValid(cacheKey)
-		if err == nil && valid {
-			startDate := time.Now()
-			endDate := startDate.AddDate(0, 0, 7)
-			return h.store.GetMeals(startDate, endDate)
-		}
-	}
-
-	// Fetch from API
-	meals, err := h.planToEatClient.GetUpcomingMeals(ctx, 7)
-	if err != nil {
-		// Try to return cached data even if stale
-		startDate := time.Now()
-		endDate := startDate.AddDate(0, 0, 7)
-		cachedMeals, cacheErr := h.store.GetMeals(startDate, endDate)
-		if cacheErr == nil && len(cachedMeals) > 0 {
-			return cachedMeals, nil
-		}
-		return nil, err
-	}
-
-	// Save to cache
-	if err := h.store.SaveMeals(meals); err != nil {
-		log.Printf("Failed to save meals to cache: %v", err)
-	}
+	startDate := time.Now()
+	endDate := startDate.AddDate(0, 0, 7)
 
-	// Update cache metadata
-	if err := h.store.UpdateCacheMetadata(cacheKey, h.config.CacheTTLMinutes); err != nil {
-		log.Printf("Failed to update cache metadata: %v", err)
+	fetcher := &CacheFetcher[models.Meal]{
+		Store:        h.store,
+		CacheKey:     store.CacheKeyPlanToEatMeals,
+		TTLMinutes:   h.config.CacheTTLMinutes,
+		Fetch:        func(ctx context.Context) ([]models.Meal, error) { return h.planToEatClient.GetUpcomingMeals(ctx, 7) },
+		GetFromCache: func() ([]models.Meal, error) { return h.store.GetMeals(startDate, endDate) },
+		SaveToCache:  h.store.SaveMeals,
 	}
-
-	return meals, nil
+	return fetcher.FetchWithCache(ctx, forceRefresh)
 }
 
 // fetchBoards fetches Trello boards from cache or API
 func (h *Handler) fetchBoards(ctx context.Context, forceRefresh bool) ([]models.Board, error) {
-	cacheKey := store.CacheKeyTrelloBoards
-
-	// Check cache validity
-	if !forceRefresh {
-		valid, err := h.store.IsCacheValid(cacheKey)
-		if err == nil && valid {
-			return h.store.GetBoards()
-		}
-	}
-
-	// Fetch from API
-	boards, err := h.trelloClient.GetBoardsWithCards(ctx)
-	if err != nil {
-		// Try to return cached data even if stale
-		cachedBoards, cacheErr := h.store.GetBoards()
-		if cacheErr == nil && len(cachedBoards) > 0 {
-			return cachedBoards, nil
-		}
-		return nil, err
-	}
-
-	// Debug: log what we got from API
-	totalCards := 0
-	for _, b := range boards {
-		totalCards += len(b.Cards)
-		if len(b.Cards) > 0 {
-			log.Printf("Trello API: Board %q has %d cards", b.Name, len(b.Cards))
-		}
-	}
-	log.Printf("Trello API: Fetched %d boards with %d total cards", len(boards), totalCards)
-
-	// Save to cache
-	if err := h.store.SaveBoards(boards); err != nil {
-		log.Printf("Failed to save boards to cache: %v", err)
-	}
-
-	// Update cache metadata
-	if err := h.store.UpdateCacheMetadata(cacheKey, h.config.CacheTTLMinutes); err != nil {
-		log.Printf("Failed to update cache metadata: %v", err)
+	fetcher := &CacheFetcher[models.Board]{
+		Store:      h.store,
+		CacheKey:   store.CacheKeyTrelloBoards,
+		TTLMinutes: h.config.CacheTTLMinutes,
+		Fetch: func(ctx context.Context) ([]models.Board, error) {
+			boards, err := h.trelloClient.GetBoardsWithCards(ctx)
+			if err == nil {
+				// Debug logging
+				totalCards := 0
+				for _, b := range boards {
+					totalCards += len(b.Cards)
+					if len(b.Cards) > 0 {
+						log.Printf("Trello API: Board %q has %d cards", b.Name, len(b.Cards))
+					}
+				}
+				log.Printf("Trello API: Fetched %d boards with %d total cards", len(boards), totalCards)
+			}
+			return boards, err
+		},
+		GetFromCache: h.store.GetBoards,
+		SaveToCache:  h.store.SaveBoards,
 	}
-
-	return boards, nil
+	return fetcher.FetchWithCache(ctx, forceRefresh)
 }
 
 // HandleCreateCard creates a new Trello card
 func (h *Handler) HandleCreateCard(w http.ResponseWriter, r *http.Request) {
 	ctx := r.Context()
 
-	// Parse form data
 	if err := r.ParseForm(); err != nil {
-		http.Error(w, "Failed to parse form", http.StatusBadRequest)
-		log.Printf("Error parsing form: %v", err)
+		JSONError(w, http.StatusBadRequest, "Failed to parse form", err)
 		return
 	}
 
@@ -587,27 +462,21 @@ func (h *Handler) HandleCreateCard(w http.ResponseWriter, r *http.Request) {
 	name := r.FormValue("name")
 
 	if boardID == "" || listID == "" || name == "" {
-		http.Error(w, "Missing required fields", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Missing required fields", nil)
 		return
 	}
 
-	// Create the card
-	_, err := h.trelloClient.CreateCard(ctx, listID, name, "", nil)
-	if err != nil {
-		http.Error(w, "Failed to create card", http.StatusInternalServerError)
-		log.Printf("Error creating card: %v", err)
+	if _, err := h.trelloClient.CreateCard(ctx, listID, name, "", nil); err != nil {
+		JSONError(w, http.StatusInternalServerError, "Failed to create card", err)
 		return
 	}
 
-	// Force refresh to get updated data
 	data, err := h.aggregateData(ctx, true)
 	if err != nil {
-		http.Error(w, "Failed to refresh data", http.StatusInternalServerError)
-		log.Printf("Error refreshing data: %v", err)
+		JSONError(w, http.StatusInternalServerError, "Failed to refresh data", err)
 		return
 	}
 
-	// Find the specific board
 	var targetBoard *models.Board
 	for i := range data.Boards {
 		if data.Boards[i].ID == boardID {
@@ -617,47 +486,31 @@ func (h *Handler) HandleCreateCard(w http.ResponseWriter, r *http.Request) {
 	}
 
 	if targetBoard == nil {
-		http.Error(w, "Board not found", http.StatusNotFound)
+		JSONError(w, http.StatusNotFound, "Board not found", nil)
 		return
 	}
 
-	// Render the updated board
-	if err := h.templates.ExecuteTemplate(w, "trello-board", targetBoard); err != nil {
-		http.Error(w, "Failed to render template", http.StatusInternalServerError)
-		log.Printf("Error rendering board template: %v", err)
-	}
+	HTMLResponse(w, h.templates, "trello-board", targetBoard)
 }
 
 // HandleCompleteCard marks a Trello card as complete
 func (h *Handler) HandleCompleteCard(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-
-	// Parse form data
 	if err := r.ParseForm(); err != nil {
-		http.Error(w, "Failed to parse form", http.StatusBadRequest)
-		log.Printf("Error parsing form: %v", err)
+		JSONError(w, http.StatusBadRequest, "Failed to parse form", err)
 		return
 	}
 
 	cardID := r.FormValue("card_id")
-
 	if cardID == "" {
-		http.Error(w, "Missing card_id", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Missing card_id", nil)
 		return
 	}
 
-	// Mark card as closed (complete)
-	updates := map[string]interface{}{
-		"closed": true,
-	}
-
-	if err := h.trelloClient.UpdateCard(ctx, cardID, updates); err != nil {
-		http.Error(w, "Failed to complete card", http.StatusInternalServerError)
-		log.Printf("Error completing card: %v", err)
+	if err := h.trelloClient.UpdateCard(r.Context(), cardID, map[string]interface{}{"closed": true}); err != nil {
+		JSONError(w, http.StatusInternalServerError, "Failed to complete card", err)
 		return
 	}
 
-	// Return empty response (card will be removed from DOM)
 	w.WriteHeader(http.StatusOK)
 }
 
@@ -665,10 +518,8 @@ func (h *Handler) HandleCompleteCard(w http.ResponseWriter, r *http.Request) {
 func (h *Handler) HandleCreateTask(w http.ResponseWriter, r *http.Request) {
 	ctx := r.Context()
 
