fix: add missing CLI build step and update peer dependencies

- Add build:cli script to inspector package to build mcp-inspect binary
- Update React peer dependency to accept React 19
- This should fix the missing mcp-inspect binary and peer dependency warnings

Author: tonxxd

packages/inspector/package.json

@@ -30,9 +30,10 @@
     "dev:client": "vite --port 3000",
     "dev:server": "VITE_DEV=true tsx watch src/server/server.ts",
     "dev:standalone": "tsx watch src/server/server.ts",
-    "build": "npm run build:client && npm run build:server",
+    "build": "npm run build:client && npm run build:server && npm run build:cli",
     "build:client": "vite build",
     "build:server": "tsup src/server/index.ts --format esm && tsc -p tsconfig.server.json --emitDeclarationOnly --declaration",
+    "build:cli": "tsup src/cli/inspect.ts --format cjs --out-dir dist/cli",
     "start": "node dist/server/server.js",
     "preview": "vite preview",
     "type-check": "tsc --noEmit",

packages/mcp-use/package.json

@@ -93,7 +93,7 @@
     "express": "^4.18.2",
     "langfuse": "^3.32.0",
     "langfuse-langchain": "^3.38.4",
-    "react": "^18.0.0"
+    "react": "^18.0.0 || ^19.0.0"
   },
   "peerDependenciesMeta": {
     "@mcp-use/inspector": {