feat: v0.7.0

[kiloloop-release]

What's New in v0.7.0

Added

• Frontend/UI task category with separate content-patch (15/25/40) and page-build (40/60/90) bands.
• App-development task category with a generic cold L-style prior and app/UI human-comparison multiplier.
• 3-round review mode with a 35 minute additive review tier.
• METR threshold entries for Opus 4.7 (current) and GPT-5.5; opus_4_x retained as a forward-compatible alias.
• Opt-in structured audit logging via AGENT_ESTIMATE_AUDIT_* environment variables, emitting secret-scrubbed JSON events to stdout, stderr, or a file.

Changed

• Research-grounded brainstorms now route to the research band instead of the flat brainstorm band.
• Codex model-key alias now resolves to the GPT-5.5 METR threshold; GPT-5.4 remains available.
• Corrected the Codex skill install path in skills/estimate/README.md to .codex/skills/....
• Version bumped to v0.7.0 across package, plugin, action, issue template, and tests.
• Claude runtime /estimate skill refreshed to v0.7.0 parity with the Codex slice (frontend/app_dev types, 3-round review mode, refreshed METR keys).
• claude / claude_opus model-key aliases now resolve to opus_4_7 (Opus 4.7); opus_4_6 retained for backward compatibility.

This release also brings the repository structure up to date: a Makefile for dev shortcuts, a scripts/preflight.py pre-PR check, and the multi-runtime skills/estimate/ layout (shared spec + per-runtime Claude/Codex slices).