fix: resolve workflow linking on resume, update proposals auto-commit, and validation baseline rules

feat: add quick demo login, fix archived knowledge filter and workflow completion state

feat: proposal archive/restore governance, knowledge derived status, documents live polling, yellow archive UI

fix: harden knowledge governance and reconciliation

fix: complete knowledge lifecycle and activity pagination

feat: workflow visualization, knowledge detail, fixtures, restart test, demo docs

feat: complete MCP server - real document upload + full authorization

feat: complete end-to-end platform with all standout behaviors