feat(ai): Add auto-generated TypeScript models with factory function

- Generate models.generated.ts from models.json with proper types
- Categorize providers: OpenAI (Responses), OpenAI-compatible, Anthropic, Gemini
- Create createLLM() factory with TypeScript overloads for type safety
- Auto-detect base URLs and environment variables for providers
- Support 353 models across 39 providers with full autocompletion
- Exclude generated file from git (rebuilt on npm build)

packages/ai/package.json

@@ -12,9 +12,11 @@
 	"scripts": {
 		"clean": "rm -rf dist",
 		"models": "curl -s https://models.dev/api.json -o src/models.json",
-		"build": "tsc -p tsconfig.build.json && cp src/models.json dist/models.json",
+		"generate-models": "npx tsx scripts/generate-models.ts",
+		"build": "npm run generate-models && tsc -p tsconfig.build.json && cp src/models.json dist/models.json",
 		"check": "biome check --write .",
 		"test": "npx tsx --test test/providers.test.ts",
+		"extract-models": "npx tsx scripts/extract-openai-models.ts",
 		"prepublishOnly": "npm run clean && npm run models && npm run build"
 	},
 	"dependencies": {
@@ -41,5 +43,8 @@
 	},
 	"engines": {
 		"node": ">=20.0.0"
+	},
+	"devDependencies": {
+		"@types/node": "^24.3.0"
 	}
 }