feat(backend): add location router with tRPC factory pattern

- Add createLocationRouter with location.update mutation
- Refactor tRPC to factory pattern (createTRPC, createTRPCRouter)
- Protected procedure by default (all routes require auth)
- Replace zod with arktype for input validation
- Wire location router in main() with dependency injection

Co-authored-by: Ona <no-reply@ona.com>

apps/aris-backend/src/server.ts

@@ -2,22 +2,33 @@ import { trpcServer } from "@hono/trpc-server"
 import { Hono } from "hono"
 
 import { registerAuthHandlers } from "./auth/http.ts"
+import { LocationService } from "./location/service.ts"
 import { createContext } from "./trpc/context.ts"
-import { appRouter } from "./trpc/router.ts"
+import { createTRPCRouter } from "./trpc/router.ts"
 
-const app = new Hono()
+function main() {
+	const locationService = new LocationService()
 
-app.get("/health", (c) => c.json({ status: "ok" }))
+	const trpcRouter = createTRPCRouter({ locationService })
 
-registerAuthHandlers(app)
+	const app = new Hono()
 
-app.use(
-	"/trpc/*",
-	trpcServer({
-		router: appRouter,
-		createContext,
-	}),
-)
+	app.get("/health", (c) => c.json({ status: "ok" }))
+
+	registerAuthHandlers(app)
+
+	app.use(
+		"/trpc/*",
+		trpcServer({
+			router: trpcRouter,
+			createContext,
+		}),
+	)
+
+	return app
+}
+
+const app = main()
 
 export default {
 	port: 3000,