feat: Add automatic git info updates on ddev start/restart

- Post-start hook captures branch, commit, and PR info
- Writes JSON file to /var/www/html/.git-info.json
- No manual commands required - fully automatic
- Updates on every ddev start/restart

Author: CybotTM

.ddev/config.yaml

@@ -13,3 +13,17 @@ additional_hostnames:
     - v13.nr-textdb
 additional_fqdns: []
 use_dns_when_possible: true
+webimage_extra_dockerfiles:
+  - web-build
+hooks:
+  post-start:
+    - exec-host: |
+        # Capture git info and write to container on every ddev start
+        BRANCH=$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo "unknown")
+        COMMIT=$(git rev-parse --short HEAD 2>/dev/null || echo "unknown")
+        PR=$(gh pr view --json number -q .number 2>/dev/null || echo "unknown")
+
+        # Write git info as JSON to web container
+        ddev exec "printf '{\"branch\":\"%s\",\"commit\":\"%s\",\"pr\":\"%s\"}' '$BRANCH' '$COMMIT' '$PR' > /var/www/html/.git-info.json"
+
+        echo "📋 Git info updated: Branch=$BRANCH, Commit=$COMMIT, PR=$PR"