docs: publish production adapter wave

[loonghao]

Summary

• publish the bilingual 34-adapter integration catalog and new setup guides
• add approved representative DCC-MCP brand marks and truthful workflow showcases
• align home, ecosystem, Showcase, LLMS, sitemap, and GEO artifacts
• strip a historical absolute local path from existing Houdini PNG metadata without changing pixels

Validation

• npm run docs:build
• 86 localized pages and 34 bilingual DCC control guides
• showcase asset/gallery, prompts/audio, marketplace, LLMS, sitemap, and GEO validation
• changed-file text and image metadata privacy scan
• git diff --check

Evidence boundary

• public copy uses only release-safe summaries and approved showcase art
• THM, local host paths, private Cinema 4D runtime details, and raw validation evidence are excluded