Tracks docs/plans and docs/brainstorms, adds .gitleaks.toml with privacy rules, and runs a history-mode gitleaks scan in CI. Docs and tooling only - no releasable change.
Add Platform Crate Folder Structure section to CLAUDE.md enforcing
consistent subfolder layout (tree/, actions/, input/, system/) across
all platform crates. Update smart AX-first click chain plan with
new file paths reflecting the subfolder structure. Un-ignore
docs/plans/ and docs/brainstorms/ so design documents are tracked.