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/server/src/services/ideation-service.ts

@@ -41,7 +41,7 @@ import type { FeatureLoader } from './feature-loader.js';
 import { createChatOptions, validateWorkingDirectory } from '../lib/sdk-options.js';
 import { resolveModelString } from '@automaker/model-resolver';
 import { stripProviderPrefix } from '@automaker/types';
-import { getPromptCustomization } from '../lib/settings-helpers.js';
+import { getPromptCustomization, getActiveClaudeApiProfile } from '../lib/settings-helpers.js';
 
 const logger = createLogger('IdeationService');
 
@@ -223,6 +223,13 @@ export class IdeationService {
       // Strip provider prefix - providers need bare model IDs
       const bareModel = stripProviderPrefix(modelId);
 
+      // Get active Claude API profile for alternative endpoint configuration
+      const { profile: claudeApiProfile, credentials } = await getActiveClaudeApiProfile(
+        this.settingsService,
+        '[IdeationService]',
+        projectPath
+      );
+
       const executeOptions: ExecuteOptions = {
         prompt: message,
         model: bareModel,
@@ -232,6 +239,8 @@ export class IdeationService {
         maxTurns: 1, // Single turn for ideation
         abortController: activeSession.abortController!,
         conversationHistory: conversationHistory.length > 0 ? conversationHistory : undefined,
+        claudeApiProfile, // Pass active Claude API profile for alternative endpoint configuration
+        credentials, // Pass credentials for resolving 'credentials' apiKeySource
       };
 
       const stream = provider.executeQuery(executeOptions);
@@ -678,6 +687,13 @@ export class IdeationService {
       // Strip provider prefix - providers need bare model IDs
       const bareModel = stripProviderPrefix(modelId);
 
+      // Get active Claude API profile for alternative endpoint configuration
+      const { profile: claudeApiProfile, credentials } = await getActiveClaudeApiProfile(
+        this.settingsService,
+        '[IdeationService]',
+        projectPath
+      );
+
       const executeOptions: ExecuteOptions = {
         prompt: prompt.prompt,
         model: bareModel,
@@ -688,6 +704,8 @@ export class IdeationService {
         // Disable all tools - we just want text generation, not codebase analysis
         allowedTools: [],
         abortController: new AbortController(),
+        claudeApiProfile, // Pass active Claude API profile for alternative endpoint configuration
+        credentials, // Pass credentials for resolving 'credentials' apiKeySource
       };
 
       const stream = provider.executeQuery(executeOptions);