chore: move gateway default port from 4000 to 14242 (#375)

.env.example

@@ -23,8 +23,8 @@ VALKEY_URL=redis://localhost:6380
 
 
 # ─── Gateway ─────────────────────────────────────────────────────────────────
-# TCP port the NestJS/Fastify gateway listens on (default: 4000)
-GATEWAY_PORT=4000
+# TCP port the NestJS/Fastify gateway listens on (default: 14242)
+GATEWAY_PORT=14242
 
 # Comma-separated list of allowed CORS origins.
 # Must include the web app origin in production.
@@ -37,12 +37,12 @@ GATEWAY_CORS_ORIGIN=http://localhost:3000
 BETTER_AUTH_SECRET=change-me-to-a-random-32-char-string
 
 # Public base URL of the gateway (used by BetterAuth for callback URLs)
-BETTER_AUTH_URL=http://localhost:4000
+BETTER_AUTH_URL=http://localhost:14242
 
 
 # ─── Web App (Next.js) ───────────────────────────────────────────────────────
 # Public gateway URL — accessible from the browser, not just the server.
-NEXT_PUBLIC_GATEWAY_URL=http://localhost:4000
+NEXT_PUBLIC_GATEWAY_URL=http://localhost:14242
 
 
 # ─── OpenTelemetry ───────────────────────────────────────────────────────────
@@ -121,12 +121,12 @@ OTEL_SERVICE_NAME=mosaic-gateway
 # ─── Discord Plugin (optional — set DISCORD_BOT_TOKEN to enable) ─────────────
 # DISCORD_BOT_TOKEN=
 # DISCORD_GUILD_ID=
-# DISCORD_GATEWAY_URL=http://localhost:4000
+# DISCORD_GATEWAY_URL=http://localhost:14242
 
 
 # ─── Telegram Plugin (optional — set TELEGRAM_BOT_TOKEN to enable) ───────────
 # TELEGRAM_BOT_TOKEN=
-# TELEGRAM_GATEWAY_URL=http://localhost:4000
+# TELEGRAM_GATEWAY_URL=http://localhost:14242
 
 
 # ─── SSO Providers (add credentials to enable) ───────────────────────────────