feat(ares): ARES company lookup with prefill in customer/supplier modals

New /api/admin/ares proxy (browser cannot reach ares.gov.cz - CORS+CSP):
GET /ico/:ico and GET /search?q= map the MFCR REST API to the form
shape (street incl. orientation numbers, "511 01" PSC format, DIC).
Guarded by customers.create/edit + warehouse.manage; token errors map
to Czech messages. Shared AresAdornment button sits in the Nazev and
ICO fields of both modals: ICO mode fills directly, name mode searches
with a result picker. Tested against live ARES (BOHA, ICO 22599851).

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

src/server.ts

@@ -38,6 +38,7 @@ import projectFilesRoutes from "./routes/admin/project-files";
 import warehouseRoutes from "./routes/admin/warehouse";
 import planRoutes from "./routes/admin/plan";
 import aiRoutes from "./routes/admin/ai";
+import aresRoutes from "./routes/admin/ares";
 
 const app = Fastify({
   logger: {
@@ -162,6 +163,7 @@ async function start() {
   await app.register(warehouseRoutes, { prefix: "/api/admin/warehouse" });
   await app.register(planRoutes, { prefix: "/api/admin/plan" });
   await app.register(aiRoutes, { prefix: "/api/admin/ai" });
+  await app.register(aresRoutes, { prefix: "/api/admin/ares" });
 
   // --- Frontend: Vite dev middleware (dev only) ---
   if (!config.isProduction) {