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/icecast/tools/index.ts

@@ -0,0 +1,26 @@
+// icecast's tools (novox/hq ADR 0044), importing icecast's own client.
+
+import { registerModuleTools, type ToolDefinition } from "@novox/mesh-sdk/tools";
+import { IcecastClient } from "../client.js";
+
+export function getIcecastTools(icecast: IcecastClient): ToolDefinition[] {
+  return [
+    {
+      name: "icecast_status",
+      description: "Icecast streaming status: live mountpoints, each with its listener count, plus the total.",
+      input: {},
+      run: async () => {
+        const status = await icecast.getStatus();
+        return status;
+      },
+    },
+  ];
+}
+
+registerModuleTools("icecast", (env) => {
+  try {
+    return getIcecastTools(IcecastClient.fromEnv(env));
+  } catch {
+    return [];
+  }
+});