feat: implement frontend for calendar integration (Phase 3 & 4)

## Frontend Implementation

### Meeting Selection & Management
- Created MeetingSelection component for choosing between multiple active meetings
- Shows both active meetings and upcoming calendar events (30 min ahead)
- Displays meeting metadata with privacy controls (owner-only details)
- Supports creation of unscheduled meetings alongside calendar meetings

### Waiting Room
- Added waiting page for users joining before scheduled start time
- Shows countdown timer until meeting begins
- Auto-transitions to meeting when calendar event becomes active
- Handles early joining with proper routing

### Meeting Info Panel
- Created collapsible info panel showing meeting details
- Displays calendar metadata (title, description, attendees)
- Shows participant count and duration
- Privacy-aware: sensitive info only visible to room owners

### ICS Configuration UI
- Integrated ICS settings into room configuration dialog
- Test connection functionality with immediate feedback
- Manual sync trigger with detailed results
- Shows last sync time and ETag for monitoring
- Configurable sync intervals (1 min to 1 hour)

### Routing & Navigation
- New /room/{roomName} route for meeting selection
- Waiting room at /room/{roomName}/wait?eventId={id}
- Classic room page at /{roomName} with meeting info
- Uses sessionStorage to pass selected meeting between pages

### API Integration
- Added new endpoints for active/upcoming meetings
- Regenerated TypeScript client with latest OpenAPI spec
- Proper error handling and loading states
- Auto-refresh every 30 seconds for live updates

### UI/UX Improvements
- Color-coded badges for meeting status
- Attendee status indicators (accepted/declined/tentative)
- Responsive design with Chakra UI components
- Clear visual hierarchy between active and upcoming meetings
- Smart truncation for long attendee lists

This completes the frontend implementation for calendar integration,
enabling users to seamlessly join scheduled meetings from their
calendar applications.

www/app/api/services.gen.ts

@@ -16,6 +16,18 @@ import type {
   V1RoomsDeleteResponse,
   V1RoomsCreateMeetingData,
   V1RoomsCreateMeetingResponse,
+  V1RoomsSyncIcsData,
+  V1RoomsSyncIcsResponse,
+  V1RoomsIcsStatusData,
+  V1RoomsIcsStatusResponse,
+  V1RoomsListMeetingsData,
+  V1RoomsListMeetingsResponse,
+  V1RoomsListUpcomingMeetingsData,
+  V1RoomsListUpcomingMeetingsResponse,
+  V1RoomsListActiveMeetingsData,
+  V1RoomsListActiveMeetingsResponse,
+  V1RoomsJoinMeetingData,
+  V1RoomsJoinMeetingResponse,
   V1TranscriptsListData,
   V1TranscriptsListResponse,
   V1TranscriptsCreateData,
@@ -227,6 +239,146 @@ export class DefaultService {
     });
   }
 
+  /**
+   * Rooms Sync Ics
+   * @param data The data for the request.
+   * @param data.roomName
+   * @returns ICSSyncResult Successful Response
+   * @throws ApiError
+   */
+  public v1RoomsSyncIcs(
+    data: V1RoomsSyncIcsData,
+  ): CancelablePromise<V1RoomsSyncIcsResponse> {
+    return this.httpRequest.request({
+      method: "POST",
+      url: "/v1/rooms/{room_name}/ics/sync",
+      path: {
+        room_name: data.roomName,
+      },
+      errors: {
+        422: "Validation Error",
+      },
+    });
+  }
+
+  /**
+   * Rooms Ics Status
+   * @param data The data for the request.
+   * @param data.roomName
+   * @returns ICSStatus Successful Response
+   * @throws ApiError
+   */
+  public v1RoomsIcsStatus(
+    data: V1RoomsIcsStatusData,
+  ): CancelablePromise<V1RoomsIcsStatusResponse> {
+    return this.httpRequest.request({
+      method: "GET",
+      url: "/v1/rooms/{room_name}/ics/status",
+      path: {
+        room_name: data.roomName,
+      },
+      errors: {
+        422: "Validation Error",
+      },
+    });
+  }
+
+  /**
+   * Rooms List Meetings
+   * @param data The data for the request.
+   * @param data.roomName
+   * @returns CalendarEventResponse Successful Response
+   * @throws ApiError
+   */
+  public v1RoomsListMeetings(
+    data: V1RoomsListMeetingsData,
+  ): CancelablePromise<V1RoomsListMeetingsResponse> {
+    return this.httpRequest.request({
+      method: "GET",
+      url: "/v1/rooms/{room_name}/meetings",
+      path: {
+        room_name: data.roomName,
+      },
+      errors: {
+        422: "Validation Error",
+      },
+    });
+  }
+
+  /**
+   * Rooms List Upcoming Meetings
+   * @param data The data for the request.
+   * @param data.roomName
+   * @param data.minutesAhead
+   * @returns CalendarEventResponse Successful Response
+   * @throws ApiError
+   */
+  public v1RoomsListUpcomingMeetings(
+    data: V1RoomsListUpcomingMeetingsData,
+  ): CancelablePromise<V1RoomsListUpcomingMeetingsResponse> {
+    return this.httpRequest.request({
+      method: "GET",
+      url: "/v1/rooms/{room_name}/meetings/upcoming",
+      path: {
+        room_name: data.roomName,
+      },
+      query: {
+        minutes_ahead: data.minutesAhead,
+      },
+      errors: {
+        422: "Validation Error",
+      },
+    });
+  }
+
+  /**
+   * Rooms List Active Meetings
+   * List all active meetings for a room (supports multiple active meetings)
+   * @param data The data for the request.
+   * @param data.roomName
+   * @returns Meeting Successful Response
+   * @throws ApiError
+   */
+  public v1RoomsListActiveMeetings(
+    data: V1RoomsListActiveMeetingsData,
+  ): CancelablePromise<V1RoomsListActiveMeetingsResponse> {
+    return this.httpRequest.request({
+      method: "GET",
+      url: "/v1/rooms/{room_name}/meetings/active",
+      path: {
+        room_name: data.roomName,
+      },
+      errors: {
+        422: "Validation Error",
+      },
+    });
+  }
+
+  /**
+   * Rooms Join Meeting
+   * Join a specific meeting by ID
+   * @param data The data for the request.
+   * @param data.roomName
+   * @param data.meetingId
+   * @returns Meeting Successful Response
+   * @throws ApiError
+   */
+  public v1RoomsJoinMeeting(
+    data: V1RoomsJoinMeetingData,
+  ): CancelablePromise<V1RoomsJoinMeetingResponse> {
+    return this.httpRequest.request({
+      method: "POST",
+      url: "/v1/rooms/{room_name}/meetings/{meeting_id}/join",
+      path: {
+        room_name: data.roomName,
+        meeting_id: data.meetingId,
+      },
+      errors: {
+        422: "Validation Error",
+      },
+    });
+  }
+
   /**
    * Transcripts List
    * @param data The data for the request.