Expression columns (bucket, computed) are defined in cfg.expressions and
are valid pivot axes, but weren't in validCols (raw table columns), so
they were filtered out of group_by/split_by on every layout restore.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- GET /api/versions/:id/log — log entries with row counts via JOIN
- DELETE /api/log/:logid — undo in a transaction (delete fc rows + log entry)
- PATCH /api/log/:logid — update note text
- History button opens a modal: op badge, slice, editable note, row count, Undo per entry
- Undo triggers full Perspective table reload via initViewer
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Fix perspective-click handler to use event filter triples instead of
__ROW_PATH__ — Perspective encodes row position as [col,'==',val] in
detail.config.filter
- buildWhere now skips unrecognised slice keys (e.g. pf_iter) instead of
throwing, so only dimension columns reach the WHERE clause
- Add draggable resize handle on the operation panel (160–480px)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- ui/: React + Vite + Tailwind app (Setup, Baseline, Forecast views, collapsible sidebar, status bar, canvas timeline)
- server.js: serve built UI from public/app/
- package.json: add build script (cd ui && npm run build)
- routes/sources.js: default new col_meta role to 'dimension' instead of 'ignore'
- .gitignore: exclude public/app/ build output
- pf_spec.md: update tech stack, nav, frontend section, and project status to reflect current implementation
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
