queue_claim_check: the docstring's pinned census is compared, not trusted

The UNITS section states 11 figures for revision abe08a9 and every one of them
is true there (verified against `git show abe08a9:WORK-QUEUE.md`). Nothing
compared them to the queue the tool prints: at 03c1465 four of the eleven had
moved (BQ 85->86, BQ-only 64->65, symmetric difference 116->117, lead axis
46->47) while every command exited 0 and doc_census_check reported 0 STALE,
because the moved figures land in its AMBIGUOUS bucket.

--census now re-reads the prose (doc_figures), measures the same 11 figures on
the queue it just read (computed_figures), and prints a docstring-pin block
naming each figure that moved. Exit code unchanged: a queue that grows is not a
fault. Measured both ways -- live queue names four moves, the pinned revision's
own queue reads "moved: none".

Cells 20 -> 24 (4 doc-pin). Mutant returning [] from doc_drift: 22/24, rc 1,
naming doc pin 2 and 4. Landed: 24/24, rc 0. The tool's plain report is
byte-identical before and after (diff rc 0). Gate 5/5, sweep 15/15, doc-census
0 STALE, ruff clean.

docs/queue-index.md

@@ -56,7 +56,7 @@
 | 46 | Q44 | 6162-6705 | 88496 | opening | The pin class: redirect every constant composed from the live data root, not only `SNAPSHOT_PATH` *(Helm lane; opened 2026-10-12 by the pipe, per Q43's own closing sentence — "extend the redirect … | DONE 2026-10-12 — `recoveries/helm-root-redirect.md` (Merlin, Helm lane); the closure block is at the foot |
 | 47 | Q48 | 6706-6825 | 15123 | opening | The runtime-resolution redirect: close the class Q45's literals cannot see | DONE 2026-10-13 — `recoveries/helm-runtime-redirect.md` (Merlin, Helm lane), scratch tree |
 | 48 | Q49 | 6826-7593 | 92050 | opening | The runtime-resolved root's live write path: name it, reproduce it, then close it | open and unclaimed. Opened by the pipe 2026-10-13 |
-| 49 | Q45 | 7594-10196 | 426096 | opening | §9 follow-on — the home-directory channel *(Helm lane; Merlin)* | -- |
+| 49 | Q45 | 7594-10211 | 432512 | opening | §9 follow-on — the home-directory channel *(Helm lane; Merlin)* | -- |
 
 ## Ids with no `## ` heading
 
@@ -71,7 +71,7 @@ Opened as records inside another section. `line` is the record's own opening lin
 | Q50 | 6990 | 6990 | 46 | Q49 | BULLET+BOLD | BOLD-LEAD |
 | Q51 | 7106 | 7106 | 37 | Q49 | BULLET+BOLD | BOLD-LEAD |
 | Q52 | 7167 | 7167 | 90 | Q49 | BULLET+BOLD | BOLD-LEAD |
-| Q53 | 7292 | 7246 | 131 | Q49 | BULLET+BOLD | BOLD-LEAD |
+| Q53 | 7292 | 7246 | 133 | Q49 | BULLET+BOLD | BOLD-LEAD |
 | Q63 | 9918 | 9909 | 17 | Q45 | BULLET+BOLD | BOLD-LEAD |
 
 **Not in this document.** Ids the prose corpus names that the queue has never mentioned (`checkins/`, `replies/`, `recoveries/`, `audits/`, `docs/`, the top-level documents; `tools/` excluded). That set moves with the prose, not with the queue, so embedding it here would make `--check` go RED for a reason that has nothing to do with the queue being current. It is reported on demand: `python3 tools/queue_index.py --outside`.
@@ -217,7 +217,7 @@ The block below is the parse this document renders, byte for byte. `--check` com
    "form": "BOLD-LEAD",
    "id": "Q53",
    "line": 7292,
-   "refs": 131,
+   "refs": 133,
    "section": "Q49",
    "shape": "BULLET+BOLD"
   },
@@ -236,9 +236,9 @@ The block below is the parse this document renders, byte for byte. `--check` com
   "end_line": 8,
   "line": 1
  },
- "queue_bytes": 1318357,
- "queue_lines": 10196,
- "queue_sha256": "ed243f9a78a8f39d06d4a33fd4d5ef496e1916bf6a196e147b71efe0d0bfa711",
+ "queue_bytes": 1324773,
+ "queue_lines": 10211,
+ "queue_sha256": "cee2c14daae5639938a132b8925db55b85acd2cab812bac0eab31c596de78cd1",
  "sections": [
   {
    "bytes": 3139,
@@ -817,11 +817,11 @@ The block below is the parse this document renders, byte for byte. `--check` com
    "title": "The runtime-resolved root's live write path: name it, reproduce it, then close it"
   },
   {
-   "bytes": 426096,
-   "end_line": 10196,
+   "bytes": 432512,
+   "end_line": 10211,
    "id": "Q45",
    "line": 7594,
-   "lines": 2603,
+   "lines": 2618,
    "role": "opening",
    "role_detail": "",
    "status": null,