feat(api): add tags to event and user routes for better categorization

src/app/api/event/route.ts

@@ -8,6 +8,8 @@ import { NextResponse } from 'next/server';
  *   get:
  *     summary: Get all events for the authenticated user
  *     description: Returns all events where the user is an organizer or a participant.
+ *     tags:
+ *      - Event
  *     responses:
  *       200:
  *         description: List of events for the user.
@@ -110,6 +112,8 @@ export const GET = auth(async (req) => {
  *   post:
  *     summary: Create a new event
  *     description: Creates a new event as the authenticated user (organizer).
+ *     tags:
+ *      - Event
  *     requestBody:
  *       required: true
  *       content: