## Summary
Add historical trend visualization (ASCII sparklines + directional
arrows) to the performance PR report, showing how each metric has moved
over recent commits on main.
## Changes
- **What**: New `sparkline()`, `trendDirection()`, `trendArrow()`
functions in `perf-stats.ts`. New collapsible "Trend" section in the
perf report showing per-metric sparklines, direction indicators, and
latest values. CI workflow updated to download historical data from the
`perf-data` orphan branch and switched to `setup-frontend` action with
`pnpm exec tsx`.
## Review Focus
- The trend section only renders when ≥3 historical data points exist
(gracefully absent otherwise)
- `trendDirection()` uses a split-half mean comparison with ±10%
threshold — review whether this sensitivity is appropriate
- The `git archive` step in `pr-perf-report.yaml` is idempotent and
fails silently if no perf-history data exists yet on the perf-data
branch
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9939-feat-add-trend-visualization-with-sparklines-to-perf-report-3246d73d36508125a6fcc39612f850fe)
by [Unito](https://www.unito.io)
---------
Co-authored-by: GitHub Action <action@github.com>
## Summary
Replaces two separate PR comment workflows (bundle size + performance)
with a single unified report that posts one combined comment per PR.
## Changes
- **What**: New `pr-report.yaml` aggregator workflow triggers on both
`CI: Size Data` and `CI: Performance Report` completions. Finds sibling
workflow runs by PR head SHA. Renders combined report via
`unified-report.js` (shells out to existing `size-report.js` and
`perf-report.ts`). Sections show "pending" or "failed" placeholders when
data is unavailable.
- **Breaking**: Removes `pr-size-report.yaml` and `pr-perf-report.yaml`.
Legacy `<!-- COMFYUI_FRONTEND_SIZE -->` and `<!-- COMFYUI_FRONTEND_PERF
-->` comments are auto-cleaned on first run.
- **Dependencies**: None
## Review Focus
- Concurrency key uses `head_sha` so the later-completing workflow
cancels the earlier report run, ensuring the final comment always has
both sections.
- Stale-run guard: verifies workflow_run SHA matches the live PR head
before posting.
- The `workflow_dispatch` re-trigger path from `pr-size-report.yaml` is
not carried forward — the unified workflow handles re-trigger naturally
via its dual-trigger design.
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9911-feat-unified-PR-report-combining-bundle-size-and-runtime-perf-3236d73d365081baac1cce6f0d9244ac)
by [Unito](https://www.unito.io)
---------
Co-authored-by: GitHub Action <action@github.com>
