Replaces the mascot with the sketched portrait screenshot, center-cropped
to square and masked to a circle with anti-aliased edges so the PNG itself
is rounded (not just CSS). Regenerates logo.png (256), apple-touch-icon
(180), and favicon-32 at the new proportions. Adds .DS_Store to gitignore.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Self-hosted HTML artifact publisher. Single Go binary, SQLite metadata,
HTML on disk. Features: password-protected artifacts, per-artifact expiration,
admin dashboard with view metrics (privacy-preserving daily-salt visitor hash,
sparklines, 30-day SVG chart, top referrers), rate-limited unlock endpoint.
Packaged as a Docker image (two-stage, CGO_ENABLED=0, pure-Go SQLite).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
