chore: point dev .mcp.json at packages, add esmole entry

.mcp.json

@@ -3,7 +3,12 @@
     "dbmole": {
       "type": "stdio",
       "command": "npx",
-      "args": ["-y", "tsx", "src/index.ts"]
+      "args": ["-y", "tsx", "packages/dbmole-mcp/src/index.ts"]
+    },
+    "esmole": {
+      "type": "stdio",
+      "command": "npx",
+      "args": ["-y", "tsx", "packages/esmole-mcp/src/index.ts"]
     }
   }
 }