refactor(street-level): trim QA, tests, styles and docs

The browser gate is one pass over the remaining flows: rail strip and
expand, coverage with fixtures, the ON/OFF pill, 360° and SINCE filters,
KEY REJECTED, nearest photo with caption, × close, phone fit, keyless
KEY REQUIRED on a second page and no page errors. Panel controls are
pressed through the DOM; pick-point search, line/cone clicks, the
framing-cancel, reload/share and status-route probes, the second
viewport and pointer-settling retries are gone (unit tests cover them).

Tests that pinned constants, copy, CSS or source text, or repeated
another test, are removed or merged. CSS loses an unused variable and
duplicate rules. Docs describe the slimmed feature; unused exports and
the layer's dead setCoverageFilter/refreshCoverage surface are removed.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/tooling/streetLevelQa.test.mjs

@@ -1,15 +1,6 @@
 import assert from 'node:assert/strict';
-import fs from 'node:fs';
 import test from 'node:test';
-import { createApplicationStreetLevel } from '../app/layers/streetLevel.js';
-import {
-  fixtureTile,
-  LEGEND_SWATCHES,
-  isCollapsed,
-  PARK,
-  STRICT_ALLOWED_SKIPS,
-  strictViolations,
-} from '../../scripts/qa-street-level.mjs';
+import { fixtureTile } from '../../scripts/qa-street-level.mjs';
 import {
   answerMapillaryRequest,
   describeCall,
@@ -21,37 +12,6 @@ import {
 } from '../../scripts/fixtures/street-level/mapillaryGraph.mjs';
 import { redact } from '../../scripts/qa-browserEvidence.mjs';
 
-// The press helpers wait for paint; Node has no frames, so a tick stands in.
-globalThis.requestAnimationFrame ??= (callback) =>
-  setTimeout(() => callback(Date.now()), 0);
-
-test('the harness expects the legend the app layer draws', () => {
-  // Any method the layer asks its source for is a no-op: only the legend matters.
-  const source = new Proxy({}, { get: () => () => {} });
-  const layer = createApplicationStreetLevel({
-    sources: { mapillary: source },
-  });
-  assert.equal(layer.getUIState().legend.length, LEGEND_SWATCHES);
-});
-
-test('a panel reads as collapsed only with the collapsed class', () => {
-  assert.equal(isCollapsed(['panel-collapsible', 'collapsed']), true);
-  assert.equal(isCollapsed(['panel-collapsible']), false);
-});
-
-test('the harness only runs its browser flow when executed directly', () => {
-  const source = fs.readFileSync(
-    new URL('../../scripts/qa-street-level.mjs', import.meta.url),
-    'utf8',
-  );
-  assert.match(
-    source,
-    /import\.meta\.url === pathToFileURL\(process\.argv\[1\]\)\.href/,
-  );
-  assert.match(source, /PUPPETEER_EXECUTABLE_PATH/);
-  assert.match(source, /--url/);
-});
-
 test('fixture tiles give the hermetic gate something real to filter', async () => {
   const { decodeCoverageTile } =
     await import('../layers/streetLevel/providers/mapillary/decode.js');
@@ -72,52 +32,6 @@ test('fixture tiles give the hermetic gate something real to filter', async () =
   assert.equal(fixtureTile(8, 1, 1, now).length, 0, 'nor in between');
 });
 
