Fix gitea-mcp deployment: add explicit command path

The gitea-mcp-server image has no entrypoint set (null).
Args were being interpreted as the executable name.
Added command: ["/app/gitea-mcp"] to invoke the binary correctly.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

deploy/k8s/gitea-mcp-deployment.yaml

@@ -26,6 +26,7 @@ spec:
       containers:
         - name: gitea-mcp
           image: gitea/gitea-mcp-server:latest
+          command: ["/app/gitea-mcp"]
           args:
             - "-t"
             - "http"