feat(templates): add category-based organization

- Added 'category' column to routine_templates table
- Categorized all 12 templates into: Daily Routines, Getting Things Done, Health & Body, Errands
- Added /api/templates/categories endpoint to list unique categories
- Updated /api/templates to support filtering by category query param
- Redesigned templates page with collapsible accordion sections by category
- Categories are sorted in logical order (Daily → Work → Health → Errands)
- All categories expanded by default for easy browsing

api/routes/routine_templates.py

@@ -33,16 +33,39 @@ def register(app):
 
     @app.route("/api/templates", methods=["GET"])
     def api_listTemplates():
-        """List all available templates."""
+        """List all available templates. Optional query param: category"""
         user_uuid = _auth(flask.request)
         if not user_uuid:
             return flask.jsonify({"error": "unauthorized"}), 401
-        templates = postgres.select("routine_templates", order_by="name")
+        
+        # Check for category filter
+        category = flask.request.args.get('category')
+        if category:
+            templates = postgres.select("routine_templates", where={"category": category}, order_by="name")
+        else:
+            templates = postgres.select("routine_templates", order_by="category, name")
+        
         for template in templates:
             steps = postgres.select("routine_template_steps", {"template_id": template["id"]}, order_by="position")
             template["step_count"] = len(steps)
         return flask.jsonify(templates), 200
 
+    @app.route("/api/templates/categories", methods=["GET"])
+    def api_listTemplateCategories():
+        """List all unique template categories."""
+        user_uuid = _auth(flask.request)
+        if not user_uuid:
+            return flask.jsonify({"error": "unauthorized"}), 401
+        
+        # Get distinct categories
+        result = postgres.execute("""
+            SELECT DISTINCT category FROM routine_templates 
+            WHERE category IS NOT NULL 
+            ORDER BY category
+        """)
+        categories = [row["category"] for row in result]
+        return flask.jsonify(categories), 200
+
     @app.route("/api/templates", methods=["POST"])
     def api_createTemplate():
         """Create a new template (admin only in production). Body: {name, description?, icon?}"""