Agent Navi v0.4.0

• Add a self-contained Gemini CLI extension sharing the portable runtime.
• Add persistent event mute/unmute, status, clip/event listing, and attention/default presets.
• Bundle a model-invocable Navi control skill for supported agents.
• Separate Claude ready notifications from input requests while preserving defaults. Existing input_required overrides apply to questions; configure ready_for_input separately for idle notifications.
• Recover malformed cooldown timestamps and write them atomically.
• Make previews bypass event cooldown and report overlap suppression.
• Reject incomplete bundled pet files instead of reporting a false matching state.
• Add an ffplay fallback for Linux audio.
• Validate installed npm packages and packaged Gemini hooks in CI.
• Add tag/version-checked releases, stable download assets, and release-based Pages builds.
• Generate site version links and preview every animation and look direction.
• Add contributor guidance and refresh completed design documentation.
• Archive the original pet byte-for-byte; remove the isolated moving-left fragment and enlarge the 16 directional frames 1.5x with a reproducible lossless repair.
• Add a validated nine-row web atlas with separate download and upload guidance.
• Restyle the site, social card, and README with self-hosted OFL fonts and a forest-night palette; add an SVG favicon, touch icon, and README banner.
• Add a Day theme that follows the operating system or a saved toggle, a themed 404 page, and accessibility fixes: WCAG AA contrast in both themes, announced animation states, a keyboard-scrollable compatibility table, and screen-reader-friendly labels.
• Ship every README preview image in the package and verify them in the package check.
• Compare regenerated previews by pixel in releases, since PNG bytes vary with each platform's zlib.