Add repairs domain with tickets, line items, batches, and service templates

Full-stack implementation of instrument repair tracking: DB schema with
repair_ticket, repair_line_item, repair_batch, and repair_service_template
tables. Backend services and routes with pagination/search/sort. 20 API
tests covering CRUD, status workflow, line items, and batch operations.
Admin frontend with ticket list, detail with status progression, line item
management, batch list/detail with approval workflow, and new ticket form
with searchable account picker and intake photo uploads.

packages/backend/src/main.ts

@@ -15,6 +15,7 @@ import { productRoutes } from './routes/v1/products.js'
 import { lookupRoutes } from './routes/v1/lookups.js'
 import { fileRoutes } from './routes/v1/files.js'
 import { rbacRoutes } from './routes/v1/rbac.js'
+import { repairRoutes } from './routes/v1/repairs.js'
 import { RbacService } from './services/rbac.service.js'
 
 export async function buildApp() {
@@ -65,6 +66,7 @@ export async function buildApp() {
   await app.register(lookupRoutes, { prefix: '/v1' })
   await app.register(fileRoutes, { prefix: '/v1' })
   await app.register(rbacRoutes, { prefix: '/v1' })
+  await app.register(repairRoutes, { prefix: '/v1' })
 
   // Auto-seed system permissions on startup
   app.addHook('onReady', async () => {