-	// Parse form data
 	if err := r.ParseForm(); err != nil {
-		http.Error(w, "Failed to parse form", http.StatusBadRequest)
-		log.Printf("Error parsing form: %v", err)
+		JSONError(w, http.StatusBadRequest, "Failed to parse form", err)
 		return
 	}
 
@@ -676,85 +527,68 @@ func (h *Handler) HandleCreateTask(w http.ResponseWriter, r *http.Request) {
 	projectID := r.FormValue("project_id")
 
 	if content == "" {
-		http.Error(w, "Missing content", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Missing content", nil)
 		return
 	}
 
-	// Create the task
-	_, err := h.todoistClient.CreateTask(ctx, content, projectID, nil, 0)
-	if err != nil {
-		http.Error(w, "Failed to create task", http.StatusInternalServerError)
-		log.Printf("Error creating task: %v", err)
+	if _, err := h.todoistClient.CreateTask(ctx, content, projectID, nil, 0); err != nil {
+		JSONError(w, http.StatusInternalServerError, "Failed to create task", err)
 		return
 	}
 
-	// Force refresh to get updated tasks
 	tasks, err := h.fetchTasks(ctx, true)
 	if err != nil {
-		http.Error(w, "Failed to refresh tasks", http.StatusInternalServerError)
-		log.Printf("Error refreshing tasks: %v", err)
+		JSONError(w, http.StatusInternalServerError, "Failed to refresh tasks", err)
 		return
 	}
 
-	// Fetch projects for the dropdown
-	projects, err := h.todoistClient.GetProjects(ctx)
-	if err != nil {
-		log.Printf("Failed to fetch projects: %v", err)
-		projects = []models.Project{}
-	}
+	projects, _ := h.todoistClient.GetProjects(ctx)
 
-	// Prepare data for template rendering
 	data := struct {
 		Tasks    []models.Task
 		Projects []models.Project
-	}{
-		Tasks:    tasks,
-		Projects: projects,
-	}
+	}{Tasks: tasks, Projects: projects}
 
-	// Render the updated task list
-	if err := h.templates.ExecuteTemplate(w, "todoist-tasks", data); err != nil {
-		http.Error(w, "Failed to render template", http.StatusInternalServerError)
-		log.Printf("Error rendering todoist tasks template: %v", err)
-	}
+	HTMLResponse(w, h.templates, "todoist-tasks", data)
 }
 
 // HandleCompleteTask marks a Todoist task as complete
 func (h *Handler) HandleCompleteTask(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-
-	// Parse form data
 	if err := r.ParseForm(); err != nil {
-		http.Error(w, "Failed to parse form", http.StatusBadRequest)
-		log.Printf("Error parsing form: %v", err)
+		JSONError(w, http.StatusBadRequest, "Failed to parse form", err)
 		return
 	}
 
 	taskID := r.FormValue("task_id")
-
 	if taskID == "" {
-		http.Error(w, "Missing task_id", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Missing task_id", nil)
 		return
 	}
 
-	// Mark task as complete
-	if err := h.todoistClient.CompleteTask(ctx, taskID); err != nil {
-		http.Error(w, "Failed to complete task", http.StatusInternalServerError)
-		log.Printf("Error completing task: %v", err)
+	if err := h.todoistClient.CompleteTask(r.Context(), taskID); err != nil {
+		JSONError(w, http.StatusInternalServerError, "Failed to complete task", err)
 		return
 	}
 
-	// Return empty response (task will be removed from DOM)
 	w.WriteHeader(http.StatusOK)
 }
 
 // HandleCompleteAtom handles completion of a unified task (Atom)
 func (h *Handler) HandleCompleteAtom(w http.ResponseWriter, r *http.Request) {
+	h.handleAtomToggle(w, r, true)
+}
+
+// HandleUncompleteAtom handles reopening a completed task
+func (h *Handler) HandleUncompleteAtom(w http.ResponseWriter, r *http.Request) {
+	h.handleAtomToggle(w, r, false)
+}
+
+// handleAtomToggle handles both complete and uncomplete operations
+func (h *Handler) handleAtomToggle(w http.ResponseWriter, r *http.Request, complete bool) {
 	ctx := r.Context()
 
 	if err := r.ParseForm(); err != nil {
-		http.Error(w, "Failed to parse form", http.StatusBadRequest)
-		log.Printf("Error parsing form: %v", err)
+		JSONError(w, http.StatusBadRequest, "Failed to parse form", err)
 		return
 	}
 
@@ -762,74 +596,48 @@ func (h *Handler) HandleCompleteAtom(w http.ResponseWriter, r *http.Request) {
 	source := r.FormValue("source")
 
 	if id == "" || source == "" {
-		http.Error(w, "Missing id or source", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Missing id or source", nil)
 		return
 	}
 
 	var err error
 	switch source {
 	case "todoist":
-		err = h.todoistClient.CompleteTask(ctx, id)
-	case "trello":
-		// Archive the card (closed = true)
-		updates := map[string]interface{}{
-			"closed": true,
+		if complete {
+			err = h.todoistClient.CompleteTask(ctx, id)
+		} else {
+			err = h.todoistClient.ReopenTask(ctx, id)
 		}
-		err = h.trelloClient.UpdateCard(ctx, id, updates)
+	case "trello":
+		err = h.trelloClient.UpdateCard(ctx, id, map[string]interface{}{"closed": complete})
 	default:
-		http.Error(w, "Unknown source: "+source, http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Unknown source: "+source, nil)
 		return
 	}
 
 	if err != nil {
-		http.Error(w, "Failed to complete task", http.StatusInternalServerError)
-		log.Printf("Error completing atom (source=%s, id=%s): %v", source, id, err)
+		action := "complete"
+		if !complete {
+			action = "reopen"
+		}
+		JSONError(w, http.StatusInternalServerError, "Failed to "+action+" task", err)
 		return
 	}
 
-	// Get task title before removing from cache
-	var title string
-	switch source {
-	case "todoist":
-		if tasks, err := h.store.GetTasks(); err == nil {
-			for _, t := range tasks {
-				if t.ID == id {
-					title = t.Content
-					break
-				}
-			}
-		}
-	case "trello":
-		if boards, err := h.store.GetBoards(); err == nil {
-			for _, b := range boards {
-				for _, c := range b.Cards {
-					if c.ID == id {
-						title = c.Name
-						break
-					}
-				}
-			}
-		}
-	}
-	if title == "" {
-		title = "Task"
-	}
+	if complete {
+		// Get task title before removing from cache
+		title := h.getAtomTitle(id, source)
 
-	// Remove from local cache
-	switch source {
-	case "todoist":
-		if err := h.store.DeleteTask(id); err != nil {
-			log.Printf("Warning: failed to delete task from cache: %v", err)
+		// Remove from local cache
+		switch source {
+		case "todoist":
+			h.store.DeleteTask(id)
+		case "trello":
+			h.store.DeleteCard(id)
 		}
-	case "trello":
-		if err := h.store.DeleteCard(id); err != nil {
-			log.Printf("Warning: failed to delete card from cache: %v", err)
-		}
-	}
 
-	// Return completed task HTML with uncomplete option
-	w.Header().Set("Content-Type", "text/html")
-	completedHTML := fmt.Sprintf(`<div class="bg-white/5 rounded-lg border border-white/5 opacity-60">
+		// Return completed task HTML with uncomplete option
+		completedHTML := fmt.Sprintf(`<div class="bg-white/5 rounded-lg border border-white/5 opacity-60">
 		<div class="flex items-start gap-2 sm:gap-3 p-3 sm:p-4">
 			<input type="checkbox" checked
 				   hx-post="/uncomplete-atom"
@@ -844,59 +652,43 @@ func (h *Handler) HandleCompleteAtom(w http.ResponseWriter, r *http.Request) {
 			</div>
 		</div>
 	</div>`, template.HTMLEscapeString(id), template.HTMLEscapeString(source), template.HTMLEscapeString(title))
-	w.Write([]byte(completedHTML))
-}
-
-// HandleUncompleteAtom handles reopening a completed task
-func (h *Handler) HandleUncompleteAtom(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-
-	if err := r.ParseForm(); err != nil {
-		http.Error(w, "Failed to parse form", http.StatusBadRequest)
-		log.Printf("Error parsing form: %v", err)
-		return
-	}
-
-	id := r.FormValue("id")
-	source := r.FormValue("source")
-
-	if id == "" || source == "" {
-		http.Error(w, "Missing id or source", http.StatusBadRequest)
-		return
-	}
-
-	var err error
-	switch source {
-	case "todoist":
-		err = h.todoistClient.ReopenTask(ctx, id)
-	case "trello":
-		// Reopen the card (closed = false)
-		updates := map[string]interface{}{
-			"closed": false,
+		HTMLString(w, completedHTML)
+	} else {
+		// Invalidate cache to force refresh
+		switch source {
+		case "todoist":
+			h.store.InvalidateCache(store.CacheKeyTodoistTasks)
+		case "trello":
+			h.store.InvalidateCache(store.CacheKeyTrelloBoards)
 		}
-		err = h.trelloClient.UpdateCard(ctx, id, updates)
-	default:
-		http.Error(w, "Unknown source: "+source, http.StatusBadRequest)
-		return
-	}
-
-	if err != nil {
-		http.Error(w, "Failed to reopen task", http.StatusInternalServerError)
-		log.Printf("Error reopening atom (source=%s, id=%s): %v", source, id, err)
-		return
+		w.Header().Set("HX-Trigger", "refresh-tasks")
+		w.WriteHeader(http.StatusOK)
 	}
+}
 
