fix: Use R-Kentaren/deepsite-data bucket (not deepsite-data-bucket)

fix: Page load + bucket config storage for .z-ai-config

feat: Bucket storage with local mount + cache + sync

Secure auth + HF bucket storage (batch 1)

feat: HF private dataset storage for users & projects, cloud save/load/delete

feat: multi-file project support, web search, templates, file tree, improved UI

Add landing page, HF OAuth login, multi-provider support with lobehub logos

Update: Real lobehub provider logos, multi-provider support, optimized UI

v3 upgrade: Multi-provider support + optimized UI + real logos