feat(tui): print resume command on exit

tui/scripts/conpty_smoke.py

@@ -13,6 +13,7 @@ from typing import Any
 ROOT = Path(__file__).resolve().parents[1]
 ENTER_ALT_SCREEN = "\x1b[?1049h"
 LEAVE_ALT_SCREEN = "\x1b[?1049l"
+RESUME_COMMAND = "Resume with: nanobot agent --session websocket:resume-chat"
 
 
 def _read(process: Any, timeout: float) -> str:
@@ -71,6 +72,7 @@ def main() -> int:
         "NANOBOT_TUI_WS_URL": "ws://127.0.0.1:9/ws",
         "NANOBOT_TUI_API_URL": "",
         "NANOBOT_TUI_API_TOKEN": "",
+        "NANOBOT_TUI_CHAT_ID": "resume-chat",
         "NANOBOT_TUI_MODEL": "test/model",
         "NANOBOT_TUI_WORKSPACE": r"C:\nanobot-tui-conpty",
         "NANOBOT_TUI_VERSION": "test",
@@ -111,6 +113,7 @@ def main() -> int:
         process.write("exit\r")
         output.append(_wait_for(process, LEAVE_ALT_SCREEN, 8))
         exit_code = _wait_for_exit(process, 8)
+        output.append(_read(process, 0.5))
     finally:
         if process.isalive():
             process.close(force=True)
@@ -123,7 +126,11 @@ def main() -> int:
             raise AssertionError(f"TUI did not render committed input {glyph!r}")
     if "Traceback" in text or "Task exception was never retrieved" in text:
         raise AssertionError("TUI emitted an exception during shutdown")
-    print("ConPTY smoke test passed: Unicode input, resize, and terminal restoration")
+    if text.count(RESUME_COMMAND) != 1:
+        raise AssertionError("TUI did not print exactly one reusable session command")
+    if text.index(RESUME_COMMAND) < text.index(LEAVE_ALT_SCREEN):
+        raise AssertionError("TUI printed the session command before restoring the terminal")
+    print("ConPTY smoke test passed: Unicode input, resize, restoration, and session resume")
     return 0