move pi-mono into companion-cloud as apps/companion-os

- Copy all pi-mono source into apps/companion-os/
- Update Dockerfile to COPY pre-built binary instead of downloading from GitHub Releases
- Update deploy-staging.yml to build pi from source (bun compile) before Docker build
- Add apps/companion-os/** to path triggers
- No more cross-repo dispatch needed

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/coding-agent/src/cli/config-selector.ts

@@ -0,0 +1,57 @@
+/**
+ * TUI config selector for `pi config` command
+ */
+
+import { ProcessTerminal, TUI } from "@mariozechner/pi-tui";
+import type { ResolvedPaths } from "../core/package-manager.js";
+import type { SettingsManager } from "../core/settings-manager.js";
+import { ConfigSelectorComponent } from "../modes/interactive/components/config-selector.js";
+import {
+  initTheme,
+  stopThemeWatcher,
+} from "../modes/interactive/theme/theme.js";
+
+export interface ConfigSelectorOptions {
+  resolvedPaths: ResolvedPaths;
+  settingsManager: SettingsManager;
+  cwd: string;
+  agentDir: string;
+}
+
+/** Show TUI config selector and return when closed */
+export async function selectConfig(
+  options: ConfigSelectorOptions,
+): Promise<void> {
+  // Initialize theme before showing TUI
+  initTheme(options.settingsManager.getTheme(), true);
+
+  return new Promise((resolve) => {
+    const ui = new TUI(new ProcessTerminal());
+    let resolved = false;
+
+    const selector = new ConfigSelectorComponent(
+      options.resolvedPaths,
+      options.settingsManager,
+      options.cwd,
+      options.agentDir,
+      () => {
+        if (!resolved) {
+          resolved = true;
+          ui.stop();
+          stopThemeWatcher();
+          resolve();
+        }
+      },
+      () => {
+        ui.stop();
+        stopThemeWatcher();
+        process.exit(0);
+      },
+      () => ui.requestRender(),
+    );
+
+    ui.addChild(selector);
+    ui.setFocus(selector.getResourceList());
+    ui.start();
+  });
+}