feat(HAI-001): auto-open browser on dashboard start with --no-open flag

packages/cli/src/bin.ts

@@ -15,6 +15,7 @@ Usage:
 Options:
   --port, -p <port>          Dashboard port (default: 4040)
   --engine                   Enable AI engine (auto-specify + execute tasks)
+  --no-open                  Don't auto-open the browser
   --help, -h                 Show this help
 
 Columns: triage, todo, in-progress, in-review, done
@@ -41,7 +42,8 @@ async function main() {
         const pi = portIdx !== -1 ? portIdx : portIdxShort;
         const port = pi !== -1 ? parseInt(args[pi + 1], 10) : 4040;
         const engine = args.includes("--engine");
-        await runDashboard(port, { engine });
+        const open = !args.includes("--no-open");
+        await runDashboard(port, { engine, open });
         break;
       }
 

packages/cli/src/commands/dashboard.ts

@@ -1,8 +1,23 @@
+import { exec } from "child_process";
 import { TaskStore } from "@hai/core";
 import { createServer } from "@hai/dashboard";
 import { TriageProcessor, TaskExecutor, Scheduler } from "@hai/engine";
 
-export async function runDashboard(port: number, opts: { engine?: boolean } = {}) {
+function openBrowser(url: string): void {
+  try {
+    const cmd =
+      process.platform === "darwin"
+        ? `open "${url}"`
+        : process.platform === "win32"
+          ? `start "" "${url}"`
+          : `xdg-open "${url}"`;
+    exec(cmd, () => {});
+  } catch {
+    // Silently ignore — e.g., headless environments
+  }
+}
+
+export async function runDashboard(port: number, opts: { engine?: boolean; open?: boolean } = {}) {
   const cwd = process.cwd();
   const store = new TaskStore(cwd);
   await store.init();
@@ -56,5 +71,9 @@ export async function runDashboard(port: number, opts: { engine?: boolean } = {}
     }
     console.log(`  Press Ctrl+C to stop`);
     console.log();
+
+    if (opts.open !== false) {
+      openBrowser(`http://localhost:${port}`);
+    }
   });
 }