EPBDS-16211 H1: delete the dead weight, 26 files

[AlexSamBY]

Replaces #52, which conflicted after #51 was squash-merged: this is the same single H1 commit, rebased onto master. Identical diff — 32 files, +61 −3150.

What went

12 orphan components	Avatar, Badge, Carousel, Collapse, ErrorContent, ErrorTable, FloatNumber, ImageSwatch, MenuButton, Square, TabList, Tags
10 LESS files	the whole src/style/unused/ tree
4 icomoon artifacts	demo.html, demo-files/, Read Me.txt
2 functions	formatTime, toHours in time.js, with the imports that existed only for them

What deliberately stayed

The engine TabList (pages/main/components/TabList.js) — mapper.js:33 resolves it, and it is not interchangeable with the pack copy: both import './Tabs', and those two Tabs differ by ~100 lines. Swapping them would have silently regressed tab behaviour. The pack Tabs.js also stays, so H6's duplicate pair is only half resolved.

icomoon's selection.json and style.css — selection.json is the project file you re-upload to regenerate the icon set, the only round-trip path back to it. Dead to every build, but its loss is not recoverable the way a demo page's is.

FIELD.TYPE.DATE, which H1 also lists — delete it, or give it a view: 'Date' branch? That is an owners' call, so it was left alone.

One decision this forced

ErrorTable could not go alone (ErrorContent imported it), and it was also the last in-repo caller passing inverted/striped to Table. SUPPORTED-PROPS.md recorded that step 1 deferred their fate to exactly this deletion.

They are kept. Both are genuinely styled (table:not(.as-layout).inverted, table.striped tr:nth-child(2n)), Table.js still destructures them, and a consumer meta can still set them. Dropping a supported prop because our own last caller went away would be a breaking change bought for nothing. The generated "Attributes at the call sites" table no longer lists them — which is correct, since that table reports what the codebase passes, not what the component accepts — so wrapper-prop-curation.js now says so explicitly.

Verified before deleting

One agent per target, each asked to refute that its target was safe: mapper registration, the components barrel, the published entry, every import spelling, tracked metas, docs, schema, CSS, the sibling checkouts. src/style/unused/ was cleared by compiling index.less through the repo's own less-options and reading less's resolved import list (44 files, none under unused/) — not by grepping basenames, which would have been wrong here: avatar.less and carousel.less exist elsewhere too.

Measured after

	before	after
suites / tests	166 / 2539	166 / 2527
statements	94.83%	97.04%
branches	90.19%	94.06%
functions	93.28%	96.88%
lines	95.36%	97.76%

The −12 tests are exactly the two time suites (−9, −3); a per-suite diff confirms no other suite's count moved. Coverage thresholds green. static/all.css sha256 unchanged at dcdb0a40a6d8ee79… — deleting unused/ and the icomoon page touched no byte a consumer downloads. lint:js, lint:css, css:fixture:check, both docs checks, build-lib and build-css all green.

Side effects worth naming

• moment is now imported nowhere in src/core/utils/ — progress on §9.7-F2.
• Workstream A loses 4 class components and 3 UNSAFE_* sites (29/14 → 26/12, re-measured).
• The third function-component defaultProps site is resolved by deletion.

The plan is updated in the same commit — 28 places closed or corrected, including the orphan counts, which are now a historical record rather than a list of files to go looking for.

🤖 Generated with Claude Code