Release version 1.0.5

Chat Message Admin Improvements: 3 API endpoints, 9 page HTML split, chat-log UI with delete/confirm/pagination/filter/bulk delete

CI/CD Improvements: Go cache fix, lint script, Vite env cleanup, chat start_period 30s, nginx health check, log dump on fail

.gitea/workflows/ci.yml

@@ -36,6 +36,9 @@ jobs:
         with:
           go-version: "1.22"
           cache: true
+          cache-dependency-path: |
+            backend/playout/go.sum
+            backend/chat/go.sum
 
       - name: Validate Playlist Normalization
         run: cd backend/playout && go run src/playlist.go playlist.txt || echo "Validation script not yet complete"