Replace pre-Prism logos with the current Prism brand assets:
- Logo light: HeyGen_Logo_Prism_Black.svg (gradient wordmark for light bg)
- Logo dark: HeyGen_Logo_Prism_White.svg (gradient wordmark for dark bg)
- Favicon: PRISM_ORB.svg (the new Prism orb icon)
- Brand color: #00C4FF (Prism cyan) replacing #7559FF (old purple)
- Update Mermaid diagram colors in determinism.mdx to match
Also includes CI fix: switch from paths-ignore to dorny/paths-filter
with `if:` conditions so required checks auto-pass on docs-only PRs
instead of hanging as "pending".
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace old gradient pinwheel logo with the current HeyGen branding:
- Logo light: flat wordmark with #7559FF purple play icon (black text)
- Logo dark: same wordmark with white text
- Favicon: purple rounded square with white play icon (SVG)
Remove old favicon.ico and gradient icon.svg.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
