feat : init Central project — Symfony 8 + Nuxt 4 + Docker starter

Same architecture as Lesstime: API Platform 4, JWT auth, @malio/layer-ui,
PostgreSQL 16, Docker Compose (ports 8083/3003/5436), dark mode theme.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

config/packages/lexik_jwt_authentication.yaml

@@ -0,0 +1,25 @@
+lexik_jwt_authentication:
+    secret_key: '%env(resolve:JWT_SECRET_KEY)%'
+    public_key: '%env(resolve:JWT_PUBLIC_KEY)%'
+    pass_phrase: '%env(JWT_PASSPHRASE)%'
+    token_ttl: '%env(int:JWT_TOKEN_TTL)%'
+    remove_token_from_body_when_cookies_used: true
+    token_extractors:
+        authorization_header:
+            enabled: false
+        cookie:
+            enabled: true
+            name: BEARER
+        query_parameter:
+            enabled: false
+    set_cookies:
+        BEARER:
+            lifetime: '%env(int:JWT_COOKIE_TTL)%'
+            samesite: lax
+            path: /
+            secure: '%env(bool:JWT_COOKIE_SECURE)%'
+            httpOnly: true
+    api_platform:
+        check_path: /api/login_check
+        username_path: username
+        password_path: password