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80a676658c
When the self-improvement background review fires after a turn, it runs in a bg thread and emits a ' 💾 <summary>' line to announce what it saved to memory or skills. Two problems made this invisible to users even when the review successfully modified a skill: 1. The print went through `_cprint` (prompt_toolkit's print_formatted_text) on a bg thread while the CLI's PromptSession was live. Direct print_formatted_text races with the input-area redraw and the line can land behind/above the prompt, scrolled off without the user seeing it. 2. The message said only '💾 Skill created.' / '💾 Memory updated' with no indication that the self-improvement loop was the one doing this. Users who did catch the line couldn't tell the background review from some other agent action. Fixes: - `_cprint` now detects when it's called from a non-app thread with a running prompt_toolkit Application, and routes through `run_in_terminal` via `loop.call_soon_threadsafe`. That pauses the input, prints the line above the prompt, and redraws — the normal prompt_toolkit contract for bg-thread output. Direct-print fallback preserved for the no-app / same-thread / import-error paths. Affects every bg-thread emission, not just the review summary (curator summaries and auxiliary failure prints benefit too). - The summary now reads ' 💾 Self-improvement review: <summary>' in both the CLI and the gateway `background_review_callback` path, so the origin is unambiguous. Tests: - New `tests/cli/test_cprint_bg_thread.py` covers all five routing branches (no app, app-not-running, cross-thread schedule, same-thread direct, app-loop-attribute-error, import-error). - New case in `tests/run_agent/test_background_review.py` asserts the attributed prefix shows up in both `_safe_print` and `background_review_callback`. Live E2E: exercised _cprint from a bg thread inside a real Application event loop; confirmed get_app_or_none() sees the app, call_soon_threadsafe schedules run_in_terminal, and the inner _pt_print runs.