feat(fake-llm-server): add initial setup for fake LLM server with TypeScript and Express

- Created package.json for dependencies and scripts
- Added tsconfig.json for TypeScript configuration
- Implemented fake stdio MCP server with basic calculator and environment variable printing tools
- Added shell script to run the fake stdio MCP server
- Updated root tsconfig.json for project references and path mapping

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "dyad",
-  "version": "0.30.0-beta.1",
+  "version": "0.31.0-beta.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "dyad",
-      "version": "0.30.0-beta.1",
+      "version": "0.31.0-beta.1",
       "license": "MIT",
       "dependencies": {
         "@ai-sdk/amazon-bedrock": "^3.0.15",