chameleon 2.34.2

Fixed

• discover: gitignored files are no longer profiled. Discovery relied on a
  hardcoded directory denylist (node_modules / vendor / dist / ...) and did not
  consult .gitignore, so a gitignored source file in a non-denylisted dir
  (a local secrets.ts, scratch output) had its path and export symbol names
  catalogued in exports_index / conventions. Discovery now runs one batched
  git check-ignore over the candidates and drops the ignored ones. The filter
  reports only files that are BOTH untracked AND match a gitignore rule, so
  tracked source (even matching a loose pattern) and untracked-but-not-ignored
  new files are still profiled; on a non-git tree, or when git is unavailable,
  it fails open and keeps everything. Validated against excalidraw / maybe /
  readthedocs: zero source files excluded (no archetype-coverage change).