feat: add patch panel runtime sync

cmd/hwlab-patch-panel/main.mjs

@@ -1,20 +1,40 @@
 #!/usr/bin/env node
 import { createMvpTopology } from "../../internal/patchpanel/fixture.mjs";
-import { createPatchPanel } from "../../internal/patchpanel/model.mjs";
+import {
+  createPatchPanelRuntime,
+  createPatchPanelRuntimeFromFile
+} from "../../internal/patchpanel/runtime.mjs";
 import { createHealth } from "../../internal/sim/model.mjs";
 import { createJsonServer, listen, parsePort, readJson } from "../../internal/sim/http.mjs";
 
 const port = parsePort(process.env.PORT, 7301);
+const wiringConfigPath = process.env.HWLAB_WIRING_CONFIG_PATH;
 const topology = createMvpTopology();
-const patchPanel = createPatchPanel({ wiringConfig: topology.wiringConfig });
+const runtime = wiringConfigPath
+  ? await createPatchPanelRuntimeFromFile({ path: wiringConfigPath })
+  : createPatchPanelRuntime({
+      wiringConfig: topology.wiringConfig,
+      configSource: "internal:mvp-topology"
+    });
 
 const routes = new Map();
 
 routes.set("GET /health/live", () =>
   createHealth({ serviceId: "hwlab-patch-panel", name: "hwlab-patch-panel" })
 );
-routes.set("GET /status", () => patchPanel.status());
-routes.set("GET /wiring", () => patchPanel.wiringConfig);
-routes.set("POST /signals/route", async ({ req }) => patchPanel.routeSignal(await readJson(req)));
+routes.set("GET /status", () => runtime.status());
+routes.set("GET /diagnostics", () => runtime.diagnostics());
+routes.set("GET /wiring", () => runtime.wiringConfig);
+routes.set("POST /wiring/apply", async ({ req }) => runtime.applyConfig(await readJson(req)));
+routes.set("POST /wiring/reload", async ({ req }) => {
+  const body = await readJson(req);
+  const path = body.path ?? wiringConfigPath;
+  if (!path) {
+    throw new Error("wiring reload requires body.path or HWLAB_WIRING_CONFIG_PATH");
+  }
+  return runtime.reloadFromFile(path);
+});
+routes.set("POST /signals/route", async ({ req }) => runtime.routeSignal(await readJson(req)));
+routes.set("POST /sync/tick", async ({ req }) => runtime.tick(await readJson(req)));
 
 listen(createJsonServer({ routes }), port);