test(fixtures): replace sector-specific example material with generic, fictitious examples — green

Every fixture, test document, tool example and document now uses an invented
kitchen-and-baking handbook series, written in this repository. The package's
behaviour is unchanged; src/ changes are comments and help text only.

- Generated fixtures are regenerated from their generators. Their structural
  counts are identical before and after: elements, images, rows, cells,
  headings, bookmarks and the witness inventory's per-document totals. The
  image-inbox and accounting documents are renamed kapittel-84-*.
- tools/okf_accounting_gate.py: the two options that named one real corpus
  each are replaced by a generic, repeatable --corpus PATH with no default.
  Row 5 compares the PDF pair alone. Gate verdict unchanged: RED rows 2, 3, 6.
- tools/okf_witness.py: the STS JSON reader for one publisher's delivery is
  removed, along with its three twins and five tests. The mutation harness
  loses W09.
- docs/: 13 dated reports that documented runs on a retired reference corpus
  are removed, and 40 are neutralized. Dead links are removed, and no new
  dangling path is introduced.
- The synthetic MCP-gate corpus and the residual probe words are neutral.

Valgt: keep the `okf quality --fasit` bar value (the measured fraction, one corpus) and
rewrite only its provenance, because the verdict stays unchanged and the
number names nothing.

Term check with the local list: 0 of 411 tracked files, 0 file names, 0 of
27 binary fixtures. Suite after git add: 2457 passed, 1 skipped. The base
tree had 2460 passed and 2 skipped; five tests went with the JSON reader and
four were added by the term check. ruff, ruff format and mypy --strict src/
are clean.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/fixtures/k2-office/krav-rikt-tekstformat.rtf

@@ -1,11 +1,11 @@
-{\rtf1\ansi\ansicpg1252\deff0{\fonttbl{\f0\froman Times New Roman;}}\pard\sa180\b\fs32 Kravspesifikasjon for tunnelbelysning\b0\fs24\par
-\pard\sa180 Dokumentet samler kravene til belysning i vegtunneler over 500 meter.\par
+{\rtf1\ansi\ansicpg1252\deff0{\fonttbl{\f0\froman Times New Roman;}}\pard\sa180\b\fs32 Kravspesifikasjon for kj\u248 ?kkenbelysning\b0\fs24\par
+\pard\sa180 Dokumentet samler kravene til belysning i storkj\u248 ?kken over 500 kvadratmeter.\par
 \trowd\trgaph108\cellx3000\cellx6000
-\pard\intbl Dokumentnummer:\cell \pard\intbl SVV-2026-0417\cell \row
+\pard\intbl Dokumentnummer:\cell \pard\intbl EKS-2026-0417\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
-\pard\intbl Tittel:\cell \pard\intbl Tunnelbelysning i hovedl\u248 ?pet\cell \row
+\pard\intbl Tittel:\cell \pard\intbl Kj\u248 ?kkenbelysning i hovedsalen\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
-\pard\intbl Ansvarlig avdeling:\cell \pard\intbl Utbyggingsdivisjonen\cell \row
+\pard\intbl Ansvarlig avdeling:\cell \pard\intbl Kj\u248 ?kkendivisjonen\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
 \pard\intbl Fagomr\u229 ?de:\cell \pard\intbl Elektro og belysning\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
@@ -13,21 +13,21 @@
 \trowd\trgaph108\cellx3000\cellx6000
 \pard\intbl Gyldig fra:\cell \pard\intbl 01.03.2026\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
-\pard\intbl Erstatter:\cell \pard\intbl SVV-2024-0188\cell \row
+\pard\intbl Erstatter:\cell \pard\intbl EKS-2024-0188\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
-\pard\intbl Tunnellengde:\cell \pard\intbl 1240 meter\cell \row
+\pard\intbl Salens lengde:\cell \pard\intbl 42 meter\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
-\pard\intbl Dimensjonerende fart:\cell \pard\intbl 80 km/t\cell \row
+\pard\intbl Dimensjonerende gjester:\cell \pard\intbl 80 kuverter\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
-\pard\intbl \u197 ?rsd\u248 ?gntrafikk:\cell \pard\intbl 12400 kj\u248 ?ret\u248 ?y\cell \row
+\pard\intbl \u197 ?rsproduksjon:\cell \pard\intbl 12400 porsjoner\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
 \pard\intbl Terskelluminans:\cell \pard\intbl 145 candela\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
 \pard\intbl Overgangssone:\cell \pard\intbl Tre trinn nedtrapping\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
-\pard\intbl Innerstrekning:\cell \pard\intbl 3,0 candela\cell \row
+\pard\intbl Innerste sone:\cell \pard\intbl 3,0 candela\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
-\pard\intbl Utkj\u248 ?ringssone:\cell \pard\intbl Ingen forsterkning\cell \row
+\pard\intbl Utgangssone:\cell \pard\intbl Ingen forsterkning\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
 \pard\intbl Fargetemperatur:\cell \pard\intbl 4000 kelvin\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
@@ -40,7 +40,7 @@
 \pard\intbl M\u229 ?lemetode:\cell \pard\intbl M\u229 ?ling med luminanskamera\cell \row
 \trowd\trgaph108\cellx3000\cellx6000
 \pard\intbl Avviksh\u229 ?ndtering:\cell \pard\intbl S\u248 ?knad om fravik\cell \row
-\pard\sa180 Luminansmatrise per trafikklasse\par
+\pard\sa180 Luminansmatrise per romklasse\par
 \trowd\trgaph108\cellx3000\cellx6000\cellx9000\cellx12000
 \pard\intbl Sone\cell \pard\intbl Klasse A\cell \pard\intbl Klasse B\cell \pard\intbl Klasse C\cell \row
 \trowd\trgaph108\cellx3000\cellx6000\cellx9000\cellx12000