docs: the viewable-asset round, measured per image

README, CHANGELOG (under the untagged 0.10.1), CLAUDE.md and the round's
report. The numbers are the census's, not a summary of them.

- 9 714 image rows over 18 403 files and 67 PDFs, two pinned trees: exactly
  35 rows moved, 9 321 of 9 321 JPEG and PNG rows byte-identical.
- The 16 the round did not go looking for: JPEG 2000 objects out of PDF
  streams, also unreadable by a model, with no stdlib route to convert them.
  They become `asset_not_viewable` -- 16 pictures lost from a bundle, 16
  statements gained that a picture stood there. Stated in the README, the
  CHANGELOG, CLAUDE.md and the report rather than left in a total.
- The accounting gate: R761 0 -> 19 claimed-and-not-found when the conversion
  landed, 0 again after the judge learned its second route; row 6 90 of 111
  -> 110 of 111. The gate's verdict is the same `RED: rows 2, 3, 6` as before
  the round, with row 3's numbers identical.
- `<!-- asset-viewable-media-types: ... -->` is pinned to
  `assets.VIEWABLE_MEDIA_TYPES` by a test, compared as a whole set: a README
  naming three of four would pass every containment check and tell a consumer
  that a format is refused when it is carried.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

CLAUDE.md

@@ -1038,8 +1038,23 @@ and fixtures, never code.
   metadata already lives (original media type, original sha256 in full, new
   sha256), and a converted asset is ONE asset: one file, one pointer, one
   accounting row. Exposure measured with a committed script
-  (`tools/okf_asset_census.py`, one row per image, run from two pinned trees).
-  Report: `docs/2026-09-19-hvert-baaret-bilde-kan-vises.md`.
+  (`tools/okf_asset_census.py`, one row per image, run from two pinned trees
+  over 18 403 files and 67 PDFs, **9 714 image rows**): exactly **35 rows
+  moved**, **9 321 of 9 321** JPEG and PNG rows byte-identical, so not one
+  already-viewable picture changed hands. **16 of the 35 are the finding the
+  round did not go looking for**: JPEG 2000 objects out of PDF streams, a
+  format no model decodes and no stdlib route converts, so they go from
+  carried-and-invisible to `asset_not_viewable` with a line in the concept --
+  a consumer loses 16 pictures and gains 16 statements that a picture was
+  there. **The judge had to move with it and it caught itself**: the gate's
+  `asset_holds` proved a carry by hashing the SOURCE file, which a converted
+  image's bundle cannot satisfy, so R761 went 0 -> **19 claimed and not
+  found** (exactly its RLE8 count) before the judge learned to read the two
+  digests the bundle states and then hash the asset itself; after, R761 is
+  u = 0, d = 0, 0 claimed and not found, 50 asset files, 31 081 carried
+  elements, and the gate's verdict is the same `RED: rows 2, 3, 6` as before
+  the round. Report:
+  `docs/2026-09-19-hvert-baaret-bilde-kan-vises.md`.
 - **Account for content: `okf build --accounting PATH` and its judge
   `python3 tools/okf_accounting_gate.py` (2026-09-17).**
   - The gate was written RED at `0b00de4` and turned GREEN on all six rows by