-	// Invalidate cache to force refresh
+// getAtomTitle retrieves the title for a task/card from the store
+func (h *Handler) getAtomTitle(id, source string) string {
 	switch source {
 	case "todoist":
-		h.store.InvalidateCache(store.CacheKeyTodoistTasks)
+		if tasks, err := h.store.GetTasks(); err == nil {
+			for _, t := range tasks {
+				if t.ID == id {
+					return t.Content
+				}
+			}
+		}
 	case "trello":
-		h.store.InvalidateCache(store.CacheKeyTrelloBoards)
+		if boards, err := h.store.GetBoards(); err == nil {
+			for _, b := range boards {
+				for _, c := range b.Cards {
+					if c.ID == id {
+						return c.Name
+					}
+				}
+			}
+		}
 	}
-
-	// Trigger refresh
-	w.Header().Set("HX-Trigger", "refresh-tasks")
-	w.WriteHeader(http.StatusOK)
+	return "Task"
 }
 
 // HandleUnifiedAdd creates a task in Todoist or a card in Trello from the Quick Add form
@@ -904,7 +696,7 @@ func (h *Handler) HandleUnifiedAdd(w http.ResponseWriter, r *http.Request) {
 	ctx := r.Context()
 
 	if err := r.ParseForm(); err != nil {
-		http.Error(w, "Failed to parse form", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Failed to parse form", err)
 		return
 	}
 
@@ -913,69 +705,57 @@ func (h *Handler) HandleUnifiedAdd(w http.ResponseWriter, r *http.Request) {
 	dueDateStr := r.FormValue("due_date")
 
 	if title == "" {
-		http.Error(w, "Title is required", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Title is required", nil)
 		return
 	}
 
-	// Parse due date if provided (use local timezone)
 	var dueDate *time.Time
 	if dueDateStr != "" {
-		parsed, err := time.ParseInLocation("2006-01-02", dueDateStr, time.Local)
-		if err == nil {
+		if parsed, err := time.ParseInLocation("2006-01-02", dueDateStr, time.Local); err == nil {
 			dueDate = &parsed
 		}
 	}
 
 	switch source {
 	case "todoist":
-		_, err := h.todoistClient.CreateTask(ctx, title, "", dueDate, 1)
-		if err != nil {
-			http.Error(w, "Failed to create Todoist task", http.StatusInternalServerError)
-			log.Printf("Error creating Todoist task: %v", err)
+		if _, err := h.todoistClient.CreateTask(ctx, title, "", dueDate, 1); err != nil {
+			JSONError(w, http.StatusInternalServerError, "Failed to create Todoist task", err)
 			return
 		}
-		// Invalidate cache so fresh data is fetched
 		h.store.InvalidateCache(store.CacheKeyTodoistTasks)
 
 	case "trello":
 		listID := r.FormValue("list_id")
 		if listID == "" {
-			http.Error(w, "List is required for Trello", http.StatusBadRequest)
+			JSONError(w, http.StatusBadRequest, "List is required for Trello", nil)
 			return
 		}
-		_, err := h.trelloClient.CreateCard(ctx, listID, title, "", dueDate)
-		if err != nil {
-			http.Error(w, "Failed to create Trello card", http.StatusInternalServerError)
-			log.Printf("Error creating Trello card: %v", err)
+		if _, err := h.trelloClient.CreateCard(ctx, listID, title, "", dueDate); err != nil {
+			JSONError(w, http.StatusInternalServerError, "Failed to create Trello card", err)
 			return
 		}
-		// Invalidate cache so fresh data is fetched
 		h.store.InvalidateCache(store.CacheKeyTrelloBoards)
 
 	default:
-		http.Error(w, "Invalid source", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Invalid source", nil)
 		return
 	}
 
-	// Trigger a refresh of the tasks tab via HTMX
 	w.Header().Set("HX-Trigger", "refresh-tasks")
 	w.WriteHeader(http.StatusOK)
 }
 
 // HandleGetListsOptions returns HTML options for lists in a given board
 func (h *Handler) HandleGetListsOptions(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
 	boardID := r.URL.Query().Get("board_id")
-
 	if boardID == "" {
-		http.Error(w, "board_id is required", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "board_id is required", nil)
 		return
 	}
 
-	lists, err := h.trelloClient.GetLists(ctx, boardID)
+	lists, err := h.trelloClient.GetLists(r.Context(), boardID)
 	if err != nil {
-		http.Error(w, "Failed to fetch lists", http.StatusInternalServerError)
-		log.Printf("Error fetching lists for board %s: %v", boardID, err)
+		JSONError(w, http.StatusInternalServerError, "Failed to fetch lists", err)
 		return
 	}
 
@@ -989,8 +769,7 @@ func (h *Handler) HandleGetListsOptions(w http.ResponseWriter, r *http.Request)
 func (h *Handler) HandleGetBugs(w http.ResponseWriter, r *http.Request) {
 	bugs, err := h.store.GetBugs()
 	if err != nil {
-		http.Error(w, "Failed to fetch bugs", http.StatusInternalServerError)
-		log.Printf("Error fetching bugs: %v", err)
+		JSONError(w, http.StatusInternalServerError, "Failed to fetch bugs", err)
 		return
 	}
 
@@ -1011,23 +790,21 @@ func (h *Handler) HandleGetBugs(w http.ResponseWriter, r *http.Request) {
 // HandleReportBug saves a new bug report
 func (h *Handler) HandleReportBug(w http.ResponseWriter, r *http.Request) {
 	if err := r.ParseForm(); err != nil {
-		http.Error(w, "Invalid form data", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Invalid form data", err)
 		return
 	}
 
 	description := strings.TrimSpace(r.FormValue("description"))
 	if description == "" {
-		http.Error(w, "Description is required", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Description is required", nil)
 		return
 	}
 
 	if err := h.store.SaveBug(description); err != nil {
-		http.Error(w, "Failed to save bug", http.StatusInternalServerError)
-		log.Printf("Error saving bug: %v", err)
+		JSONError(w, http.StatusInternalServerError, "Failed to save bug", err)
 		return
 	}
 
-	// Return updated bug list
 	h.HandleGetBugs(w, r)
 }
 
@@ -1037,32 +814,27 @@ func (h *Handler) HandleGetTaskDetail(w http.ResponseWriter, r *http.Request) {
 	source := r.URL.Query().Get("source")
 
 	if id == "" || source == "" {
-		http.Error(w, "Missing id or source", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Missing id or source", nil)
 		return
 	}
 
 	var title, description string
 	switch source {
 	case "todoist":
-		tasks, err := h.store.GetTasks()
-		if err == nil {
+		if tasks, err := h.store.GetTasks(); err == nil {
 			for _, t := range tasks {
 				if t.ID == id {
-					title = t.Content
-					description = t.Description
+					title, description = t.Content, t.Description
 					break
 				}
 			}
 		}
 	case "trello":
-		boards, err := h.store.GetBoards()
-		if err == nil {
+		if boards, err := h.store.GetBoards(); err == nil {
 			for _, b := range boards {
 				for _, c := range b.Cards {
 					if c.ID == id {
 						title = c.Name
-						// Card model doesn't store description, leave empty
-						description = ""
 						break
 					}
 				}
@@ -1070,7 +842,6 @@ func (h *Handler) HandleGetTaskDetail(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	w.Header().Set("Content-Type", "text/html")
 	html := fmt.Sprintf(`
 		<div class="p-4">
 			<h3 class="font-semibold text-gray-900 mb-3">%s</h3>
@@ -1083,18 +854,17 @@ func (h *Handler) HandleGetTaskDetail(w http.ResponseWriter, r *http.Request) {
 			</form>
 		</div>
 	`, template.HTMLEscapeString(title), template.HTMLEscapeString(id), template.HTMLEscapeString(source), template.HTMLEscapeString(description))
-	w.Write([]byte(html))
+	HTMLString(w, html)
 }
 
