feat: unified Claude API key and profile system with z.AI, MiniMax, OpenRouter support (#600)

* feat: add Claude API provider profiles for alternative endpoints

Add support for managing multiple Claude-compatible API endpoints
(z.AI GLM, AWS Bedrock, etc.) through provider profiles in settings.

Features:
- New ClaudeApiProfile type with base URL, API key, model mappings
- Pre-configured z.AI GLM template with correct model names
- Profile selector in Settings > Claude > API Profiles
- Clean switching between profiles and direct Anthropic API
- Immediate persistence to prevent data loss on restart

Profile support added to all execution paths:
- Agent service (chat)
- Ideation service
- Auto-mode service (feature agents, enhancements)
- Simple query service (title generation, descriptions, etc.)
- Backlog planning, commit messages, spec generation
- GitHub issue validation, suggestions

Environment variables set when profile is active:
- ANTHROPIC_BASE_URL, ANTHROPIC_AUTH_TOKEN/API_KEY
- ANTHROPIC_DEFAULT_HAIKU/SONNET/OPUS_MODEL
- API_TIMEOUT_MS, CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC

apps/ui/src/lib/electron.ts

@@ -479,7 +479,8 @@ export interface FeaturesAPI {
     featureId: string
   ) => Promise<{ success: boolean; content?: string | null; error?: string }>;
   generateTitle: (
-    description: string
+    description: string,
+    projectPath?: string
   ) => Promise<{ success: boolean; title?: string; error?: string }>;
 }
 
@@ -706,7 +707,8 @@ export interface ElectronAPI {
       originalText: string,
       enhancementMode: string,
       model?: string,
-      thinkingLevel?: string
+      thinkingLevel?: string,
+      projectPath?: string
     ) => Promise<{
       success: boolean;
       enhancedText?: string;
@@ -3173,7 +3175,7 @@ function createMockFeaturesAPI(): FeaturesAPI {
       return { success: true, content: content || null };
     },
 
-    generateTitle: async (description: string) => {
+    generateTitle: async (description: string, _projectPath?: string) => {
       console.log('[Mock] Generating title for:', description.substring(0, 50));
       // Mock title generation - just take first few words
       const words = description.split(/\s+/).slice(0, 6).join(' ');
@@ -3349,6 +3351,13 @@ export interface Project {
   isFavorite?: boolean; // Pin project to top of dashboard
   icon?: string; // Lucide icon name for project identification
   customIconPath?: string; // Path to custom uploaded icon image in .automaker/images/
+  /**
+   * Override the active Claude API profile for this project.
+   * - undefined: Use global setting (activeClaudeApiProfileId)
+   * - null: Explicitly use Direct Anthropic API (no profile)
+   * - string: Use specific profile by ID
+   */
+  activeClaudeApiProfileId?: string | null;
 }
 
 export interface TrashedProject extends Project {