fix: address PR comments and complete prompt centralization

- Fix inline type imports in defaults.ts (move to top-level imports)
- Update ideation-service.ts to use centralized prompts from settings
- Update generate-title.ts to use centralized prompts
- Update validate-issue.ts to use centralized prompts
- Clean up validation-schema.ts (prompts already centralized)
- Minor server index cleanup

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

apps/server/src/routes/features/index.ts

@@ -4,6 +4,7 @@
 
 import { Router } from 'express';
 import { FeatureLoader } from '../../services/feature-loader.js';
+import type { SettingsService } from '../../services/settings-service.js';
 import { validatePathParams } from '../../middleware/validate-paths.js';
 import { createListHandler } from './routes/list.js';
 import { createGetHandler } from './routes/get.js';
@@ -15,7 +16,10 @@ import { createDeleteHandler } from './routes/delete.js';
 import { createAgentOutputHandler, createRawOutputHandler } from './routes/agent-output.js';
 import { createGenerateTitleHandler } from './routes/generate-title.js';
 
-export function createFeaturesRoutes(featureLoader: FeatureLoader): Router {
+export function createFeaturesRoutes(
+  featureLoader: FeatureLoader,
+  settingsService?: SettingsService
+): Router {
   const router = Router();
 
   router.post('/list', validatePathParams('projectPath'), createListHandler(featureLoader));
@@ -35,7 +39,7 @@ export function createFeaturesRoutes(featureLoader: FeatureLoader): Router {
   router.post('/delete', validatePathParams('projectPath'), createDeleteHandler(featureLoader));
   router.post('/agent-output', createAgentOutputHandler(featureLoader));
   router.post('/raw-output', createRawOutputHandler(featureLoader));
-  router.post('/generate-title', createGenerateTitleHandler());
+  router.post('/generate-title', createGenerateTitleHandler(settingsService));
 
   return router;
 }

apps/server/src/routes/features/routes/generate-title.ts

@@ -9,6 +9,8 @@ import type { Request, Response } from 'express';
 import { createLogger } from '@automaker/utils';
 import { CLAUDE_MODEL_MAP } from '@automaker/model-resolver';
 import { simpleQuery } from '../../../providers/simple-query-service.js';
+import type { SettingsService } from '../../../services/settings-service.js';
+import { getPromptCustomization } from '../../../lib/settings-helpers.js';
 
 const logger = createLogger('GenerateTitle');
 
@@ -26,16 +28,9 @@ interface GenerateTitleErrorResponse {
   error: string;
 }
 
-const SYSTEM_PROMPT = `You are a title generator. Your task is to create a concise, descriptive title (5-10 words max) for a software feature based on its description.
-
-Rules:
-- Output ONLY the title, nothing else
-- Keep it short and action-oriented (e.g., "Add dark mode toggle", "Fix login validation")
-- Start with a verb when possible (Add, Fix, Update, Implement, Create, etc.)
-- No quotes, periods, or extra formatting
-- Capture the essence of the feature in a scannable way`;
-
-export function createGenerateTitleHandler(): (req: Request, res: Response) => Promise<void> {
+export function createGenerateTitleHandler(
+  settingsService?: SettingsService
+): (req: Request, res: Response) => Promise<void> {
   return async (req: Request, res: Response): Promise<void> => {
     try {
       const { description } = req.body as GenerateTitleRequestBody;
@@ -61,11 +56,15 @@ export function createGenerateTitleHandler(): (req: Request, res: Response) => P
 
       logger.info(`Generating title for description: ${trimmedDescription.substring(0, 50)}...`);
 
+      // Get customized prompts from settings
+      const prompts = await getPromptCustomization(settingsService, '[GenerateTitle]');
+      const systemPrompt = prompts.titleGeneration.systemPrompt;
+
       const userPrompt = `Generate a concise title for this feature:\n\n${trimmedDescription}`;
 
       // Use simpleQuery - provider abstraction handles all the streaming/extraction
       const result = await simpleQuery({
-        prompt: `${SYSTEM_PROMPT}\n\n${userPrompt}`,
+        prompt: `${systemPrompt}\n\n${userPrompt}`,
         model: CLAUDE_MODEL_MAP.haiku,
         cwd: process.cwd(),
         maxTurns: 1,