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/README.md

@@ -17,7 +17,7 @@ and reproducible from that one file.
 |---|---|
 | `two-line-krav.pdf` | One heading plus one requirement row with label and value on the **same line**. That pairing is the property `pdfplumber` was chosen for. |
 | `no-text-layer.pdf` | A structurally valid page with no text operators — the shape a scanned or image-only PDF presents. Must fail fast (`extractor_empty_pdf`), never persist as an empty concept. |
-| `outline-collision.pdf` | **Two bookmarks whose destinations resolve to the same line** — the tree's root node and a front-matter node, both on line 0, which is the shape R761 carries. The marks are collected in a dict keyed on the line index, so without this fixture the second node is dropped with nothing counting it: 2 763 nodes in, 2 762 marks out, `unresolved` at 0. A one-bookmark-per-line fixture cannot see that. |
+| `outline-collision.pdf` | **Two bookmarks whose destinations resolve to the same line** — the tree's root node and a front-matter node, both on line 0, which is the shape a 701-page reference standard carries. The marks are collected in a dict keyed on the line index, so without this fixture the second node is dropped with nothing counting it: 2 763 nodes in, 2 762 marks out, `unresolved` at 0. A one-bookmark-per-line fixture cannot see that. |
 | `three-page-krav.pdf` | Three pages, one line of text each, and **the middle page carries no text operators**. The extractor drops empty pages, so the last page's text belongs to page 3 — which is what separates a page NUMBER from a count of the pages that produced text. Two pages could not tell those apart. |
 
 ## The XML fixtures
@@ -31,9 +31,9 @@ round-trip-symmetric defect.
 
 | Fixture | What it is for |
 |---|---|
-| `sts-mini.xml` | The known-positive. A `<standard>` root with `<sec>` at three nesting levels carrying `<label>`+`<title>`, two lettered points (`a)`, `b)`) with a **label and no title**, one `<table-wrap>` with a label and two rows, `<p>` bodies, a `<list>`, and **one unnumbered section** (`Forord`, `<title>` with no `<label>`) mirroring the single such section in R761. The lettered points are what the 4 954 label-only `<sec>` in that document look like: promoted to headings they would bury its own 2 761. |
-| `sts-empty-label.xml` | A `<sec>` carrying a `<label>` and **nothing else**, between a lettered point that has a body and the next titled section. The label is held as a prefix for a body line that never arrives, so it was overwritten and lost: measured on R761 that is exactly one `x)`, two characters of 1 283 395, ratio 0.999998. An exact invariant does not get to be 0.999998. |
-| `sts-identity.xml` | A document that **states who it is**: exactly one `<std-ident>` with a `<doc-number>` and a `<year>`, one `<title-wrap>` whose `<full>` carries a **comma** (as R761's does, which is why that title cannot be written into a `sources` flow mapping verbatim), and a `<std-ref type="dated">`. Its body carries the `sec-type="spec"` shape the `description` rule reads: a titled `<sec>` whose first spec point has one `<p>`, a second spec point that must never become the description, a titled child with no spec point of its own, and a spec point with **two** `<p>` of which only the first counts. `sts-mini.xml` is the half identity (a `<title-wrap>`, no `<doc-number>`) and `sts-empty-label.xml` the absent one. |
+| `sts-mini.xml` | The known-positive. A `<standard>` root with `<sec>` at three nesting levels carrying `<label>`+`<title>`, two lettered points (`a)`, `b)`) with a **label and no title**, one `<table-wrap>` with a label and two rows, `<p>` bodies, a `<list>`, and **one unnumbered section** (`Forord`, `<title>` with no `<label>`) mirroring the single such section in that reference standard. The lettered points are what the 4 954 label-only `<sec>` in that document look like: promoted to headings they would bury its own 2 761. |
+| `sts-empty-label.xml` | A `<sec>` carrying a `<label>` and **nothing else**, between a lettered point that has a body and the next titled section. The label is held as a prefix for a body line that never arrives, so it was overwritten and lost: measured on the reference standard that is exactly one `x)`, two characters of 1 283 395, ratio 0.999998. An exact invariant does not get to be 0.999998. |
+| `sts-identity.xml` | A document that **states who it is**: exactly one `<std-ident>` with a `<doc-number>` and a `<year>`, one `<title-wrap>` whose `<full>` carries a **comma** (as the reference standard's does, which is why that title cannot be written into a `sources` flow mapping verbatim), and a `<std-ref type="dated">`. Its body carries the `sec-type="spec"` shape the `description` rule reads: a titled `<sec>` whose first spec point has one `<p>`, a second spec point that must never become the description, a titled child with no spec point of its own, and a spec point with **two** `<p>` of which only the first counts. `sts-mini.xml` is the half identity (a `<title-wrap>`, no `<doc-number>`) and `sts-empty-label.xml` the absent one. |
 | `generic-feed.xml` | Known-negative: XML that is **not** STS. It must produce text and ONE plan — never zero, never a crash, and never element names promoted to headings. |
 | `xml-doctype-bomb.xml` | Known-negative, security: a `<!DOCTYPE` with a small nested-entity expansion. It must be refused by `code`, and the test asserts the expansion appears in **no** output, including the error text. Small on purpose — the point is that it is never parsed, not that it detonates. |
 | `xml-malformed.xml` | Known-negative: an unterminated tag must raise a typed `ExtractionError`, not leak `ParseError` and not yield zero concepts in silence. |
@@ -208,13 +208,13 @@ python3 tests/fixtures/accounting/make_accounting_fixtures.py
 