 // HandleGetShoppingLists returns the lists from the Shopping board for quick-add
 func (h *Handler) HandleGetShoppingLists(w http.ResponseWriter, r *http.Request) {
 	boards, err := h.store.GetBoards()
 	if err != nil {
-		http.Error(w, "Failed to get boards", http.StatusInternalServerError)
+		JSONError(w, http.StatusInternalServerError, "Failed to get boards", err)
 		return
 	}
 
-	// Find the Shopping board
 	var shoppingBoardID string
 	for _, b := range boards {
 		if strings.EqualFold(b.Name, "Shopping") {
@@ -1104,15 +874,13 @@ func (h *Handler) HandleGetShoppingLists(w http.ResponseWriter, r *http.Request)
 	}
 
 	if shoppingBoardID == "" {
-		http.Error(w, "Shopping board not found", http.StatusNotFound)
+		JSONError(w, http.StatusNotFound, "Shopping board not found", nil)
 		return
 	}
 
-	// Get lists for the shopping board
 	lists, err := h.trelloClient.GetLists(r.Context(), shoppingBoardID)
 	if err != nil {
-		http.Error(w, "Failed to get lists", http.StatusInternalServerError)
-		log.Printf("Error fetching shopping lists: %v", err)
+		JSONError(w, http.StatusInternalServerError, "Failed to get lists", err)
 		return
 	}
 
@@ -1124,10 +892,8 @@ func (h *Handler) HandleGetShoppingLists(w http.ResponseWriter, r *http.Request)
 
 // HandleUpdateTask updates a task description
 func (h *Handler) HandleUpdateTask(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-
 	if err := r.ParseForm(); err != nil {
-		http.Error(w, "Failed to parse form", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Failed to parse form", err)
 		return
 	}
 
@@ -1136,28 +902,291 @@ func (h *Handler) HandleUpdateTask(w http.ResponseWriter, r *http.Request) {
 	description := r.FormValue("description")
 
 	if id == "" || source == "" {
-		http.Error(w, "Missing id or source", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Missing id or source", nil)
 		return
 	}
 
 	var err error
 	switch source {
 	case "todoist":
-		updates := map[string]interface{}{"description": description}
-		err = h.todoistClient.UpdateTask(ctx, id, updates)
+		err = h.todoistClient.UpdateTask(r.Context(), id, map[string]interface{}{"description": description})
 	case "trello":
-		updates := map[string]interface{}{"desc": description}
-		err = h.trelloClient.UpdateCard(ctx, id, updates)
+		err = h.trelloClient.UpdateCard(r.Context(), id, map[string]interface{}{"desc": description})
 	default:
-		http.Error(w, "Unknown source", http.StatusBadRequest)
+		JSONError(w, http.StatusBadRequest, "Unknown source", nil)
 		return
 	}
 
 	if err != nil {
-		http.Error(w, "Failed to update task", http.StatusInternalServerError)
-		log.Printf("Error updating task: %v", err)
+		JSONError(w, http.StatusInternalServerError, "Failed to update task", err)
 		return
 	}
 
 	w.WriteHeader(http.StatusOK)
 }
+
+// HandleTabTasks renders the unified Tasks tab (Todoist + Trello cards with due dates)
+func (h *Handler) HandleTabTasks(w http.ResponseWriter, r *http.Request) {
+	tasks, err := h.store.GetTasks()
+	if err != nil {
+		JSONError(w, http.StatusInternalServerError, "Failed to fetch tasks", err)
+		return
+	}
+
+	boards, err := h.store.GetBoards()
+	if err != nil {
+		JSONError(w, http.StatusInternalServerError, "Failed to fetch boards", err)
+		return
+	}
+
+	atoms := make([]models.Atom, 0)
+
+	for _, task := range tasks {
+		if !task.Completed {
+			atoms = append(atoms, models.TaskToAtom(task))
+		}
+	}
+
+	for _, board := range boards {
+		for _, card := range board.Cards {
+			if card.DueDate != nil || isActionableList(card.ListName) {
+				atoms = append(atoms, models.CardToAtom(card))
+			}
+		}
+	}
+
+	for i := range atoms {
+		atoms[i].ComputeUIFields()
+	}
+
+	sort.SliceStable(atoms, func(i, j int) bool {
+		tierI := atomUrgencyTier(atoms[i])
+		tierJ := atomUrgencyTier(atoms[j])
+
+		if tierI != tierJ {
+			return tierI < tierJ
+		}
+
+		if atoms[i].DueDate != nil && atoms[j].DueDate != nil {
+			if !atoms[i].DueDate.Equal(*atoms[j].DueDate) {
+				return atoms[i].DueDate.Before(*atoms[j].DueDate)
+			}
+		}
+
+		return atoms[i].Priority > atoms[j].Priority
+	})
+
+	var currentAtoms, futureAtoms []models.Atom
+	for _, a := range atoms {
+		if a.IsFuture {
+			futureAtoms = append(futureAtoms, a)
+		} else {
+			currentAtoms = append(currentAtoms, a)
+		}
+	}
+
+	data := struct {
+		Atoms       []models.Atom
+		FutureAtoms []models.Atom
+		Boards      []models.Board
+		Today       string
+	}{
+		Atoms:       currentAtoms,
+		FutureAtoms: futureAtoms,
+		Boards:      boards,
+		Today:       time.Now().Format("2006-01-02"),
+	}
+
+	HTMLResponse(w, h.templates, "tasks-tab", data)
+}
+
+// HandleTabPlanning renders the Planning tab with structured sections
+func (h *Handler) HandleTabPlanning(w http.ResponseWriter, r *http.Request) {
+	now := time.Now()
+	today := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
+	tomorrow := today.AddDate(0, 0, 1)
+	in3Days := today.AddDate(0, 0, 4)
+
+	boards, _ := h.store.GetBoards()
+	tasks, _ := h.store.GetTasks()
+
+	var events []models.CalendarEvent
+	if h.googleCalendarClient != nil {
+		events, _ = h.googleCalendarClient.GetUpcomingEvents(r.Context(), 20)
+	}
+
+	var scheduled []ScheduledItem
+	var unscheduled []models.Atom
+	var upcoming []ScheduledItem
+
+	for _, event := range events {
+		item := ScheduledItem{
+			Type:       "event",
+			ID:         event.ID,
+			Title:      event.Summary,
+			Start:      event.Start,
+			End:        event.End,
+			URL:        event.HTMLLink,
+			Source:     "calendar",
+			SourceIcon: "📅",
+		}
+
+		if event.Start.Before(tomorrow) {
+			scheduled = append(scheduled, item)
+		} else if event.Start.Before(in3Days) {
+			upcoming = append(upcoming, item)
+		}
+	}
+
+	for _, task := range tasks {
+		if task.Completed || task.DueDate == nil {
+			continue
+		}
+		dueDate := *task.DueDate
+		hasTime := dueDate.Hour() != 0 || dueDate.Minute() != 0
+
+		if dueDate.Before(tomorrow) {
+			if hasTime {
+				scheduled = append(scheduled, ScheduledItem{
+					Type:       "task",
+					ID:         task.ID,
+					Title:      task.Content,
+					Start:      dueDate,
+					URL:        task.URL,
+					Source:     "todoist",
+					SourceIcon: "✓",
+					Priority:   task.Priority,
+				})
+			} else {
+				atom := models.TaskToAtom(task)
+				atom.ComputeUIFields()
+				unscheduled = append(unscheduled, atom)
+			}
+		} else if dueDate.Before(in3Days) {
+			upcoming = append(upcoming, ScheduledItem{
+				Type:       "task",
+				ID:         task.ID,
+				Title:      task.Content,
+				Start:      dueDate,
+				URL:        task.URL,
+				Source:     "todoist",
+				SourceIcon: "✓",
+				Priority:   task.Priority,
+			})
+		}
+	}
+
+	for _, board := range boards {
+		for _, card := range board.Cards {
+			if card.DueDate == nil {
+				continue
+			}
+			dueDate := *card.DueDate
+			hasTime := dueDate.Hour() != 0 || dueDate.Minute() != 0
+
+			if dueDate.Before(tomorrow) {
+				if hasTime {
+					scheduled = append(scheduled, ScheduledItem{
+						Type:       "task",
+						ID:         card.ID,
+						Title:      card.Name,
+						Start:      dueDate,
+						URL:        card.URL,
+						Source:     "trello",
+						SourceIcon: "📋",
+					})
+				} else {
+					atom := models.CardToAtom(card)
+					atom.ComputeUIFields()
+					unscheduled = append(unscheduled, atom)
+				}
+			} else if dueDate.Before(in3Days) {
+				upcoming = append(upcoming, ScheduledItem{
+					Type:       "task",
+					ID:         card.ID,
+					Title:      card.Name,
+					Start:      dueDate,
+					URL:        card.URL,
+					Source:     "trello",
+					SourceIcon: "📋",
+				})
+			}
+		}
+	}
+
+	sort.Slice(scheduled, func(i, j int) bool { return scheduled[i].Start.Before(scheduled[j].Start) })
+	sort.Slice(unscheduled, func(i, j int) bool { return unscheduled[i].Priority > unscheduled[j].Priority })
+	sort.Slice(upcoming, func(i, j int) bool { return upcoming[i].Start.Before(upcoming[j].Start) })
+
+	data := struct {
+		Scheduled   []ScheduledItem
+		Unscheduled []models.Atom
+		Upcoming    []ScheduledItem
+		Boards      []models.Board
+		Today       string
+	}{
+		Scheduled:   scheduled,
+		Unscheduled: unscheduled,
+		Upcoming:    upcoming,
+		Boards:      boards,
+		Today:       today.Format("2006-01-02"),
+	}
+
+	HTMLResponse(w, h.templates, "planning-tab", data)
+}
+
+// HandleTabMeals renders the Meals tab (PlanToEat)
+func (h *Handler) HandleTabMeals(w http.ResponseWriter, r *http.Request) {
+	startDate := time.Now()
+	endDate := startDate.AddDate(0, 0, 7)
+
+	meals, err := h.store.GetMeals(startDate, endDate)
+	if err != nil {
+		JSONError(w, http.StatusInternalServerError, "Failed to fetch meals", err)
+		return
+	}
+
+	HTMLResponse(w, h.templates, "meals-tab", struct{ Meals []models.Meal }{meals})
+}
+
+// isActionableList returns true if the list name indicates an actionable list
+func isActionableList(name string) bool {
+	lower := strings.ToLower(name)
+	return strings.Contains(lower, "doing") ||
+		strings.Contains(lower, "in progress") ||
+		strings.Contains(lower, "to do") ||
+		strings.Contains(lower, "todo") ||
+		strings.Contains(lower, "tasks") ||
+		strings.Contains(lower, "next") ||
+		strings.Contains(lower, "today")
+}
+
+// atomUrgencyTier returns the urgency tier for sorting
+func atomUrgencyTier(a models.Atom) int {
+	if a.DueDate == nil {
+		return 4
+	}
+	if a.IsOverdue {
+		return 0
+	}
+	if a.IsFuture {
+		return 3
+	}
+	if a.HasSetTime {
+		return 1
+	}
+	return 2
+}
+
+// ScheduledItem represents a scheduled event or task for the planning view
+type ScheduledItem struct {
+	Type       string
+	ID         string
+	Title      string
+	Start      time.Time
+	End        time.Time
+	URL        string
+	Source     string
+	SourceIcon string
+	Priority   int
+}
diff --git a/internal/handlers/heuristic_test.go b/internal/handlers/heuristic_test.go
index b03b664..82f4e90 100644
--- a/internal/handlers/heuristic_test.go
+++ b/internal/handlers/heuristic_test.go
@@ -1,97 +1,109 @@
 package handlers
 
