feat: add @automaker/types package

- Extract shared type definitions from server and UI
- Add provider types (ProviderConfig, ExecuteOptions, etc.)
- Add feature types (Feature, FeatureStatus, PlanningMode)
- Add session types (AgentSession, CreateSessionParams)
- Add error types (ErrorType, ErrorInfo)
- Add image types (ImageData, ImageContentBlock)
- Add model constants (CLAUDE_MODEL_MAP, DEFAULT_MODELS)

This package provides centralized type definitions for both server and UI.
No dependencies - pure TypeScript interfaces.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

libs/types/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "@automaker/types",
+  "version": "1.0.0",
+  "description": "Shared type definitions for AutoMaker",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "scripts": {
+    "build": "tsc",
+    "watch": "tsc --watch"
+  },
+  "keywords": ["automaker", "types"],
+  "author": "",
+  "license": "MIT",
+  "devDependencies": {
+    "@types/node": "^22.10.5",
+    "typescript": "^5.7.3"
+  }
+}