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>

symfony.lock

@@ -172,6 +172,18 @@
     "symfony/mcp-bundle": {
         "version": "v0.6.0"
     },
+    "symfony/monolog-bundle": {
+        "version": "4.0",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "3.7",
+            "ref": "1b9efb10c54cb51c713a9391c9300ff8bceda459"
+        },
+        "files": [
+            "config/packages/monolog.yaml"
+        ]
+    },
     "symfony/property-info": {
         "version": "8.0",
         "recipe": {