 import (
-	"net/http/httptest"
-	"os"
-	"strings"
 	"testing"
 	"time"
 
 	"task-dashboard/internal/models"
-	"task-dashboard/internal/store"
 )
 
-func TestHandleTasks_Heuristic(t *testing.T) {
-	// Create temp database file
-	tmpFile, err := os.CreateTemp("", "test_heuristic_*.db")
-	if err != nil {
-		t.Fatalf("Failed to create temp db: %v", err)
+func TestIsActionableList(t *testing.T) {
+	tests := []struct {
+		name     string
+		listName string
+		want     bool
+	}{
+		{"doing list", "Doing", true},
+		{"in progress", "In Progress", true},
+		{"to do", "To Do", true},
+		{"todo", "todo", true},
+		{"tasks", "My Tasks", true},
+		{"next", "Next Up", true},
+		{"today", "Today", true},
+		{"backlog", "Backlog", false},
+		{"done", "Done", false},
+		{"ideas", "Ideas", false},
 	}
-	tmpFile.Close()
-	defer os.Remove(tmpFile.Name())
 
-	// Save current directory and change to project root
-	originalDir, err := os.Getwd()
-	if err != nil {
-		t.Fatalf("Failed to get working directory: %v", err)
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := isActionableList(tt.listName); got != tt.want {
+				t.Errorf("isActionableList(%q) = %v, want %v", tt.listName, got, tt.want)
+			}
+		})
 	}
+}
 
-	// Change to project root (2 levels up from internal/handlers)
-	if err := os.Chdir("../../"); err != nil {
-		t.Fatalf("Failed to change to project root: %v", err)
-	}
-	defer os.Chdir(originalDir)
-
-	// Initialize store (this runs migrations)
-	db, err := store.New(tmpFile.Name(), "migrations")
-	if err != nil {
-		t.Fatalf("Failed to initialize store: %v", err)
-	}
-	defer db.Close()
-
-	// Seed Data
-	// Board 1: Has actionable lists
-	board1 := models.Board{ID: "b1", Name: "Work Board"}
-
-	// Card 1: Has Due Date (Should appear)
+func TestFilterAndSortTrelloTasks(t *testing.T) {
 	due := time.Now()
-	card1 := models.Card{ID: "c1", Name: "Due Task", ListID: "l1", ListName: "Backlog", DueDate: &due, BoardName: "Work Board"}
-
-	// Card 2: No Due Date, Actionable List (Should appear)
-	card2 := models.Card{ID: "c2", Name: "Doing Task", ListID: "l2", ListName: "Doing", BoardName: "Work Board"}
-
-	// Card 3: No Due Date, Non-Actionable List (Should NOT appear)
-	card3 := models.Card{ID: "c3", Name: "Backlog Task", ListID: "l1", ListName: "Backlog", BoardName: "Work Board"}
-
-	// Card 4: No Due Date, "To Do" List (Should appear)
-	card4 := models.Card{ID: "c4", Name: "Todo Task", ListID: "l3", ListName: "To Do", BoardName: "Work Board"}
-
-	board1.Cards = []models.Card{card1, card2, card3, card4}
-
-	if err := db.SaveBoards([]models.Board{board1}); err != nil {
-		t.Fatalf("Failed to save boards: %v", err)
+	boards := []models.Board{
+		{
+			ID:   "b1",
+			Name: "Work Board",
+			Cards: []models.Card{
+				{ID: "c1", Name: "Due Task", ListName: "Backlog", DueDate: &due, BoardName: "Work Board"},
+				{ID: "c2", Name: "Doing Task", ListName: "Doing", BoardName: "Work Board"},
+				{ID: "c3", Name: "Backlog Task", ListName: "Backlog", BoardName: "Work Board"},
+				{ID: "c4", Name: "Todo Task", ListName: "To Do", BoardName: "Work Board"},
+			},
+		},
 	}
 
-	// Create Handler
-	h := NewTabsHandler(db, nil, "../../web/templates")
+	tasks := filterAndSortTrelloTasks(boards)
 
-	// Skip if templates are not loaded
-	if h.templates == nil {
-		t.Skip("Templates not available in test environment")
+	// Should have 3 tasks: c1 (has due date), c2 (Doing list), c4 (To Do list)
+	if len(tasks) != 3 {
+		t.Errorf("Expected 3 tasks, got %d", len(tasks))
 	}
 
