fix(ingestion): resolve stuck processing documents, auto-extract knowledge assertions, and enrich staging logs

fix(workspaces): fix personal ownership, filter deleted duplicates, and enforce unique workspace names

feat(ci): add strict exit codes for dw validate and safe UUID/name resolution for CI/CD runners

Add DocWeave authentication integration, dynamic workspace selection, search, Dockerfile, and HF Spaces config

feat: layered GitHub-grade UI, dedicated DocWeave auth page, and automated CLI API key sync

fix(mcp): align client convenience methods with DocWeave tool names and API bridge signatures

feat: complete authentication system with dw login/logout/whoami and Web Studio auth modal

feat: add cloud remote MCP transport with Bearer token authentication

feat: add standalone engine fallback and remote MCP support

feat: initial commit for DiffWeave platform