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/tui/test/key-tester.ts

@@ -0,0 +1,113 @@
+#!/usr/bin/env node
+import { matchesKey } from "../src/keys.js";
+import { ProcessTerminal } from "../src/terminal.js";
+import { type Component, TUI } from "../src/tui.js";
+
+/**
+ * Simple key code logger component
+ */
+class KeyLogger implements Component {
+  private log: string[] = [];
+  private maxLines = 20;
+  private tui: TUI;
+
+  constructor(tui: TUI) {
+    this.tui = tui;
+  }
+
+  handleInput(data: string): void {
+    // Handle Ctrl+C (raw or Kitty protocol) for exit
+    if (matchesKey(data, "ctrl+c")) {
+      this.tui.stop();
+      console.log("\nExiting...");
+      process.exit(0);
+    }
+
+    // Convert to various representations
+    const hex = Buffer.from(data).toString("hex");
+    const charCodes = Array.from(data)
+      .map((c) => c.charCodeAt(0))
+      .join(", ");
+    const repr = data
+      .replace(/\x1b/g, "\\x1b")
+      .replace(/\r/g, "\\r")
+      .replace(/\n/g, "\\n")
+      .replace(/\t/g, "\\t")
+      .replace(/\x7f/g, "\\x7f");
+
+    const logLine = `Hex: ${hex.padEnd(20)} | Chars: [${charCodes.padEnd(15)}] | Repr: "${repr}"`;
+
+    this.log.push(logLine);
+
+    // Keep only last N lines
+    if (this.log.length > this.maxLines) {
+      this.log.shift();
+    }
+
+    // Request re-render to show the new log entry
+    this.tui.requestRender();
+  }
+
+  invalidate(): void {
+    // No cached state to invalidate currently
+  }
+
+  render(width: number): string[] {
+    const lines: string[] = [];
+
+    // Title
+    lines.push("=".repeat(width));
+    lines.push(
+      "Key Code Tester - Press keys to see their codes (Ctrl+C to exit)".padEnd(
+        width,
+      ),
+    );
+    lines.push("=".repeat(width));
+    lines.push("");
+
+    // Log entries
+    for (const entry of this.log) {
+      lines.push(entry.padEnd(width));
+    }
+
+    // Fill remaining space
+    const remaining = Math.max(0, 25 - lines.length);
+    for (let i = 0; i < remaining; i++) {
+      lines.push("".padEnd(width));
+    }
+
+    // Footer
+    lines.push("=".repeat(width));
+    lines.push("Test these:".padEnd(width));
+    lines.push(
+      "  - Shift + Enter (should show: \\x1b[13;2u with Kitty protocol)".padEnd(
+        width,
+      ),
+    );
+    lines.push("  - Alt/Option + Enter".padEnd(width));
+    lines.push("  - Option/Alt + Backspace".padEnd(width));
+    lines.push("  - Cmd/Ctrl + Backspace".padEnd(width));
+    lines.push("  - Regular Backspace".padEnd(width));
+    lines.push("=".repeat(width));
+
+    return lines;
+  }
+}
+
+// Set up TUI
+const terminal = new ProcessTerminal();
+const tui = new TUI(terminal);
+const logger = new KeyLogger(tui);
+
+tui.addChild(logger);
+tui.setFocus(logger);
+
+// Handle Ctrl+C for clean exit (SIGINT still works for raw mode)
+process.on("SIGINT", () => {
+  tui.stop();
+  console.log("\nExiting...");
+  process.exit(0);
+});
+
+// Start the TUI
+tui.start();