fix(api): start in production with safe fallbacks instead of crash-looping (502)

A production API with incomplete config threw before listening, so the
container restarted forever and every /api request through nginx was a 502.
The problems are now printed as one loud warning and each gets a safe
fallback:

- JWT_SECRET / JWT_CUSTOMER_SECRET missing, weak or equal: a random key is
  generated once and kept in the Setting table (boot-secrets.ts), so tokens
  survive restarts. A strong value in the environment always wins.
  JwtModule now uses registerAsync so it reads the key after boot fills it.
- OTP_MASTER_CODE: ignored in production unless
  TEST_SERVER_ALLOW_MASTER_CODE=yes.
- CORS_ORIGINS: invalid entries dropped; empty allows every origin.

Tests: boot-secrets.spec, production-checks.spec. 118 tests pass.

سرور با تنظیمات ناقص دیگر مدام ریست نمی‌شود و ورود دوباره کار می‌کند.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/modules/auth/auth.module.ts

@@ -13,17 +13,21 @@ import { JwtAuthGuard, PermissionsGuard } from './guards';
   imports: [
     PrismaModule,
     PassportModule,
-    JwtModule.register({
-      // envOr, not `??`: docker-compose passes every optional variable as
-      // `${X:-}`, so an unconfigured one arrives as "" rather than undefined.
-      // An empty expiresIn makes jsonwebtoken throw on EVERY sign, which 500s
-      // admin login in Docker only. See DEPLOY-02.
-      secret: envOr('JWT_SECRET', 'dev-only-insecure-secret'),
-      // jsonwebtoken types expiresIn as a template-literal union, which a plain
-      // `string` from process.env does not satisfy; the cast is the documented escape.
-      signOptions: {
-        expiresIn: envOr('JWT_EXPIRES_IN', '12h') as `${number}h`,
-      },
+    // registerAsync: read when the app is created, not when this file is
+    // imported, so a JWT_SECRET filled in at boot (boot-secrets.ts) is used.
+    JwtModule.registerAsync({
+      useFactory: () => ({
+        // envOr, not `??`: docker-compose passes every optional variable as
+        // `${X:-}`, so an unconfigured one arrives as "" rather than undefined.
+        // An empty expiresIn makes jsonwebtoken throw on EVERY sign, which 500s
+        // admin login in Docker only. See DEPLOY-02.
+        secret: envOr('JWT_SECRET', 'dev-only-insecure-secret'),
+        // jsonwebtoken types expiresIn as a template-literal union, which a plain
+        // `string` from process.env does not satisfy; the cast is the documented escape.
+        signOptions: {
+          expiresIn: envOr('JWT_EXPIRES_IN', '12h') as `${number}h`,
+        },
+      }),
     }),
   ],
   controllers: [AuthController],