-/* ── The real status route probe ─────────────────────────────────────── */
-
-test('the gate requires the server’s real Mapillary status route', async () => {
-  const { assertRealStatusRoute } =
-    await import('../../scripts/qa-street-level.mjs');
-  const asked = [];
-  const answer = (body, init) => async (url) => {
-    asked.push(url);
-    return typeof body === 'string'
-      ? new Response(body, init)
-      : Response.json(body, init);
-  };
-  assert.deepEqual(
-    await assertRealStatusRoute(
-      'http://localhost:4173',
-      answer({ configured: false }),
-    ),
-    { configured: false },
-  );
-  assert.deepEqual(asked, ['http://localhost:4173/api/mapillary/status']);
-  for (const [why, fetchImpl] of [
-    [
-      'an unregistered route (the API 404)',
-      answer({ error: 'Unknown API route' }, { status: 404 }),
-    ],
-    [
-      'the SPA fallback',
-      answer('<!doctype html><title>GEV</title>', {
-        headers: { 'content-type': 'text/html' },
-      }),
-    ],
-    ['a malformed status', answer({ configured: 'yes' })],
-    [
-      'an unreachable server',
-      async () => {
-        throw new TypeError('fetch failed');
-      },
-    ],
-  ])
-    await assert.rejects(
-      assertRealStatusRoute('http://localhost:4173', fetchImpl),
-      /api\/mapillary\/status/,
-      why,
-    );
-});
-
 /* ── Hermetic photo flow: the photo line and the Graph fixtures ────────── */
 
 test('the photo sequence runs through the parked view, clipped to each tile it crosses', async () => {
@@ -157,9 +71,6 @@ test('the photo sequence runs through the parked view, clipped to each tile it c
     elsewhere.sequences.some((s) => s.id === PHOTO_SEQUENCE_ID),
     false,
   );
-  // The parked camera looks down onto the line.
-  assert.equal(PARK.lon, PHOTO_LINE.lon);
-  assert.ok(PARK.lat > PHOTO_LINE.south && PARK.lat < PHOTO_LINE.north);
 });
 
 test('the fixture photos: one sequence, 360° and flat, close enough for any nearest lookup on the line', () => {
@@ -322,54 +233,3 @@ test('evidence never carries a Mapillary token', () => {
     'loaded with AIza…REDACTED inline',
   );
 });
-
-test('--strict accepts only the documented skips', () => {
-  assert.deepEqual([...STRICT_ALLOWED_SKIPS], ['fixtures only']);
-  assert.deepEqual(
-    strictViolations([
-      { reason: 'fixtures only', label: 'keyless page' },
-      { reason: 'no Mapillary key', label: 'the keyed steps' },
-    ]),
-    [{ reason: 'no Mapillary key', label: 'the keyed steps' }],
-  );
-});
-
-test('the gate saves failure evidence and fails on render-loop errors', () => {
-  const source = fs.readFileSync(
-    new URL('../../scripts/qa-street-level.mjs', import.meta.url),
-    'utf8',
-  );
-  assert.match(source, /saveFailureArtifacts\(/);
-  assert.match(source, /hookRenderErrors\(/);
-  assert.match(source, /readRenderErrors\(/);
-});
-
-test('CI runs the gate hermetically against a production build, strict, with evidence', () => {
-  const ci = fs.readFileSync(
-    new URL('../../.github/workflows/ci.yml', import.meta.url),
-    'utf8',
-  );
-  const job = ci.slice(ci.indexOf('street-level-browser:'));
-  const gate = job.slice(0, job.indexOf('\n  windows-onboarding:'));
-  // The dummy token is baked into the bundle at build time and the preview
-  // server's status route reads it at run time: both steps carry it.
-  assert.match(
-    gate,
-    /MAPILLARY_CLIENT_TOKEN: 'MLY\|0\|qa-fixture'\s+run: npm run build/,
-  );
-  assert.match(
-    gate,
-    /MAPILLARY_CLIENT_TOKEN: 'MLY\|0\|qa-fixture'\s+run: \|\s+npx vite preview --port 4173 --strictPort/,
-  );
-  assert.doesNotMatch(gate, /npx vite --port/);
-  assert.equal(
-    (gate.match(/MAPILLARY_CLIENT_TOKEN: 'MLY\|0\|qa-fixture'/g) || []).length,
-    2,
-  );
-  assert.match(gate, /qa:street-level:fixtures -- --strict/);
-  assert.match(
-    gate,
-    /if: failure\(\)[\s\S]*actions\/upload-artifact@[0-9a-f]{40}/,
-  );
-  assert.match(gate, /path: qa-artifacts\//);
-});