fix: restore task execution broken by add-gemini merge

- handleCreateTask: add legacy "claude" key fallback in input struct so
  old clients and YAML files sending claude:{...} still work
- cli/create: send "agent" key instead of "claude"; add --agent-type flag
- storage/db_test: fix ClaudeConfig → AgentConfig after rename

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

4 files changed, 25 insertions, 16 deletions

diff --git a/internal/api/server.go b/internal/api/server.go
index 3d7cb1e..34e1872 100644
--- a/internal/api/server.go
+++ b/internal/api/server.go
@@ -346,19 +346,25 @@ func (s *Server) handleHealth(w http.ResponseWriter, r *http.Request) {
 
 func (s *Server) handleCreateTask(w http.ResponseWriter, r *http.Request) {
 	var input struct {
-		Name         string            `json:"name"`
-		Description  string            `json:"description"`
-		Agent       task.AgentConfig `json:"agent"`
-		Timeout      string            `json:"timeout"`
-		Priority     string            `json:"priority"`
-		Tags         []string          `json:"tags"`
-		ParentTaskID string            `json:"parent_task_id"`
+		Name         string           `json:"name"`
+		Description  string           `json:"description"`
+		Agent        task.AgentConfig `json:"agent"`
+		Claude       task.AgentConfig `json:"claude"` // legacy alias
+		Timeout      string           `json:"timeout"`
+		Priority     string           `json:"priority"`
+		Tags         []string         `json:"tags"`
+		ParentTaskID string           `json:"parent_task_id"`
 	}
 	if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
 		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid JSON: " + err.Error()})
 		return
 	}
 
+	// Accept legacy "claude" key when "agent" is not provided.
+	if input.Agent.Instructions == "" && input.Claude.Instructions != "" {
+		input.Agent = input.Claude
+	}
+
 	now := time.Now().UTC()
 	t := &task.Task{
 		ID:           uuid.New().String(),
diff --git a/internal/cli/create.go b/internal/cli/create.go
index addd034..e5435d3 100644
--- a/internal/cli/create.go
+++ b/internal/cli/create.go
@@ -15,6 +15,7 @@ func newCreateCmd() *cobra.Command {
 		instructions string
 		workingDir   string
 		model        string
+		agentType    string
 		parentID     string
 		budget       float64
 		timeout      string
@@ -27,14 +28,15 @@ func newCreateCmd() *cobra.Command {
 		Short: "Create a task via the running server",
 		Args:  cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
-			return createTask(serverURL, args[0], instructions, workingDir, model, parentID, budget, timeout, priority, autoStart)
+			return createTask(serverURL, args[0], instructions, workingDir, model, agentType, parentID, budget, timeout, priority, autoStart)
 		},
 	}
 
-	cmd.Flags().StringVar(&serverURL, "server", "http://localhost:8484", "claudomator server URL")
+	cmd.Flags().StringVar(&serverURL, "server", defaultServerURL, "claudomator server URL")
 	cmd.Flags().StringVarP(&instructions, "instructions", "i", "", "task instructions (required)")
 	cmd.Flags().StringVarP(&workingDir, "working-dir", "d", "", "working directory for the task")
-	cmd.Flags().StringVarP(&model, "model", "m", "", "claude model to use")
+	cmd.Flags().StringVarP(&model, "model", "m", "", "model to use")
+	cmd.Flags().StringVar(&agentType, "agent-type", "claude", "agent type: claude, gemini")
 	cmd.Flags().StringVar(&parentID, "parent-id", "", "parent task ID (makes this a subtask)")
 	cmd.Flags().Float64Var(&budget, "budget", 1.0, "max budget in USD")
 	cmd.Flags().StringVar(&timeout, "timeout", "15m", "task timeout")
@@ -45,12 +47,13 @@ func newCreateCmd() *cobra.Command {
 	return cmd
 }
 
-func createTask(serverURL, name, instructions, workingDir, model, parentID string, budget float64, timeout, priority string, autoStart bool) error {
+func createTask(serverURL, name, instructions, workingDir, model, agentType, parentID string, budget float64, timeout, priority string, autoStart bool) error {
 	body := map[string]interface{}{
 		"name":     name,
 		"timeout":  timeout,
 		"priority": priority,
-		"claude": map[string]interface{}{
+		"agent": map[string]interface{}{
+			"type":           agentType,
 			"instructions":   instructions,
 			"project_dir":    workingDir,
 			"model":          model,
diff --git a/internal/cli/create_test.go b/internal/cli/create_test.go
index 22ce6bd..4ce1071 100644
--- a/internal/cli/create_test.go
+++ b/internal/cli/create_test.go
@@ -21,7 +21,7 @@ func TestCreateTask_TimesOut(t *testing.T) {
 	httpClient = &http.Client{Timeout: 50 * time.Millisecond}
 	defer func() { httpClient = orig }()
 
-	err := createTask(srv.URL, "test", "do something", "", "", "", 1.0, "15m", "normal", false)
+	err := createTask(srv.URL, "test", "do something", "", "", "claude", "", 1.0, "15m", "normal", false)
 	if err == nil {
 		t.Fatal("expected timeout error, got nil")
 	}
@@ -61,7 +61,7 @@ func TestCreateTask_MissingIDField_ReturnsError(t *testing.T) {
 	}))
 	defer srv.Close()
 
-	err := createTask(srv.URL, "test", "do something", "", "", "", 1.0, "15m", "normal", false)
+	err := createTask(srv.URL, "test", "do something", "", "", "claude", "", 1.0, "15m", "normal", false)
 	if err == nil {
 		t.Fatal("expected error for missing id field, got nil")
 	}
@@ -77,7 +77,7 @@ func TestCreateTask_NonJSONResponse_ReturnsError(t *testing.T) {
 	}))
 	defer srv.Close()
 
-	err := createTask(srv.URL, "test", "do something", "", "", "", 1.0, "15m", "normal", false)
+	err := createTask(srv.URL, "test", "do something", "", "", "claude", "", 1.0, "15m", "normal", false)
 	if err == nil {
 		t.Fatal("expected error for non-JSON response, got nil")
 	}
diff --git a/internal/storage/db_test.go b/internal/storage/db_test.go
index f737096..e76c00a 100644
--- a/internal/storage/db_test.go
+++ b/internal/storage/db_test.go
@@ -130,7 +130,7 @@ func TestUpdateTaskState_InvalidTransition(t *testing.T) {
 	tk := &task.Task{
 		ID:        "task-invalid",
 		Name:      "InvalidTransition",
-		Claude:    task.ClaudeConfig{Instructions: "test"},
+		Agent:    task.AgentConfig{Instructions: "test"},
 		Priority:  task.PriorityNormal,
 		Retry:     task.RetryConfig{MaxAttempts: 1, Backoff: "linear"},
 		Tags:      []string{},