2026-06-16 session updates:
1. SKILL.md: Added rules #39 (file server), #40 (moved 做视频前确认), #41 (要做就做好), #42 (AI二次创作概念)
2. Created references/ai-video-remix-concept.md — documents user's "改元素" remix approach
3. Updated references/free-ai-image-apis-2026-06-16.md — emphasized User-Agent fix
4. Updated references/ai-image-to-video-pipeline.md — added 8899 file server info
5. Updated references/tiktok-download-technique.md — switched primary download method to 8899