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>

tests/roadmap/test_github.py

@@ -16,25 +16,25 @@ _ISSUES = [
     {
         "number": 10,
         "title": "Feature en cours",
-        "html_url": "https://github.com/ColinMaudry/decp.info/issues/10",
+        "html_url": "https://github.com/ColinMaudry/colibre/issues/10",
         "labels": [{"name": "en cours"}],
     },
     {
         "number": 20,
         "title": "Feature au vote",
-        "html_url": "https://github.com/ColinMaudry/decp.info/issues/20",
+        "html_url": "https://github.com/ColinMaudry/colibre/issues/20",
         "labels": [{"name": "mis au vote"}],
     },
     {
         "number": 30,
         "title": "Issue sans label pertinent",
-        "html_url": "https://github.com/ColinMaudry/decp.info/issues/30",
+        "html_url": "https://github.com/ColinMaudry/colibre/issues/30",
         "labels": [{"name": "bug"}],
     },
     {
         "number": 40,
         "title": "Une PR déguisée en issue",
-        "html_url": "https://github.com/ColinMaudry/decp.info/pull/40",
+        "html_url": "https://github.com/ColinMaudry/colibre/pull/40",
         "labels": [{"name": "mis au vote"}],
         "pull_request": {"url": "..."},
     },
@@ -49,5 +49,5 @@ def test_fetch_roadmap_issues_filters_by_label(monkeypatch):
     assert result["en_cours"][0] == {
         "number": 10,
         "title": "Feature en cours",
-        "html_url": "https://github.com/ColinMaudry/decp.info/issues/10",
+        "html_url": "https://github.com/ColinMaudry/colibre/issues/10",
     }