v0.1.0-rc.15 — privacy-safe keyboard evidence

Changes

• Record cumulative Cardputer key activity by privacy-safe functional group: navigation, confirm/back, shortcuts, direct entry, and repeat.
• Never retain or emit individual key values.
• P0 now requires positive, internally consistent coverage of every control group and at least one held-key repeat.
• Added unit, evidence-auditor, real demo-log, and negative P0 coverage for the new counters.
• English and Simplified Chinese README pages document the new evidence boundary and remain packaged.

Verification

• Commit: 4a5ad71
• Desktop CI: https://github.com/k1412/cardputerzero-sdr/actions/runs/31803946288
• ARM64 package CI: https://github.com/k1412/cardputerzero-sdr/actions/runs/31803946190
• Package: cardputerzero-sdr_0.1.0-10_arm64.deb
• SHA256: e129b870ec113dc3dfc6bb74dcfb579a1197f480e64ba100747d3d8e799fa530
• Official CardputerZero install-path policy: PASS
• Eight demo states and 60 native 320×170 locale/failure-state screenshots: PASS

Remaining release gate

This is a prerelease. A physical Cardputer Zero 30-minute P0 run and final Store install verification are still required before a stable release.