 | Fixture | What it carries that nothing else did |
 |---|---|
-| `topptekst-og-kommentar.docx` | A header, a footer, a comment, an endnote and a **text box** -- and a footnote, a table and a heading, three types the only other docx has at 0. The header says "Utkast - gjelder ikke etter 2026-01-01" and the comment says the requirement does NOT apply in tunnels: two statements that reverse the document's meaning and that the build carries none of. |
+| `topptekst-og-kommentar.docx` | A header, a footer, a comment, an endnote and a **text box** -- and a footnote, a table and a heading, three types the only other docx has at 0. The header says "Utkast - gjelder ikke etter 2026-01-01" and the comment says the requirement does NOT apply in basements: two statements that reverse the document's meaning and that the build carries none of. |
 | `notater-og-skjult.pptx` | A **speaker note** and a **hidden slide** (`show="0"`), plus a table and paragraphs. A hidden slide counted as an ordinary one is indistinguishable from one that is shown. |
 | `skjult-ark-og-formel.xlsx` | A **hidden sheet**, a **formula** (`<f>B2*2</f>`) and a **picture**. The picture is what makes the operator's `.xlsx image` exception exercisable at all: the old fixture had none. |
 | `liste-og-bilde.odt` | A **header and footer** (they live in `styles.xml`, so a reader of `content.xml` cannot see them), an **annotation**, a list and a picture. |
 | `bilde.rtf` | A `\pict` picture: the rtf witness's image count was 0 in its only fixture. |
 | `figur.html` | A picture and a table under `.html`; `side.htm` gained one too, so `.htm` and `.html` each exercise `image`. |
-| `sts-rikt.xml` | A **`mixed-citation`**, an **`mml:math`**, a **`fig` with a caption**, a table with a label, cells, a list item and a footnote -- six STS roles the R761 delivery does not contain at all, which is why the gate's only real corpus could not see the hole in the role map. |
+| `sts-rikt.xml` | A **`mixed-citation`**, an **`mml:math`**, a **`fig` with a caption**, a table with a label, cells, a list item and a footnote -- six STS roles a plain section-and-paragraph document does not carry, so each one of them reaches the role map. |
 
 ### The hand counts
 
@@ -227,9 +227,7 @@ fixture's own bytes -- the XML parts of a zip, the control words of the rtf,
 the objects of the PDF -- never by running the witness and writing down what
 it said.
 
-`witness/prosess-84-sts.twin.json` is the STS document written by hand in the
-publisher's JSON node form (`standardContent`, nodes with `e`/`t`/`x`), so the
-two STS witnesses can be compared on a fixture as well as on R761. Eight of
+Eight of
 the thirteen documents are byte copies of fixtures documented above
 (`image-inbox/`, `k2-office/`, `prisark.xlsx`); the other five
 (`notat.md`, `logg.txt`, `mengder.csv`, `parametre.json`, `side.htm`) are
@@ -238,7 +236,7 @@ heading.
 
 ## What these fixtures do not cover
 
-Structured table recovery. Measured on real Vegnormalene, only 45 of 196
+Structured table recovery. Measured on a real regulatory reference corpus, only 45 of 196
 detected table objects are clean enough to hand to `render_table` unchanged;
 two independent parsers return the same wrong shape, because the breakage is in
 the documents' ruling geometry rather than in either library. PDFs enter this