fix: regenerate suggested steps after task restart

When the user presses 'R' to restart a task, the QEMU hard reset
produces a new stable screenshot, but the suggested steps were not
regenerated. The stale steps from the previous screenshot were
displayed. Now _generate_steps() is called again with the fresh
screenshot after every restart.

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

Author: abrichr

scripts/record_waa_demos.py

@@ -882,6 +882,16 @@ def _hard_reset_task_env() -> bytes:
                 step_idx = 0
                 print(f"\n  VNC: {vnc_url}")
                 print(f"  Task: {instruction}\n")
+
+                # Re-generate steps from the new stable screenshot
+                print("  Generating suggested steps...")
+                suggested = _generate_steps(before_png, instruction, task_config)
+                print()
+                print("  ┌─ SUGGESTED STEPS ──────────────────────────────")
+                for line in suggested.splitlines():
+                    print(f"  │ {line}")
+                print("  └────────────────────────────────────────────────")
+                print()
                 print("  Task restarted. Continue recording.\n")
                 continue