feat(sources): Wayback pass, automatic trimming, detention rule, ten cases re-sourced

Second and third rounds on the dossier pipeline, reviewed locally before commit.

Retrieval
- wayback_pass.py: retries every BLOCKED/DEAD/THIN/ERROR linked source through
  the Wayback Machine; blocks carry the snapshot date, archive URL and the live
  verdict. 143 slots retried: 93 fetched, 37 no snapshot, 12 script shells, 1 PDF.
- fetch_sources.py: fetch_wayback() helper.
- add_extra_sources.py: files staged extra_* finds (web search, not on the DB
  record) into the store with a provenance note.
- Cases re-sourced by web search: 248 (Oslo: Document.no, Avisa Oslo, NRK; the
  linked Le Parisien piece is case 242 and is marked OFF-CASE), 258 Kharkiv,
  260 Singapore, 358 Bangkok, 365 Las Vegas, 388 Verneuil-sur-Seine, 390 Zoersel,
  430 Homestead. 341 of 364 cases now hold a fetched article; 11, 66 and 399
  have no public text source (podcast, police video, direct victim report).

Trimming
- auto_trim.py: case-anchored furniture cut for UNTRIMMED blocks. Finds the body
  run that mentions the case, merges across subheadings and short furniture
  gaps, drops teasers, share bars, date/URL/caption lines and subscription
  pitches; refuses pages with no record term or almost no body. 302 blocks
  trimmed; 16 left on auto-trim-review.md (7 OFF-CASE suspects). Every cut is
  labelled AUTO-TRIMMED, UNREVIEWED in the dossier; the full extract stays in
  staging/. Decisions with anchors in trim-decisions-auto.json.
- build_cases.py / verify_all.py: banners for auto-trimmed and archived blocks,
  staged-file check extended to Wayback blocks, flag legend under the record.

Detention rule
- README "Definitions": the DB field `kidnappings` is the DETENTION violence
  type (victim, guard, staff or relative held to force submission or execute
  the theft), distinct from the Kidnapping scenario (taken away and held).
- detention-flag-review.md / detention-flag-corrections.json: 40 records
  reviewed with evidence; 30 set-to-1 proposals accepted by the owner on
  2026-09-06 (listed in corrections-approved.md), 10 still open.
- apply_detention_wording.py: "Violence Used" in the 70 reviewed summaries now
  names detention explicitly (62 of 70 labelled), supported by the summary's
  own text; idempotent; supersedes the batch scripts' wording.

Worklist and docs
- sofia-worklist.md: 248 decisions, detention rule item replacing the old
  "no abduction" item, fresh-search section for the textless cases.
- README-START-HERE.md: progress notes, run commands, next steps.
- Bug fixed in passing: Wayback blocks stored in-memory text with carriage
  returns; now stored as read back from disk.

verify_all.py PASSES (2321 checks).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GZZENdTLzNGsbNy4DyF1yt

merge-output/staging/054/01_cointelegraph-com-wayback.txt

@@ -0,0 +1,27 @@
+Gang of Masked Men Raid Bitcoin Exchange in Birmingham
+
+TRX$0.2754 1.90%ETH$2,099 9.11%XRP$1.46 12.99%BTC$71,254 9.10%XLM$0.1635 6.79%BCH$526.55 13.48%BNB$659.98 5.79%HYPE$33.06 6.01%SOL$88.40 12.64%ADA$0.2762 9.16%XMR$338.16 12.17%LINK$8.98 9.79%DOGE$0.09848 8.16%
+
+Written by Thomas Simms,Former Staff Writer
+
+Reviewed by Igor Belkin,Former Staff Editor
+
+Police are looking for a gang of masked men who raided a Bitcoin exchange in the English city of Birmingham.
+
+A gang of masked men have raided a Bitcoin (BTC) exchange in the English city of Birmingham, sparking a police investigation.
+
+Local Facebook page Brumz Updates posted footage of the burglars ransacking the building as sirens blared on July 15.
+
+Witnesses look on helplessly as the robbery unfolds — and seconds later, the gang speed away from the scene in a waiting car.
+
+West Midlands Police has launched an investigation, but have confirmed that nothing of value was stolen from the business.
+
+According to the Daily Mail, the thieves had attempted to steal a Bitcoin ATM using a rope attached to their car.
+
+The owner of the establishment, Adam Gramowski, told the newspaper that he believes the robbers were after cash inside the machine rather than cryptocurrency, adding:
+
+“There are no BTC [Bitcoin] in the machine, they are being sent directly from our server.”
+
+Violent raids targeting Bitcoin businesses and traders are becoming more common. In February, a Bitcoin trader was attacked in his own home by a group of robbers disguised as the police.
+
+Cointelegraph is committed to independent, transparent journalism. This news article is produced in accordance with Cointelegraph’s Editorial Policy and aims to provide accurate and timely information. Readers are encouraged to verify information independently. Read our Editorial Policy https://cointelegraph.com/editorial-policy

merge-output/staging/054/index.json

@@ -5,10 +5,13 @@
     "field": "url",
     "url": "https://cointelegraph.com/news/gang-of-masked-men-raid-bitcoin-embassy-in-birmingham",
     "host": "cointelegraph.com",
-    "fetched_at": "2026-09-05T12:54:50+00:00",
-    "verdict": "DEAD",
-    "method": "raw",
-    "http": 404,
-    "note": "raw request refused; try the WebFetch path, which is a model transcription and must be labelled as such"
+    "fetched_at": "2026-09-05T13:31:54+00:00",
+    "verdict": "FETCHED",
+    "method": "wayback",
+    "snapshot": "20260207041923",
+    "archive_url": "http://web.archive.org/web/20260207041923/https://cointelegraph.com/news/gang-of-masked-men-raid-bitcoin-embassy-in-birmingham",
+    "chars": 1857,
+    "sha256": "2b5df404771eba8122f5ce2e512dec754846242b11bf5c2c2e54ccbf15d48ad0",
+    "live_verdict": "DEAD"
   }
 ]