feat: implement 'not_started' task status with validation and UI updates

src/lib/init-db.js

@@ -71,7 +71,7 @@ export default function initializeDatabase() {
       task_template_id INTEGER,
       custom_task_name TEXT,
       custom_max_wait_days INTEGER DEFAULT 0,
-      status TEXT NOT NULL DEFAULT 'pending',
+      status TEXT NOT NULL DEFAULT 'not_started' CHECK(status IN ('not_started', 'pending', 'in_progress', 'completed', 'cancelled')),
       date_added TEXT DEFAULT CURRENT_TIMESTAMP,
       priority TEXT DEFAULT 'normal',
       FOREIGN KEY (project_id) REFERENCES projects(project_id),
@@ -279,6 +279,18 @@ export default function initializeDatabase() {
 		// Column already exists, ignore error
 	}
 
+	// Migration: Update task status system - add 'not_started' status
+	try {
+		// First, update all existing 'pending' tasks to 'not_started'
+		db.exec(`
+			UPDATE project_tasks SET status = 'not_started' WHERE status = 'pending';
+		`);
+		// Note: CHECK constraint will be applied when recreating the table in future migrations
+		// For now, we'll rely on application-level validation
+	} catch (e) {
+		// Migration already done, ignore error
+	}
+
 	// Create indexes for notes user tracking
 	try {
 		db.exec(`