Add question-reframing guidance to CLAUDE.md; commit accumulated project files

- CLAUDE.md: add "Question the question" and "One clarifying question" rules
  to Tone and Interaction — XY problem detection, false premise checks, and
  explicit reframe pattern before answering
- Add claude/ detail-file directory (topic docs referenced from CLAUDE.md)
- Add ABOUT.md, FUTURE.md
- Update memory/, scripts/, settings.yaml with accumulated session changes

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

memory/gotchas-python.md

@@ -0,0 +1,7 @@
+# Python Gotchas
+
+## `sys.exit()` inside bare `except: pass` is swallowed
+
+**Symptom:** A loop that should terminate on first match with `sys.exit(0)` kept iterating and printing multiple lines.
+**Cause:** `sys.exit()` raises `SystemExit`, which is a `BaseException`. A bare `except:` (or `except Exception:`) inside the loop body catches it and continues iteration.
+**Fix:** Use `break` instead of `sys.exit()` when the exit is inside an exception handler, or narrow the except clause to the specific exception you care about (e.g., `except (KeyError, ValueError):`). Never use bare `except:` — it masks `SystemExit`, `KeyboardInterrupt`, and real bugs.