fix(cli): restore interactive installs for ao start prerequisites

packages/cli/src/commands/start.ts

@@ -168,6 +168,28 @@ async function askYesNo(
   }
 }
 
+function gitInstallAttempts(): InstallAttempt[] {
+  if (process.platform === "darwin") {
+    return [{ cmd: "brew", args: ["install", "git"], label: "brew install git" }];
+  }
+  if (process.platform === "linux") {
+    return [
+      { cmd: "sudo", args: ["apt-get", "install", "-y", "git"], label: "sudo apt-get install -y git" },
+      { cmd: "sudo", args: ["dnf", "install", "-y", "git"], label: "sudo dnf install -y git" },
+    ];
+  }
+  if (process.platform === "win32") {
+    return [
+      {
+        cmd: "winget",
+        args: ["install", "--id", "Git.Git", "-e", "--source", "winget"],
+        label: "winget install --id Git.Git -e --source winget",
+      },
+    ];
+  }
+  return [];
+}
+
 function gitInstallHints(): string[] {
   if (process.platform === "darwin") return ["brew install git"];
   if (process.platform === "win32") return ["winget install --id Git.Git -e --source winget"];
@@ -199,6 +221,20 @@ function ghInstallAttempts(): InstallAttempt[] {
   return [];
 }
 
+async function runInteractiveCommand(cmd: string, args: string[]): Promise<void> {
+  await new Promise<void>((resolve, reject) => {
+    const child = spawn(cmd, args, { stdio: "inherit" });
+    child.once("error", reject);
+    child.once("close", (code) => {
+      if (code === 0) {
+        resolve();
+        return;
+      }
+      reject(new Error(`Command failed (${code ?? "unknown"}): ${cmd} ${args.join(" ")}`));
+    });
+  });
+}
+
 async function tryInstallWithAttempts(
   attempts: InstallAttempt[],
   verify: () => Promise<boolean>,
@@ -206,7 +242,7 @@ async function tryInstallWithAttempts(
   for (const attempt of attempts) {
     try {
       console.log(chalk.dim(`  Running: ${attempt.label}`));
-      await exec(attempt.cmd, attempt.args);
+      await runInteractiveCommand(attempt.cmd, attempt.args);
       if (await verify()) return true;
     } catch {
       // Try next installer
@@ -220,6 +256,18 @@ async function ensureGit(context: string): Promise<void> {
   if (hasGit) return;
 
   console.log(chalk.yellow(`⚠ Git is required for ${context}.`));
+  const shouldInstall = await askYesNo("Install Git now?", true, false);
+  if (shouldInstall) {
+    const installed = await tryInstallWithAttempts(
+      gitInstallAttempts(),
+      async () => (await execSilent("git", ["--version"])) !== null,
+    );
+    if (installed) {
+      console.log(chalk.green("  ✓ Git installed successfully"));
+      return;
+    }
+  }
+
   console.error(chalk.red("\n✗ Git is required but is not installed.\n"));
   console.log(chalk.bold("  Install Git manually, then re-run ao start:\n"));
   for (const hint of gitInstallHints()) {
@@ -290,7 +338,7 @@ async function promptInstallAgentRuntime(available: DetectedAgent[]): Promise<De
     const selected = AGENT_INSTALL_OPTIONS[idx - 1];
     console.log(chalk.dim(`  Installing ${selected.label}...`));
     try {
-      await exec(selected.cmd, selected.args);
+      await runInteractiveCommand(selected.cmd, selected.args);
       const refreshed = await detectAvailableAgents();
       if (refreshed.length > 0) {
         console.log(chalk.green(`  ✓ ${selected.label} installed successfully`));
@@ -684,9 +732,23 @@ async function startDashboard(
 }
 
 /**
- * Ensure tmux is available. Called from runStartup() so ALL ao start
+ * Ensure tmux is available — interactive install with user consent if missing.
+ * Called from runStartup() so ALL ao start
  * paths (normal, URL, retry with existing config) are covered.
  */
+function tmuxInstallAttempts(): InstallAttempt[] {
+  if (process.platform === "darwin") {
+    return [{ cmd: "brew", args: ["install", "tmux"], label: "brew install tmux" }];
+  }
+  if (process.platform === "linux") {
+    return [
+      { cmd: "sudo", args: ["apt-get", "install", "-y", "tmux"], label: "sudo apt-get install -y tmux" },
+      { cmd: "sudo", args: ["dnf", "install", "-y", "tmux"], label: "sudo dnf install -y tmux" },
+    ];
+  }
+  return [];
+}
+
 function tmuxInstallHints(): string[] {
   if (process.platform === "darwin") return ["brew install tmux"];
   if (process.platform === "win32") return [
@@ -704,6 +766,18 @@ async function ensureTmux(): Promise<void> {
   if (hasTmux) return;
 
   console.log(chalk.yellow("⚠ tmux is required for runtime \"tmux\"."));
+  const shouldInstall = await askYesNo("Install tmux now?", true, false);
+  if (shouldInstall) {
+    const installed = await tryInstallWithAttempts(
+      tmuxInstallAttempts(),
+      async () => (await execSilent("tmux", ["-V"])) !== null,
+    );
+    if (installed) {
+      console.log(chalk.green("  ✓ tmux installed successfully"));
+      return;
+    }
+  }
+
   console.error(chalk.red("\n✗ tmux is required but is not installed.\n"));
   console.log(chalk.bold("  Install tmux manually, then re-run ao start:\n"));
   for (const hint of tmuxInstallHints()) {