feat: implement dynamic recommended model selection in the Eternity Workstation dashboard

feat: implement Devin-style Agent Workstation Panel with files, logs, settings, and screenshot tabs

Clean up unused declarations in models route to fix Next.js build errors

Robustify eternity POST handler request body parsing

Remove recommended model name modifier to fix model lookup mismatch and API key errors

Fix OpenAI API key crash, implement Eternity Dashboard page, add sidebar menu, and configure API proxy bridge

Configure DeepSeek V4 Flash and Pro in frontend

Add new NIM models + dynamic (Recommended) model logic

Fix typescript error in preferences route

Initial commit for HF Spaces