refactor: rebrand decp.info to colibre #57

- Rename project from decp.info to colibre across all codebase
- Update domain from https://decp.info to https://colibre.fr
- Update GitHub repo references to ColinMaudry/colibre
- Rename deployment files: decpinfo-backup.* → colibre-backup.*
- Update project configuration and documentation
- Rename project assets: decp.info.png → colibre.png
- Update environment variables and constants (DOMAIN_NAME, TOKEN_PREFIX, GITHUB_REPO, etc.)
- Update URLs in all pages, tests, and configuration files
- Keep DECP acronym in text (unchanged per requirements)
- Add rebrand note to README.md

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/utils/__init__.py

@@ -34,15 +34,15 @@ DEVELOPMENT = os.getenv("DEVELOPMENT", "False").lower() == "true"
 # Accès gratuit temporaire à toutes les fonctionnalités d'abonné, le temps que
 # la plateforme de paiement Frisbii valide la réception de paiements.
 TOUS_ABONNES = os.getenv("TOUS_ABONNES", "False").lower() == "true"
-logger = logging.getLogger("decp.info")
+logger = logging.getLogger("colibre")
 
 if DEVELOPMENT:
     logger.setLevel(logging.DEBUG)
 
 DOMAIN_NAME = (
-    "test.decp.info"
+    "test.colibre.fr"
     if os.getenv("DEVELOPMENT", "False").lower() == "true"
-    else "decp.info"
+    else "colibre.fr"
 )