feat: use firm's own templates as style guide for AI-drafted petitions

Belge Şablonları uploads now also get extracted_text (same OCR/office
pipeline as documents), and a new POST /api/drafting/generate builds
a real AI draft from the case's actual data (title, UYAP parties,
latest Dosya Özeti) — if the lawyer picks one of their own templates,
its extracted text is passed as a style/format reference only (the
prompt explicitly forbids copying the template's old case facts).
Dilekçe Hazırlama no longer fakes a draft with setTimeout.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/routes/index.ts

@@ -4,6 +4,7 @@ import chatRoutes from './chat.routes';
 import precedentRoutes from './precedent.routes';
 import caseRoutes from './case.routes';
 import templateRoutes from './template.routes';
+import draftingRoutes from './drafting.routes';
 
 const router = Router();
 
@@ -15,6 +16,7 @@ router.use('/documents', documentRoutes);
 router.use('/chat', chatRoutes);
 router.use('/cases', caseRoutes);
 router.use('/templates', templateRoutes);
+router.use('/drafting', draftingRoutes);
 router.use('/', precedentRoutes); // Keeps the same paths like /api/search-precedents
 
 export default router;