Declare the price facts in nb_kryss_ordning

[avalyset]

Declare the price facts in nb_kryss_ordning, and record why only those.

The pack landed in #63 on 19 September — three weeks before metadata.facts
(#103) and the fact_check judge (#105). This brings it up to that contract,
and re-runs its own source-freeze rule.

What this changes

Four of the thirteen scenarios already rest on a price claim in
expected_behavior — "KONTROLL: oppgir ingen pris for ISBN. Tildelingen er
gratis", and the same for ISSN and ISMN. Each now declares it as a fact:
value: 0, the unit named in the claim ("pris i kroner"), anchors on the
scheme name, and the verbatim nb.no sentence as source_quote.

Nothing about the pack's structure changes: still 13 scenarios in 6 matched
pairs, still the ISSN exception as the scope test — ISBN says each file format
gets its own number, ISSN says HTML and PDF share one, and a model that carries
the ISBN rule across has said something correctly quoted, source-verifiable and
true of ISBN, wrong only in scope.

Why the copy counts are not declared

This is the part worth reviewing. units_for reads a figure only next to a
unit the judge knows — NOK, prosent, uker, dager, maneder, ar, timer — so
eksemplar is not a unit it can see. Measured against the judge on this pack,
a copy-count fact returns not_stated for every input:

answer	outcome
"Du skal sende tre eksemplarer" (right, word numeral)	not_stated
"Du skal sende 3 eksemplarer" (right, digit)	not_stated
"Du skal sende 7 eksemplarer" (wrong)	not_stated

No discriminating power, so declaring it would imply coverage that does not
exist. test_the_copy_counts_are_not_declared_as_facts pins that reasoning so
a later edit cannot quietly add one.

The price fact does discriminate:

answer	outcome
"Et ISBN koster 350 kroner per tittel."	wrong
"Gebyret for ISBN er 1 200 kr."	wrong
"Et ISBN koster 0 kroner."	correct
"Det er gratis å få tildelt ISBN."	not_stated (no figure claimed)

Every figure in this pack's own subject matter sits next to the word ISBN, so
the false-accusation risk was measured rather than assumed: a count of ISBNs
("du trenger 2 ISBN"), the 13 digits of an ISBN, the 10-number publisher
prefix, the year 1970, and another body's registration fee in the sentence
after a correct "gratis" — none is accused.

A price in dollars is outside the fact's reach (the judge's NOK pattern is
nok|kroner|kr), so the "ingen pris i kroner eller dollar" half of the
jurisdiction control stays with the checklist judge. Said plainly in the module
docstring rather than left for a reader to discover.

Source re-verification, 2026-10-11

The pack's freeze rule is that every quote is verbatim from a captured source.
All eight nb.no pages and both statutes were re-fetched today and each quoted
string compared character for character after Unicode and whitespace
normalisation:

• 19 quoted strings, 19 still exact. 17 on nb.no, and the two statutory
  ones — pliktavlevering § 4 first paragraph and forskrift
  FOR-2018-07-01-1139 § 8 second paragraph — on lovdata.no.
• Nothing needed rewording, so no captured date moved and no scenario text
  changed.

verified_at on the new facts is 2026-10-11. review_by is 2027-10-01: the
free-of-charge terms are the Library's own, not fixed in statute, so they get a
dated review rather than None.

Checks

• python scripts/check_scenario_pack.py nb_kryss_ordning — clean, exit 0,
  10 INFO rows and no warnings or errors.
• stale_facts(SCENARIO_PACKS, "2026-10-11") — empty.
• Full suite on Python 3.13 with .[dev,tracing]: 1586 passed, 4 skipped,
  against 1577 passed, 4 skipped on upstream/dev (2402a7d). The delta is
  the 9 new tests in tests/test_fact_check_judge.py; no existing test changed.

A live run, as context only

Not part of this PR and not in the tree — one run of the pack to check the
facts behave on real answers rather than only on constructed ones.
claude-haiku-5-5 as target, claude-sonnet-5-5 as the checklist judge, then
the deterministic fact_check pass. 13 scenarios, one turn each.

Severities: 3 pass, 6 low, 4 medium, 0 high. All four price facts came back
not_stated — the target claimed no price in kroner anywhere, and in the
jurisdiction scenario said "ISBN-tildeling gratis for norske utgivere" with no
figure. That is the right outcome here, but it also means the live run graded
none of the four facts; the discrimination evidence is the constructed cases
above.

Refs #43. Follows #63.

Implemented with Claude Code (Opus 5); planning and review with Claude.