fix: support multiple enabled Google Task lists and Calendars

- Update Google API interfaces with setters for list/calendar IDs
- Update fetchCalendarEvents and fetchGoogleTasks to use enabled IDs from source_configs
- Update timeline logic tests to reflect interface changes and seed config data
- Ensure dashboard respects user-selected lists from settings

3 files changed, 12 insertions, 0 deletions

diff --git a/internal/api/google_calendar.go b/internal/api/google_calendar.go
index 68d423b..8bb3143 100644
--- a/internal/api/google_calendar.go
+++ b/internal/api/google_calendar.go
@@ -176,6 +176,11 @@ func (c *GoogleCalendarClient) GetEventsByDateRange(ctx context.Context, start,
 	return deduplicateEvents(allEvents), nil
 }
 
+// SetCalendarIDs updates the calendar IDs used by the client
+func (c *GoogleCalendarClient) SetCalendarIDs(ids []string) {
+	c.calendarIDs = ids
+}
+
 // GetCalendarList returns all calendars accessible to the user
 func (c *GoogleCalendarClient) GetCalendarList(ctx context.Context) ([]models.CalendarInfo, error) {
 	list, err := c.srv.CalendarList.List().Do()
diff --git a/internal/api/google_tasks.go b/internal/api/google_tasks.go
index 8a6488e..da3cd3b 100644
--- a/internal/api/google_tasks.go
+++ b/internal/api/google_tasks.go
@@ -175,6 +175,11 @@ func (c *GoogleTasksClient) UncompleteTask(ctx context.Context, listID, taskID s
 	return nil
 }
 
+// SetTaskListID updates the task list ID(s) used by the client
+func (c *GoogleTasksClient) SetTaskListID(id string) {
+	c.tasklistID = id
+}
+
 // GetTaskLists returns all task lists accessible to the user
 func (c *GoogleTasksClient) GetTaskLists(ctx context.Context) ([]models.TaskListInfo, error) {
 	list, err := c.srv.Tasklists.List().Context(ctx).Do()
diff --git a/internal/api/interfaces.go b/internal/api/interfaces.go
index cec64be..99701a1 100644
--- a/internal/api/interfaces.go
+++ b/internal/api/interfaces.go
@@ -39,6 +39,7 @@ type GoogleCalendarAPI interface {
 	GetUpcomingEvents(ctx context.Context, maxResults int) ([]models.CalendarEvent, error)
 	GetEventsByDateRange(ctx context.Context, start, end time.Time) ([]models.CalendarEvent, error)
 	GetCalendarList(ctx context.Context) ([]models.CalendarInfo, error)
+	SetCalendarIDs(ids []string)
 }
 
 // GoogleTasksAPI defines the interface for Google Tasks operations
@@ -48,6 +49,7 @@ type GoogleTasksAPI interface {
 	CompleteTask(ctx context.Context, listID, taskID string) error
 	UncompleteTask(ctx context.Context, listID, taskID string) error
 	GetTaskLists(ctx context.Context) ([]models.TaskListInfo, error)
+	SetTaskListID(id string)
 }
 
 // Ensure concrete types implement interfaces