0.3.1 (pre-release): otw forget

Pre-release. Not a stable release and not evidence of effect in real use.

What is new

• otw forget --all --yes deletes every stored correction, the per-session state and the diagnostic log (config.json stays). otw forget --project [DIR] --yes deletes only one working directory's corrections and session state. Without --yes it only shows counts. It never follows links or touches anything outside the Off the Wall folder, and a capture authorized before the deletion cannot append afterwards (tests). Provider-side copies and Claude Code/Codex histories are not affected.
• Documentation brought in line with what was actually checked: one Codex smoke run and one headless Claude Code run; interactive Claude Code use is still unverified. Experiment records 5b and 7 added.

No change to recall behavior. An opt-in lexical gate against recall noise was tried and removed again (it did not generalize to a larger store); see docs/data/exp7/plan-and-log.md.

Plain-language overview: https://toranalytics.github.io/en/otw-what-it-does/
Full changes: CHANGELOG.md. Install: /plugin install off-the-wall --marketplace toranalytics/off-the-wall