feat(FN-4011): align room input keyboard handlers

Completes Step 1 of mobile touch-focus parity by aligning room input keyboard handlers in ChatView, with a regression test covering mobile room and direct composer touch-focus behavior.

Fusion-Task-Id: FN-4011

packages/desktop/src/__tests__/local-runtime.resolution.test.ts

@@ -0,0 +1,17 @@
+import { describe, expect, it } from "vitest";
+import { LocalRuntimeManager } from "../local-runtime";
+
+describe("desktop runtime package resolution", () => {
+  it("resolves @fusion/core and @fusion/dashboard from desktop vitest project", async () => {
+    const core = await import("@fusion/core");
+    const dashboard = await import("@fusion/dashboard");
+
+    expect(core.TaskStore).toBeTypeOf("function");
+    expect(dashboard.createServer).toBeTypeOf("function");
+  });
+
+  it("can instantiate LocalRuntimeManager without relying on built dist artifacts", () => {
+    const manager = new LocalRuntimeManager({ rootDir: process.cwd() });
+    expect(manager.getStatus().state).toBe("stopped");
+  });
+});