gentle-pi v0.3.9

What's changed

• Fixed /gentle:models agent assignment panel usability with large agent lists.
• Kept Continue and ← Back visible within constrained terminal overlay height.
• Added scroll indicators and g / G top/bottom navigation.
• Hardened model panel display against terminal control-sequence injection.
• Rejected unsafe custom model IDs before persistence/frontmatter application.
• Added runtime harness coverage for long lists, height budget, terminal sanitization, Kitty key input, and invalid model IDs.

Verification

• pnpm test
• pnpm publish --dry-run --no-git-checks