Merge origin/main into feat/cursor-cli

Merges latest main branch changes including:
- MCP server support and configuration
- Pipeline configuration system
- Prompt customization settings
- GitHub issue comments in validation
- Auth middleware improvements
- Various UI/UX improvements

All Cursor CLI features preserved:
- Multi-provider support (Claude + Cursor)
- Model override capabilities
- Phase model configuration
- Provider tabs in settings

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

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

apps/server/src/routes/enhance-prompt/index.ts

@@ -6,17 +6,19 @@
  */
 
 import { Router } from 'express';
+import type { SettingsService } from '../../services/settings-service.js';
 import { createEnhanceHandler } from './routes/enhance.js';
 
 /**
  * Create the enhance-prompt router
  *
+ * @param settingsService - Settings service for loading custom prompts
  * @returns Express router with enhance-prompt endpoints
  */
-export function createEnhancePromptRoutes(): Router {
+export function createEnhancePromptRoutes(settingsService?: SettingsService): Router {
   const router = Router();
 
-  router.post('/', createEnhanceHandler());
+  router.post('/', createEnhanceHandler(settingsService));
 
   return router;
 }

apps/server/src/routes/enhance-prompt/routes/enhance.ts

@@ -11,8 +11,9 @@ import { createLogger } from '@automaker/utils';
 import { resolveModelString } from '@automaker/model-resolver';
 import { CLAUDE_MODEL_MAP, isCursorModel } from '@automaker/types';
 import { ProviderFactory } from '../../../providers/provider-factory.js';
+import type { SettingsService } from '../../../services/settings-service.js';
+import { getPromptCustomization } from '../../../lib/settings-helpers.js';
 import {
-  getSystemPrompt,
   buildUserPrompt,
   isValidEnhancementMode,
   type EnhancementMode,
@@ -119,9 +120,12 @@ async function executeWithCursor(prompt: string, model: string): Promise<string>
 /**
  * Create the enhance request handler
  *
+ * @param settingsService - Optional settings service for loading custom prompts
  * @returns Express request handler for text enhancement
  */
-export function createEnhanceHandler(): (req: Request, res: Response) => Promise<void> {
+export function createEnhanceHandler(
+  settingsService?: SettingsService
+): (req: Request, res: Response) => Promise<void> {
   return async (req: Request, res: Response): Promise<void> => {
     try {
       const { originalText, enhancementMode, model } = req.body as EnhanceRequestBody;
@@ -164,8 +168,19 @@ export function createEnhanceHandler(): (req: Request, res: Response) => Promise
 
       logger.info(`Enhancing text with mode: ${validMode}, length: ${trimmedText.length} chars`);
 
-      // Get the system prompt for this mode
-      const systemPrompt = getSystemPrompt(validMode);
+      // Load enhancement prompts from settings (merges custom + defaults)
+      const prompts = await getPromptCustomization(settingsService, '[EnhancePrompt]');
+
+      // Get the system prompt for this mode from merged prompts
+      const systemPromptMap: Record<EnhancementMode, string> = {
+        improve: prompts.enhancement.improveSystemPrompt,
+        technical: prompts.enhancement.technicalSystemPrompt,
+        simplify: prompts.enhancement.simplifySystemPrompt,
+        acceptance: prompts.enhancement.acceptanceSystemPrompt,
+      };
+      const systemPrompt = systemPromptMap[validMode];
+
+      logger.debug(`Using ${validMode} system prompt (length: ${systemPrompt.length} chars)`);
 
       // Build the user prompt with few-shot examples
       // This helps the model understand this is text transformation, not a coding task