docs: general wording for the example-base document counts

Replace the exact document counts of earlier example bases (and the
per-base counts in the sources-format note) with general wording or
N-of-N in prose, comments and docstrings. Percentages and numerators
stay; no constant, assertion or test data changes.

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

tests/test_inert_identifier_loadbearing.py

@@ -3,7 +3,7 @@
 P7 made stage 0b ``item.code in grounding``: plain containment over ONE concatenated string. P16
 then ran it against a delivered corpus and measured what containment cannot tell apart. The
 falsification arm ``a4-indeksregulering`` proposed a 250 000 NOK saving on a single cost line whose
-code was the knowledge base's OWN NAME — the catalogue designation every one of its 2 756 concept
+code was the knowledge base's OWN NAME — the catalogue designation every one of its concept
 documents carries — and the whole gate said ``validated``: stage 0 was skipped (un-anchored run),
 stage 0b was satisfied by the letterhead, and the checker approved.
 
@@ -18,14 +18,14 @@ measurement (one of three is 33 % and says nothing).
   shortest real identifier is FOUR characters (``12.1``, ``52.1``), so ``N = 3`` sits one below the
   measurement and cannot refuse anything measured;
 * document frequency of every code-shaped token (``generate._IDENTIFIER_FORMS``) in each base:
-  1 692 distinct tokens and NOT ONE reaches 5 % of its base's documents. Highest anywhere 6 of 446
-  (1.35 %); highest that a fasit names 3 of 446 (0.67 %); the base's own name 2 756 of 2 756
-  (100 %). ``A =
+  1 692 distinct tokens and NOT ONE reaches 5 % of its base's documents. Highest anywhere 1.35 %
+  (6 documents); highest that a fasit names 0.67 % (3 documents); the base's own name is in every
+  document (100 %). ``A =
   0.05`` therefore sits 3.7x above the highest real token and 20x below the defect.
 
 **The denominator is NAMED in the refusal**, because Step 5 feeds that reason verbatim into the
 next attempt's prompt: a proposer told only "ungrounded" answers with another token of the same
-kind, while one told "it is in 2 756 of 2 756 documents" has been told what is wrong with it.
+kind, while one told "it is in N of N documents" has been told what is wrong with it.
 
 The arms that need a knowledge base read the package's pinned example bases (and SKIP, with the
 store named, only when a user's own store lacks them); the rule's own algebra, the floor, and the