Verification

What is actually tested for this release, and what is not. Raw evidence lives in docs/verification.json, docs/unit-results.json and scripts/browser/results/*.json.

Test layers

Layer	Command	Scope
Unit/integration	npm test	Headless core/codec tests under packages/*/test
Coverage	npm run test:coverage	Branch coverage — currently below the 90% branch target
Browser smoke	node scripts/browser/browser-smoke.mjs (dev server on port 5173)	Core editing flows in headless Chromium
Browser suites	browser-m4, browser-refinements, browser-codecs, browser-workspace (+ density/font/icons/scrollbars/theme/typography scripts)	Advanced controls, pen simulation, codecs, workspace behaviors

Each browser script writes its *-results.json evidence to scripts/browser/results/. The layout is checked at 1024/1280/1440/1920px widths plus side docking.

External decoding checks

Exported PNG and GIF files were additionally decoded with Pillow (independent decoder) to confirm output correctness. GIF exports report timing, alpha and color conversions.

Current caveats

• Browser checks were run in headless Chromium 141 — Safari/Firefox are not verified.
• Unit tests do not establish complete desktop interoperability (see the compatibility matrix).
• Performance targets are not certified.
• Rotation, blend and profile algorithms are documented contracts; their output is verified by the automated regression suite (see algorithm contracts).