-	req := httptest.NewRequest("GET", "/tabs/tasks", nil)
-	w := httptest.NewRecorder()
-
-	// Execute
-	h.HandleTasks(w, req)
+	// Verify c3 (Backlog without due date) is not included
+	for _, task := range tasks {
+		if task.ID == "c3" {
+			t.Error("Backlog task without due date should not be included")
+		}
+	}
 
-	// Verify
-	resp := w.Body.String()
+	// Verify expected tasks are present
+	found := map[string]bool{}
+	for _, task := range tasks {
+		found[task.ID] = true
+	}
 
-	// Check for presence of expected tasks
-	if !strings.Contains(resp, "Due Task") {
-		t.Errorf("Expected 'Due Task' to be present")
+	if !found["c1"] {
+		t.Error("Expected c1 (Due Task) to be present")
+	}
+	if !found["c2"] {
+		t.Error("Expected c2 (Doing Task) to be present")
 	}
-	if !strings.Contains(resp, "Doing Task") {
-		t.Errorf("Expected 'Doing Task' to be present")
+	if !found["c4"] {
+		t.Error("Expected c4 (Todo Task) to be present")
 	}
-	if !strings.Contains(resp, "Todo Task") {
-		t.Errorf("Expected 'Todo Task' to be present")
+}
+
+func TestAtomUrgencyTier(t *testing.T) {
+	now := time.Now()
+	yesterday := now.AddDate(0, 0, -1)
+	tomorrow := now.AddDate(0, 0, 1)
+	todayWithTime := time.Date(now.Year(), now.Month(), now.Day(), 14, 30, 0, 0, now.Location())
+	todayMidnight := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
+
+	tests := []struct {
+		name string
+		atom models.Atom
+		want int
+	}{
+		{"no due date", models.Atom{DueDate: nil}, 4},
+		{"overdue", models.Atom{DueDate: &yesterday, IsOverdue: true}, 0},
+		{"future", models.Atom{DueDate: &tomorrow, IsFuture: true}, 3},
+		{"today with time", models.Atom{DueDate: &todayWithTime, HasSetTime: true}, 1},
+		{"today all-day", models.Atom{DueDate: &todayMidnight, HasSetTime: false}, 2},
 	}
 
