fix(mcp): harden tool schemas and dispatch (#6815)

packages/api/package.json

@@ -51,11 +51,13 @@
     "@homarr/validation": "workspace:^0.1.0",
     "@homarr/workshop": "workspace:^0.1.0",
     "@kubernetes/client-node": "catalog:",
+    "@modelcontextprotocol/server": "catalog:",
     "@tanstack/react-query": "catalog:",
     "@trpc/client": "catalog:",
     "@trpc/react-query": "catalog:",
     "@trpc/server": "catalog:",
     "@trpc/tanstack-react-query": "catalog:",
+    "ajv": "catalog:",
     "lodash.clonedeep": "catalog:",
     "next": "catalog:",
     "react": "catalog:",