feat: Discord links, translation sync, iOS login fix, trip copy fix

- Add Discord button to admin GitHub panel and user menu
- Sync all 13 translation files to 1434 keys with native translations
- Fix duplicate keys in Polish translation (pl.ts)
- Fix iOS login race condition: sameSite strict→lax, loadUser sequence counter
- Fix trip copy route: add missing db, Trip, TRIP_SELECT imports

server/src/routes/trips.ts

@@ -3,10 +3,10 @@ import multer from 'multer';
 import path from 'path';
 import fs from 'fs';
 import { v4 as uuidv4 } from 'uuid';
-import { canAccessTrip } from '../db/database';
+import { db, canAccessTrip } from '../db/database';
 import { authenticate, demoUploadBlock } from '../middleware/auth';
 import { broadcast } from '../websocket';
-import { AuthRequest } from '../types';
+import { AuthRequest, Trip } from '../types';
 import { writeAudit, getClientIp, logInfo } from '../services/auditLog';
 import { checkPermission } from '../services/permissions';
 import {
@@ -26,6 +26,7 @@ import {
   verifyTripAccess,
   NotFoundError,
   ValidationError,
+  TRIP_SELECT,
 } from '../services/tripService';
 
 const router = express.Router();

server/src/services/cookie.ts

@@ -7,7 +7,7 @@ export function cookieOptions(clear = false) {
   return {
     httpOnly: true,
     secure,
-    sameSite: 'strict' as const,
+    sameSite: 'lax' as const,
     path: '/',
     ...(clear ? {} : { maxAge: 24 * 60 * 60 * 1000 }), // 24h — matches JWT expiry
   };

server/src/services/tripService.ts

@@ -6,7 +6,7 @@ import { Trip, User } from '../types';
 export const MS_PER_DAY = 86400000;
 export const MAX_TRIP_DAYS = 365;
 
-const TRIP_SELECT = `
+export const TRIP_SELECT = `
   SELECT t.*,
     (SELECT COUNT(*) FROM days d WHERE d.trip_id = t.id) as day_count,
     (SELECT COUNT(*) FROM places p WHERE p.trip_id = t.id) as place_count,