Refactor: Rename entry point to main.ts and update start script.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ai-pipelines",
-  "module": "src/index.ts",
+  "module": "src/main.ts",
   "devDependencies": {
     "@biomejs/biome": "^1.9.4",
     "@types/bun": "latest",
@@ -16,7 +16,7 @@
     "build": "npx tsc",
     "build:go": "npx tsgo",
     "prebuild": "npx rimraf dist",
-    "start": "node dist/index.js",
+    "start": "node dist/main.js",
     "________________ FORMAT AND LINT ________________": "",
     "check": "npx run-p ts:check lint",
     "lint": "biome check",