-	// Check for absence of non-expected tasks
-	if strings.Contains(resp, "Backlog Task") {
-		t.Errorf("Expected 'Backlog Task' to be ABSENT")
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := atomUrgencyTier(tt.atom); got != tt.want {
+				t.Errorf("atomUrgencyTier() = %v, want %v", got, tt.want)
+			}
+		})
 	}
 }
diff --git a/internal/handlers/response.go b/internal/handlers/response.go
new file mode 100644
index 0000000..3976f02
--- /dev/null
+++ b/internal/handlers/response.go
@@ -0,0 +1,36 @@
+package handlers
+
+import (
+	"encoding/json"
+	"html/template"
+	"log"
+	"net/http"
+)
+
+// JSONResponse writes data as JSON with appropriate headers
+func JSONResponse(w http.ResponseWriter, data interface{}) {
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(data)
+}
+
+// JSONError writes an error response as JSON
+func JSONError(w http.ResponseWriter, status int, msg string, err error) {
+	if err != nil {
+		log.Printf("Error: %s: %v", msg, err)
+	}
+	http.Error(w, msg, status)
+}
+
+// HTMLResponse renders an HTML template
+func HTMLResponse(w http.ResponseWriter, tmpl *template.Template, name string, data interface{}) {
+	if err := tmpl.ExecuteTemplate(w, name, data); err != nil {
+		http.Error(w, "Failed to render template", http.StatusInternalServerError)
+		log.Printf("Error rendering template %s: %v", name, err)
+	}
+}
+
+// HTMLString writes an HTML string directly
+func HTMLString(w http.ResponseWriter, html string) {
+	w.Header().Set("Content-Type", "text/html")
+	w.Write([]byte(html))
+}
diff --git a/internal/handlers/tabs.go b/internal/handlers/tabs.go
deleted file mode 100644
index 87be344..0000000
--- a/internal/handlers/tabs.go
+++ /dev/null
@@ -1,384 +0,0 @@
-package handlers
-
-import (
-	"html/template"
-	"log"
-	"net/http"
-	"path/filepath"
-	"sort"
-	"strings"
-	"time"
-
-	"task-dashboard/internal/api"
-	"task-dashboard/internal/models"
-	"task-dashboard/internal/store"
-)
-
-// isActionableList returns true if the list name indicates an actionable list
-func isActionableList(name string) bool {
-	lower := strings.ToLower(name)
-	return strings.Contains(lower, "doing") ||
-		strings.Contains(lower, "in progress") ||
-		strings.Contains(lower, "to do") ||
-		strings.Contains(lower, "todo") ||
-		strings.Contains(lower, "tasks") ||
-		strings.Contains(lower, "next") ||
-		strings.Contains(lower, "today")
-}
-
-// atomUrgencyTier returns the urgency tier for sorting:
-// 0: Overdue, 1: Today with time, 2: Today all-day, 3: Future, 4: No due date
-func atomUrgencyTier(a models.Atom) int {
-	if a.DueDate == nil {
-		return 4 // No due date
-	}
-	if a.IsOverdue {
-		return 0 // Overdue
-	}
-	if a.IsFuture {
-		return 3 // Future
-	}
-	// Due today
-	if a.HasSetTime {
-		return 1 // Today with specific time
-	}
-	return 2 // Today all-day
-}
-
-// TabsHandler handles tab-specific rendering with Atom model
-type TabsHandler struct {
-	store                *store.Store
-	googleCalendarClient api.GoogleCalendarAPI
-	templates            *template.Template
-}
-
-// NewTabsHandler creates a new TabsHandler instance
-func NewTabsHandler(store *store.Store, googleCalendarClient api.GoogleCalendarAPI, templateDir string) *TabsHandler {
-	// Parse templates including partials
-	tmpl, err := template.ParseGlob(filepath.Join(templateDir, "*.html"))
-	if err != nil {
-		log.Printf("Warning: failed to parse templates: %v", err)
-	}
-
-	// Also parse partials
-	tmpl, err = tmpl.ParseGlob(filepath.Join(templateDir, "partials", "*.html"))
-	if err != nil {
-		log.Printf("Warning: failed to parse partial templates: %v", err)
-	}
-
-	return &TabsHandler{
-		store:                store,
-		googleCalendarClient: googleCalendarClient,
-		templates:            tmpl,
-	}
-}
-
-// HandleTasks renders the unified Tasks tab (Todoist + Trello cards with due dates)
-func (h *TabsHandler) HandleTasks(w http.ResponseWriter, r *http.Request) {
-	// Fetch Todoist tasks
-	tasks, err := h.store.GetTasks()
-	if err != nil {
-		http.Error(w, "Failed to fetch tasks", http.StatusInternalServerError)
-		log.Printf("Error fetching tasks: %v", err)
-		return
-	}
-
-	// Fetch Trello boards
-	boards, err := h.store.GetBoards()
-	if err != nil {
-		http.Error(w, "Failed to fetch boards", http.StatusInternalServerError)
-		log.Printf("Error fetching boards: %v", err)
-		return
-	}
-
-	// Convert to Atoms
-	atoms := make([]models.Atom, 0)
-
-	// Convert Todoist tasks
-	for _, task := range tasks {
-		if !task.Completed {
-			atoms = append(atoms, models.TaskToAtom(task))
-		}
-	}
-
-	// Convert Trello cards with due dates or in actionable lists
-	for _, board := range boards {
-		for _, card := range board.Cards {
-			if card.DueDate != nil || isActionableList(card.ListName) {
-				atoms = append(atoms, models.CardToAtom(card))
-			}
-		}
-	}
-
-	// Compute UI fields (IsOverdue, IsFuture, HasSetTime)
-	for i := range atoms {
-		atoms[i].ComputeUIFields()
-	}
-
-	// Sort atoms by urgency tiers:
-	// 1. Overdue (before today)
-	// 2. Today with specific time
-	// 3. Today all-day (midnight)
-	// 4. Future
-	// 5. No due date
-	// Within each tier: sort by due date/time, then by priority
-	sort.SliceStable(atoms, func(i, j int) bool {
-		// Compute urgency tier (lower = more urgent)
-		tierI := atomUrgencyTier(atoms[i])
-		tierJ := atomUrgencyTier(atoms[j])
-
-		if tierI != tierJ {
-			return tierI < tierJ
-		}
-
-		// Same tier: sort by due date/time if both have dates
-		if atoms[i].DueDate != nil && atoms[j].DueDate != nil {
-			if !atoms[i].DueDate.Equal(*atoms[j].DueDate) {
-				return atoms[i].DueDate.Before(*atoms[j].DueDate)
-			}
-		}
-
-		// Same due date/time (or both nil), sort by priority (descending)
-		return atoms[i].Priority > atoms[j].Priority
-	})
-
-	// Partition atoms into current (overdue + today) and future
-	var currentAtoms, futureAtoms []models.Atom
-	for _, a := range atoms {
-		if a.IsFuture {
-			futureAtoms = append(futureAtoms, a)
-		} else {
-			currentAtoms = append(currentAtoms, a)
-		}
-	}
-
-	// Render template
-	data := struct {
-		Atoms       []models.Atom // Current tasks (overdue + today)
-		FutureAtoms []models.Atom // Future tasks (hidden by default)
-		Boards      []models.Board
-		Today       string
-	}{
-		Atoms:       currentAtoms,
-		FutureAtoms: futureAtoms,
-		Boards:      boards,
-		Today:       time.Now().Format("2006-01-02"),
-	}
-
-	if err := h.templates.ExecuteTemplate(w, "tasks-tab", data); err != nil {
-		http.Error(w, "Failed to render template", http.StatusInternalServerError)
-		log.Printf("Error rendering tasks tab: %v", err)
-	}
-}
-
-// ScheduledItem represents a scheduled event or task for the planning view
-type ScheduledItem struct {
-	Type        string    // "event" or "task"
-	ID          string
-	Title       string
-	Description string
-	Start       time.Time
-	End         time.Time
-	URL         string
-	Source      string // "todoist", "trello", "calendar"
-	SourceIcon  string
-	Priority    int
-}
-
-// HandlePlanning renders the Planning tab with structured sections
-func (h *TabsHandler) HandlePlanning(w http.ResponseWriter, r *http.Request) {
-	now := time.Now()
-	today := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
-	tomorrow := today.AddDate(0, 0, 1)
-	in3Days := today.AddDate(0, 0, 4) // End of 3rd day
-
-	// Fetch Trello boards
-	boards, err := h.store.GetBoards()
-	if err != nil {
-		log.Printf("Error fetching boards: %v", err)
-		boards = []models.Board{}
-	}
-
-	// Fetch Todoist tasks
-	tasks, err := h.store.GetTasks()
-	if err != nil {
-		log.Printf("Error fetching tasks: %v", err)
-		tasks = []models.Task{}
-	}
-
-	// Fetch Google Calendar events
-	var events []models.CalendarEvent
-	if h.googleCalendarClient != nil {
-		events, err = h.googleCalendarClient.GetUpcomingEvents(r.Context(), 20)
-		if err != nil {
-			log.Printf("Error fetching calendar events: %v", err)
-		}
-	}
-
-	// Categorize into sections
-	var scheduled []ScheduledItem   // Events and timed tasks for today
-	var unscheduled []models.Atom   // Tasks due today without specific time
-	var upcoming []ScheduledItem    // Events and tasks for next 3 days
-
-	// Process calendar events
-	for _, event := range events {
-		item := ScheduledItem{
-			Type:        "event",
-			ID:          event.ID,
-			Title:       event.Summary,
-			Description: event.Description,
-			Start:       event.Start,
-			End:         event.End,
-			URL:         event.HTMLLink,
-			Source:      "calendar",
-			SourceIcon:  "📅",
-		}
-
-		if event.Start.Before(tomorrow) {
-			scheduled = append(scheduled, item)
-		} else if event.Start.Before(in3Days) {
-			upcoming = append(upcoming, item)
-		}
-	}
-
-	// Process Todoist tasks
-	for _, task := range tasks {
-		if task.Completed || task.DueDate == nil {
-			continue
-		}
-		dueDate := *task.DueDate
-
-		// Check if task has a specific time (not midnight)
-		hasTime := dueDate.Hour() != 0 || dueDate.Minute() != 0
-
-		if dueDate.Before(tomorrow) {
-			if hasTime {
-				// Timed task for today -> scheduled
-				scheduled = append(scheduled, ScheduledItem{
-					Type:       "task",
-					ID:         task.ID,
-					Title:      task.Content,
-					Start:      dueDate,
-					URL:        task.URL,
-					Source:     "todoist",
-					SourceIcon: "✓",
-					Priority:   task.Priority,
-				})
-			} else {
-				// All-day task for today -> unscheduled
-				atom := models.TaskToAtom(task)
-				atom.ComputeUIFields()
-				unscheduled = append(unscheduled, atom)
-			}
-		} else if dueDate.Before(in3Days) {
-			upcoming = append(upcoming, ScheduledItem{
-				Type:       "task",
-				ID:         task.ID,
-				Title:      task.Content,
-				Start:      dueDate,
-				URL:        task.URL,
-				Source:     "todoist",
-				SourceIcon: "✓",
-				Priority:   task.Priority,
-			})
-		}
-	}
-
-	// Process Trello cards with due dates
-	for _, board := range boards {
-		for _, card := range board.Cards {
-			if card.DueDate == nil {
-				continue
-			}
-			dueDate := *card.DueDate
-			hasTime := dueDate.Hour() != 0 || dueDate.Minute() != 0
-
-			if dueDate.Before(tomorrow) {
-				if hasTime {
-					scheduled = append(scheduled, ScheduledItem{
-						Type:       "task",
-						ID:         card.ID,
-						Title:      card.Name,
-						Start:      dueDate,
-						URL:        card.URL,
-						Source:     "trello",
-						SourceIcon: "📋",
-					})
-				} else {
-					atom := models.CardToAtom(card)
-					atom.ComputeUIFields()
-					unscheduled = append(unscheduled, atom)
-				}
-			} else if dueDate.Before(in3Days) {
-				upcoming = append(upcoming, ScheduledItem{
-					Type:       "task",
-					ID:         card.ID,
-					Title:      card.Name,
-					Start:      dueDate,
-					URL:        card.URL,
-					Source:     "trello",
-					SourceIcon: "📋",
-				})
-			}
-		}
-	}
-
-	// Sort scheduled by start time
-	sort.Slice(scheduled, func(i, j int) bool {
-		return scheduled[i].Start.Before(scheduled[j].Start)
-	})
-
-	// Sort unscheduled by priority (higher first)
-	sort.Slice(unscheduled, func(i, j int) bool {
-		return unscheduled[i].Priority > unscheduled[j].Priority
-	})
-
-	// Sort upcoming by date
-	sort.Slice(upcoming, func(i, j int) bool {
-		return upcoming[i].Start.Before(upcoming[j].Start)
-	})
-
-	data := struct {
-		Scheduled   []ScheduledItem
-		Unscheduled []models.Atom
-		Upcoming    []ScheduledItem
-		Boards      []models.Board
-		Today       string
-	}{
-		Scheduled:   scheduled,
-		Unscheduled: unscheduled,
-		Upcoming:    upcoming,
-		Boards:      boards,
-		Today:       today.Format("2006-01-02"),
-	}
-
-	if err := h.templates.ExecuteTemplate(w, "planning-tab", data); err != nil {
-		http.Error(w, "Failed to render template", http.StatusInternalServerError)
-		log.Printf("Error rendering planning tab: %v", err)
-	}
-}
-
-// HandleMeals renders the Meals tab (PlanToEat)
-func (h *TabsHandler) HandleMeals(w http.ResponseWriter, r *http.Request) {
-	// Fetch meals for next 7 days
-	startDate := time.Now()
-	endDate := startDate.AddDate(0, 0, 7)
-
-	meals, err := h.store.GetMeals(startDate, endDate)
-	if err != nil {
-		http.Error(w, "Failed to fetch meals", http.StatusInternalServerError)
-		log.Printf("Error fetching meals: %v", err)
-		return
-	}
-
-	data := struct {
-		Meals []models.Meal
-	}{
-		Meals: meals,
-	}
-
-	if err := h.templates.ExecuteTemplate(w, "meals-tab", data); err != nil {
-		http.Error(w, "Failed to render template", http.StatusInternalServerError)
-		log.Printf("Error rendering meals tab: %v", err)
-	}
-}
diff --git a/internal/store/sqlite.go b/internal/store/sqlite.go
index a4d01a2..5b67234 100644
--- a/internal/store/sqlite.go
+++ b/internal/store/sqlite.go
@@ -595,3 +595,100 @@ func (s *Store) GetBugs() ([]Bug, error) {
 	}
 	return bugs, rows.Err()
 }
+
+// GetTasksByDateRange retrieves tasks due within a specific date range
+func (s *Store) GetTasksByDateRange(start, end time.Time) ([]models.Task, error) {
+	rows, err := s.db.Query(`
+		SELECT id, content, description, project_id, project_name, due_date, priority, completed, labels, url, created_at
+		FROM tasks
+		WHERE due_date BETWEEN ? AND ?
+		ORDER BY due_date ASC, priority DESC
+	`, start, end)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var tasks []models.Task
+	for rows.Next() {
+		var task models.Task
+		var labelsJSON string
+		var dueDate sql.NullTime
+
+		err := rows.Scan(
+			&task.ID,
+			&task.Content,
+			&task.Description,
+			&task.ProjectID,
+			&task.ProjectName,
+			&dueDate,
+			&task.Priority,
+			&task.Completed,
+			&labelsJSON,
+			&task.URL,
+			&task.CreatedAt,
+		)
+		if err != nil {
+			return nil, err
+		}
+
+		if dueDate.Valid {
+			task.DueDate = &dueDate.Time
+		}
+
+		if err := json.Unmarshal([]byte(labelsJSON), &task.Labels); err != nil {
+			log.Printf("Warning: failed to unmarshal labels for task %s: %v", task.ID, err)
+			task.Labels = []string{}
+		}
+		tasks = append(tasks, task)
+	}
+
+	return tasks, rows.Err()
+}
+
+// GetMealsByDateRange retrieves meals within a specific date range
+func (s *Store) GetMealsByDateRange(start, end time.Time) ([]models.Meal, error) {
+	return s.GetMeals(start, end)
+}
+
+// GetCardsByDateRange retrieves cards due within a specific date range
+func (s *Store) GetCardsByDateRange(start, end time.Time) ([]models.Card, error) {
+	rows, err := s.db.Query(`
+		SELECT c.id, c.name, b.name, c.list_id, c.list_name, c.due_date, c.url
+		FROM cards c
+		JOIN boards b ON c.board_id = b.id
+		WHERE c.due_date BETWEEN ? AND ?
+		ORDER BY c.due_date ASC
+	`, start, end)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var cards []models.Card
+	for rows.Next() {
+		var card models.Card
+		var dueDate sql.NullTime
+
+		err := rows.Scan(
+			&card.ID,
+			&card.Name,
+			&card.BoardName,
+			&card.ListID,
+			&card.ListName,
+			&dueDate,
+			&card.URL,
+		)
+		if err != nil {
+			return nil, err
+		}
+
+		if dueDate.Valid {
+			card.DueDate = &dueDate.Time
+		}
+
+		cards = append(cards, card)
+	}
+
+	return cards, rows.Err()
+}
diff --git a/internal/store/sqlite_test.go b/internal/store/sqlite_test.go
index c09f3ca..7027cbe 100644
--- a/internal/store/sqlite_test.go
+++ b/internal/store/sqlite_test.go
@@ -89,6 +89,39 @@ func setupTestStoreWithCards(t *testing.T) *Store {
 	return store
 }
 
