docs(sw): AI rules, example E, tests and evidence for the popup / footer / header changes

AI documents (packages/sw/ai)
- SWPopupPropertyRow, SWSelect, SWSlider in the catalog, usage table,
  composition patterns and design rules; SWViewerSlider noted as SWSlider panel.
- Rule: the SWHeader layer / color dropdowns are header-only; popup layer /
  color / line style use SWPopupPropertyRow (property window pickers).
- Footer rules: gra-border-orange surfaces, Model / Layout text unchanged on
  hover, side button hover, vacant surface limited to the slot row.
- Header rules: measured More growing behavior (hysteresis fix A).
- Example E (custom popup) uses SWPopupPropertyRow, SWSelect and SWSlider
  instead of SWHeaderLayerMenu in the popup.

Tests (packages/sw/tests)
- New footer-popup-viewer-refinement.browser.mjs (47 checks: footer stories,
  hover / gradient / tab text / pocket, popup pickers vs property window rows,
  SWSlider, unit SWSelect parity, Popup B, header trace, viewer title art).
- integrated-popup / integrated-consumer: popup pickers and SWSelect instead of
  the header dropdown and the HM UI Select (same overlay / callback / Escape
  requirements).
- integrated-improvement: default sections skip the retired SW/Tool story
  ('tool' still runs by name); storybook-inventory / simplification record the
  retired footer IDs; theme-inheritance widths use sw-footer--full-footer.

Docs (docs/sw)
- sw-footer-popup-viewer-refinement-2026-10-20.md: causes, decisions (the
  first-pass "header dropdown in popup" change is marked withdrawn),
  verification and baseline failures; evidence footer-popup-viewer-refinement-qa
  (47/47). Footer mapping document updated for the removed sections.

Baseline failures (unchanged by this work): home-menu-integration 1,
storybook-unused-removal 5 (10-19 snapshot comparisons), range-cross-browser and
property-panel-comparison open stories retired on 2026-10-19.

packages/sw/tests/integrated-improvement.browser.mjs

@@ -9,7 +9,9 @@ import http from 'node:http'
 const runtime = process.env.SW_RUNTIME_MODULES ?? 'C:/Users/user/.cache/codex-runtimes/codex-primary-runtime/dependencies/node/node_modules'
 const require = createRequire(path.join(runtime, 'index.js'))
 const out = path.resolve(process.argv[2] ?? 'docs/sw/integrated-improvement-qa/verify')
-const sections = process.argv.slice(3).length ? process.argv.slice(3) : ['options', 'tool', 'popup']
+// 'tool' opens sw-tool--tool-buttons, retired 2026-10-19 (storybook-inventory retiredToolIds): historical, run it only
+// by name against an old build. The default runs the sections whose Stories exist (2026-10-20).
+const sections = process.argv.slice(3).length ? process.argv.slice(3) : ['options', 'popup']
 await mkdir(out, { recursive: true })
 const root = path.resolve('storybook-static'), mime = { '.html': 'text/html', '.js': 'text/javascript', '.css': 'text/css', '.json': 'application/json', '.svg': 'image/svg+xml', '.png': 'image/png', '.ttf': 'font/ttf', '.woff2': 'font/woff2' }
 const server = http.createServer(async (req, res) => { try { const p = new URL(req.url, 'http://localhost').pathname, file = path.resolve(root, '.' + decodeURIComponent(p === '/' ? '/index.html' : p)); if (path.relative(root, file).startsWith('..')) return res.writeHead(403).end(); res.setHeader('Content-Type', mime[path.extname(file)] ?? 'application/octet-stream'); res.end(await readFile(file)) } catch { res.writeHead(404).end() } })