chameleon 2.38.13

Counterexample correctness pass: kill a Python-only false positive in the
off-pattern capture parser. Verified end to end against real profiled repos
(bulletproof-react, forem, py-django-readthedocs, py-flask-flaskbb) through the
real PreToolUse hook, the real teach/unteach/refresh/rename tools, and the real
MCP stdio transport.

Fixed

• The counterexample capture parser flagged non-import Python calls as
  off-patterns. _import_of builds the regex that detects a real import of a
  taught discouraged (over) module. It has two forms: a QUOTED form for TS/Ruby
  (from|import|require|require_relative|load immediately before a quoted
  specifier) and an UNQUOTED form for Python (from x / import x). The unquoted
  form was correctly gated to Python, but the quoted form was never gated away
  from Python, so it also ran against .py files — where load and require are
  ordinary function names, not import keywords. A plain call like
  data = load("requests"), require("axios"), or yield from "csv" therefore
  matched and was captured as a phantom "do NOT write it this way" off-pattern,
  and (since capture keeps the first match in repo scan order) could even shadow a
  genuine import requests elsewhere. The forms are now gated by language so
  neither fires where it does not belong: python uses the unquoted form only,
  known non-Python (TS/Ruby/JS, or any recognized non-Python extension) uses the
  quoted form only, and the unspecified (None) path — the render-time
  witness-suppression check for an unknown language — keeps both, which is
  fail-safe because suppression only ever removes a counterexample. The real
  Python import shapes (import x, from x import y, submodule and boundary
  cases) still capture, and the TS default-import alias guard is unchanged.