fix(cli): improve daemon restart feedback

- runDaemonRestart() now returns Promise<boolean> indicating success
- update command only shows success when restart actually happened
- Fixes missing reasoningLevel type in compactEmbeddedPiSession

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Carl Ulsøe Christensen <carlulsoe@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/cli/update-cli.test.ts

@@ -124,7 +124,7 @@ describe("update-cli", () => {
     };
 
     vi.mocked(runGatewayUpdate).mockResolvedValue(mockResult);
-    vi.mocked(runDaemonRestart).mockResolvedValue();
+    vi.mocked(runDaemonRestart).mockResolvedValue(true);
 
     await updateCommand({ restart: true });