chore : bump version to 0.2.3 and add Monolog logging

Add symfony/monolog-bundle with rotating file logs in dev (7 days)
and fingers_crossed + rotating file in prod (30 days).
Deploy script now ensures var/log/ permissions.

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

config/bundles.php

@@ -10,6 +10,7 @@ use Lexik\Bundle\JWTAuthenticationBundle\LexikJWTAuthenticationBundle;
 use Nelmio\CorsBundle\NelmioCorsBundle;
 use Symfony\AI\McpBundle\McpBundle;
 use Symfony\Bundle\FrameworkBundle\FrameworkBundle;
+use Symfony\Bundle\MonologBundle\MonologBundle;
 use Symfony\Bundle\SecurityBundle\SecurityBundle;
 use Symfony\Bundle\TwigBundle\TwigBundle;
 
@@ -24,4 +25,5 @@ return [
     DoctrineFixturesBundle::class       => ['dev' => true, 'test' => true],
     LexikJWTAuthenticationBundle::class => ['all' => true],
     McpBundle::class                    => ['all' => true],
+    MonologBundle::class                => ['all' => true],
 ];

config/packages/monolog.yaml

@@ -0,0 +1,56 @@
+monolog:
+    channels:
+        - deprecation
+
+when@dev:
+    monolog:
+        handlers:
+            main:
+                type: rotating_file
+                path: "%kernel.logs_dir%/%kernel.environment%.log"
+                level: debug
+                max_files: 7
+                channels: ["!event"]
+            console:
+                type: console
+                process_psr_3_messages: false
+                channels: ["!event", "!doctrine", "!console"]
+
+when@test:
+    monolog:
+        handlers:
+            main:
+                type: fingers_crossed
+                action_level: error
+                handler: nested
+                excluded_http_codes: [404, 405]
+                channels: ["!event"]
+            nested:
+                type: stream
+                path: "%kernel.logs_dir%/%kernel.environment%.log"
+                level: debug
+
+when@prod:
+    monolog:
+        handlers:
+            main:
+                type: fingers_crossed
+                action_level: error
+                handler: nested
+                excluded_http_codes: [404, 405]
+                channels: ["!deprecation"]
+                buffer_size: 50
+            nested:
+                type: rotating_file
+                path: "%kernel.logs_dir%/%kernel.environment%.log"
+                level: debug
+                max_files: 30
+            console:
+                type: console
+                process_psr_3_messages: false
+                channels: ["!event", "!doctrine"]
+            deprecation:
+                type: rotating_file
+                channels: [deprecation]
+                path: "%kernel.logs_dir%/deprecations.log"
+                max_files: 7

config/version.yaml

@@ -1,2 +1,2 @@
 parameters:
-    app.version: '0.2.2'
+    app.version: '0.2.3'