docs: Add guide for integrating new Cursor models in AutoMaker

- Created a comprehensive documentation file detailing the steps to add new Cursor CLI models to AutoMaker.
- Included an overview of the necessary types and configurations, along with a step-by-step guide for model integration.
- Provided examples and a checklist to ensure proper implementation and verification of new models in the UI.

libs/types/src/cursor-models.ts

@@ -6,6 +6,7 @@ export type CursorModelId =
   | 'auto' // Auto-select best model
   | 'claude-sonnet-4' // Claude Sonnet 4
   | 'claude-sonnet-4-thinking' // Claude Sonnet 4 with extended thinking
+  | 'composer-1' // Cursor Composer agent model
   | 'gpt-4o' // GPT-4o
   | 'gpt-4o-mini' // GPT-4o Mini
   | 'gemini-2.5-pro' // Gemini 2.5 Pro
@@ -47,6 +48,13 @@ export const CURSOR_MODEL_MAP: Record<CursorModelId, CursorModelConfig> = {
     hasThinking: true,
     tier: 'pro',
   },
+  'composer-1': {
+    id: 'composer-1',
+    label: 'Composer 1',
+    description: 'Cursor Composer agent model optimized for multi-file edits',
+    hasThinking: false,
+    tier: 'pro',
+  },
   'gpt-4o': {
     id: 'gpt-4o',
     label: 'GPT-4o',