searxng, icecast, photos: full nox modules (ADR 0044/0046)

searxng: a search tool — tools-only, a stateless search has nothing to observe.
icecast: status tool, emits stream.started/.stopped by diffing live mountpoints.
photos: status/albums/recent tools, emits item.added (immich-shaped API, coded
defensively since the stub ships a placeholder image — flagged in the code).
Typecheck; manifests parse.

modules/photos/index.ts

@@ -0,0 +1,40 @@
+// photos' events. The tool runtime imports this once the broker is bound. It watches the library and
+// announces newly added assets.
+//
+// Emits (novox/hq ADR 0046/0047):
+//   module.photos.item.added   — a new asset appeared in the library
+//
+// New assets are found by diffing the recent-assets slice by asset id. Primed silently on the first
+// look, so a restart does not re-announce the whole recent list as freshly added.
+
+import { emit } from "@novox/mesh-sdk/events";
+import { PhotosClient } from "./client.js";
+
+const photos = PhotosClient.fromEnv();
+
+const seen = new Set<string>();
+let primed = false;
+
+async function pollRecent(): Promise<void> {
+  const items = await photos.getRecentAssets(50);
+  for (const asset of items) {
+    if (!seen.has(asset.id)) {
+      if (primed) {
+        await emit("module.photos.item.added", {
+          id: asset.id,
+          fileName: asset.fileName,
+          kind: asset.type,
+          createdAt: asset.createdAt,
+        });
+      }
+      seen.add(asset.id);
+    }
+  }
+  primed = true;
+}
+
+const run = (): void => void pollRecent().catch((err) => console.error(`[photos] ${err}`));
+setInterval(run, 60_000);
+run();
+
+console.log("[photos] watching for newly added assets");