+// setupTestStoreWithMeals creates a test store with meals table
+func setupTestStoreWithMeals(t *testing.T) *Store {
+	t.Helper()
+
+	tempDir := t.TempDir()
+	dbPath := filepath.Join(tempDir, "test.db")
+
+	db, err := sql.Open("sqlite3", dbPath)
+	if err != nil {
+		t.Fatalf("Failed to open test database: %v", err)
+	}
+
+	db.SetMaxOpenConns(1)
+
+	store := &Store{db: db}
+
+	schema := `
+		CREATE TABLE IF NOT EXISTS meals (
+			id TEXT PRIMARY KEY,
+			recipe_name TEXT NOT NULL,
+			date DATETIME,
+			meal_type TEXT,
+			recipe_url TEXT,
+			updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+		);
+	`
+	if _, err := db.Exec(schema); err != nil {
+		t.Fatalf("Failed to create schema: %v", err)
+	}
+
+	return store
+}
+
 // TestDeleteTask verifies that DeleteTask removes a task from the cache
 func TestDeleteTask(t *testing.T) {
 	store := setupTestStoreWithTasks(t)
@@ -430,3 +463,109 @@ func TestSaveAndGetBoards_ManyBoards(t *testing.T) {
 		t.Errorf("Expected %d total cards, got %d", expectedTotal, totalCards)
 	}
 }
+
+func TestGetTasksByDateRange(t *testing.T) {
+	store := setupTestStoreWithTasks(t)
+	defer store.Close()
+
+	now := time.Now()
+	tomorrow := now.Add(24 * time.Hour)
+	nextWeek := now.Add(7 * 24 * time.Hour)
+
+	tasks := []models.Task{
+		{ID: "1", Content: "Task 1", DueDate: &now},
+		{ID: "2", Content: "Task 2", DueDate: &tomorrow},
+		{ID: "3", Content: "Task 3", DueDate: &nextWeek},
+	}
+
+	if err := store.SaveTasks(tasks); err != nil {
+		t.Fatalf("Failed to save tasks: %v", err)
+	}
+
+	// Test range covering today and tomorrow
+	start := now.Add(-1 * time.Hour)
+	end := tomorrow.Add(1 * time.Hour)
+	
+	results, err := store.GetTasksByDateRange(start, end)
+	if err != nil {
+		t.Fatalf("GetTasksByDateRange failed: %v", err)
+	}
+
+	if len(results) != 2 {
+		t.Errorf("Expected 2 tasks, got %d", len(results))
+	}
+}
+
+func TestGetMealsByDateRange(t *testing.T) {
+	store := setupTestStoreWithMeals(t)
+	defer store.Close()
+
+	now := time.Now()
+	tomorrow := now.Add(24 * time.Hour)
+	
+	meals := []models.Meal{
+		{ID: "1", RecipeName: "Meal 1", Date: now, MealType: "lunch"},
+		{ID: "2", RecipeName: "Meal 2", Date: tomorrow, MealType: "dinner"},
+	}
+
+	if err := store.SaveMeals(meals); err != nil {
+		t.Fatalf("Failed to save meals: %v", err)
+	}
+
+	start := now.Add(-1 * time.Hour)
+	end := now.Add(1 * time.Hour)
+
+	results, err := store.GetMealsByDateRange(start, end)
+	if err != nil {
+		t.Fatalf("GetMealsByDateRange failed: %v", err)
+	}
+
+	if len(results) != 1 {
+		t.Errorf("Expected 1 meal, got %d", len(results))
+	}
+	if results[0].ID != "1" {
+		t.Errorf("Expected meal 1, got %s", results[0].ID)
+	}
+}
+
+func TestGetCardsByDateRange(t *testing.T) {
+	store := setupTestStoreWithCards(t)
+	defer store.Close()
+
+	now := time.Now()
+	tomorrow := now.Add(24 * time.Hour)
+
+	// Create board
+	_, err := store.db.Exec(`INSERT INTO boards (id, name) VALUES (?, ?)`, "board1", "Test Board")
+	if err != nil {
+		t.Fatalf("Failed to create board: %v", err)
+	}
+
+	// Create cards
+	_, err = store.db.Exec(`
+		INSERT INTO cards (id, name, board_id, due_date) 
+		VALUES 
+		(?, ?, ?, ?),
+		(?, ?, ?, ?)
+	`, 
+	"card1", "Card 1", "board1", now,
+	"card2", "Card 2", "board1", tomorrow)
+	if err != nil {
+		t.Fatalf("Failed to insert cards: %v", err)
+	}
+
+	start := now.Add(-1 * time.Hour)
+	end := now.Add(1 * time.Hour)
+
+	results, err := store.GetCardsByDateRange(start, end)
+	if err != nil {
+		t.Fatalf("GetCardsByDateRange failed: %v", err)
+	}
+
+	if len(results) != 1 {
+		t.Errorf("Expected 1 card, got %d", len(results))
+	}
+	if results[0].ID != "card1" {
+		t.Errorf("Expected card1, got %s", results[0].ID)
+	}
+}