Clears the inherited Argilla style debt tracked since the Vue 3 / Nuxt 4
migration (PR #216). All fixes are no-behavior-change:

- no-empty (9): explanatory comments on intentional best-effort catches
- ban-ts-comment (3): @ts-ignore -> @ts-expect-error w/ description
  (typecheck confirms each still suppresses a real error)
- ban-types (8): Function -> () => unknown/void, Object -> object,
  {} -> Record<string, unknown>, Class interface construct signature
- no-empty-function (5): no-op comments; singleton/static-only ctors documented
- no-constant-condition (2): while(true) -> for(;;)
- no-useless-escape (1): /[\{\}]/ -> /[{}]/
- no-namespace (2, config): allowDeclarations for ambient `declare namespace
  CSS` global augmentations (CSS Custom Highlight API)

Gates: eslint 0, nuxi typecheck 0, vitest 777 passed/3 skipped/1 todo.

…generate`

Production builds run cssnano (transitive via @nuxt/vite-builder), whose
postcss-calc lexer can't parse relative-color channel arithmetic, and Dart
Sass emits deprecations for two legacy idioms. All fixes are visual no-ops:

- postcss-calc "Lexical error / Unrecognized text" (BaseButton danger hover):
  `hsl(from var(--color-danger) h s calc(l - 4))` -> `color-mix(in srgb,
  var(--color-danger), black 6%)`. No calc(), so postcss-calc never touches it;
  keeps the var() reference. Also fixes a malformed line (`hsl(var(--color-danger)
  calc(l - 4))` was missing `from`/`h s` -> invalid color, border hover was dead).
- Sass "declarations after nested rules" (8x: BaseSimpleTable, RecordFieldsHeader,
  BaseCollapsablePanel): hoisted own-element declarations above the nested rules /
  emitting mixins. Output unchanged (nested rules target other selectors).
- Sass "/ for division is deprecated" (6x: Workspace/DatasetBreadcrumbDropdown):
  `$base-space / 2` -> `$base-space * 0.5` (identical value, no sass:math import).

Remaining @vueuse/core Rollup annotation warnings are third-party (published
dist), not actionable here.

Verified: `nuxi generate` exit 0 with all above warnings gone; vitest 777
passed/3 skipped/1 todo.

Patch/minor bumps within current majors (no API surface change):
axios 1.17->1.18.1, vue 3.5.38->3.5.39, dompurify 3.1->3.4.11,
happy-dom 20.10.3->20.10.6, js-base64 3.7->3.8.0, papaparse 5.5.3->5.5.4,
tabulator-tables 6.3->6.5.2, @playwright/test 1.44->1.61.1, @vercel/config 0.5.4->0.5.5.
Low-risk dev majors: rimraf 5->6.1.3, cross-env 7->10.1.0 (both dev-only, unused in scripts).

Held: sass (1.77->1.101 would reintroduce @import deprecation warnings cleaned in
39f4828; needs a separate @use migration), typescript (5.9, 6.0 deferred for risk),
vuedraggable (4.1.0 is the Vue 3 line; npm 'latest' 2.24.3 is the old Vue 2 build).

Gates: nuxi typecheck 0, vitest 777 passed/3 skip/1 todo, nuxi build clean.

The frontend-lint hook never actually linted: `bash -c '... "$@"' ` assigns the first
passed filename to $0 (dropping it from "$@"), and pre-commit passes repo-relative paths
(extralit-frontend/foo.vue) which don't resolve after `cd extralit-frontend` -> eslint
reported "No files matching pattern" for every file (and hit EACCES trying to --fix a
read-only generated .nuxt-stale-root file). It only ever "passed" because Tier A/B commits
touched 0-2 lintable files; the 128-file flat-config migration exposed it.

Fix: add a trailing `--` as the $0 placeholder so "$@" keeps every file, and strip the
extralit-frontend/ prefix via ${@#extralit-frontend/} so paths resolve after the cd.
Verified: the hook now lints the correct files (0 errors) instead of erroring on patterns.