Enable tududi MCP endpoint

tududi gates its MCP server behind FF_ENABLE_MCP. Without it /api/mcp
answers 403 "MCP feature is not enabled" even with a valid token, so
Claude Code cannot reach the task board.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

apps/tududi/deployment.yaml

@@ -31,6 +31,10 @@ spec:
             # X-Forwarded-* to build correct URLs and mark cookies secure
             - name: TUDUDI_TRUST_PROXY
               value: "true"
+            # the MCP server is behind a feature flag; without it /api/mcp
+            # answers 403 "MCP feature is not enabled" even with a valid token
+            - name: FF_ENABLE_MCP
+              value: "true"
             - name: TUDUDI_USER_EMAIL
               valueFrom:
                 secretKeyRef: