Update seatmap configuration

apps/edr-passenger-api/src/modules/seats/seats.controller.ts

@@ -12,19 +12,19 @@ export class SeatsController {
 
   // ── Seat Map ──────────────────────────────────────────────────────────────
   @Get('seatmap/:scheduleId')
-  @ApiOperation({ 
-    summary: 'Get seat map with real-time availability by class',
-    description: `Returns seat map for a schedule with availability by seat class:
-- Economy Regular
-- Economy Bed
-- VIP Bed
-
-Shows seat status: AVAILABLE, BOOKED, HELD, BLOCKED`
+  @ApiOperation({
+    summary: 'Get seat map filtered by coach type',
+    description: `Returns all coaches of the given coachTypeId assigned to the schedule, each with their full seat list and real-time availability. Origin and destination are derived from the schedule. Omit coachTypeId to get all coaches.`
   })
   @ApiParam({ name: 'scheduleId', description: 'TrainSchedule UUID' })
-  @ApiQuery({ name: 'coachId', required: false, description: 'Filter by coach UUID' })
-  @ApiResponse({ status: 200, description: 'Returns coaches with seats and seat class info' })
-  getSeatMap(@Param('scheduleId') scheduleId: string, @Query('coachId') coachId?: string) { return this.service.getSeatMap(scheduleId, coachId); }
+  @ApiQuery({ name: 'coachTypeId', required: false, description: 'Filter by CoachType UUID — returns all coaches of that type (e.g. all Economy coaches)' })
+  @ApiResponse({ status: 200, description: 'List of coaches of the given type with their seats and availability' })
+  getSeatMap(
+    @Param('scheduleId') scheduleId: string,
+    @Query('coachTypeId') coachTypeId?: string,
+  ) {
+    return this.service.getSeatMap(scheduleId, coachTypeId);
+  }
 
   // ── Hold / Release ────────────────────────────────────────────────────────
   @Get('holds')