content: add 4 Poland canons (banking/disaster/policy/safety); re-verify 3 aging canons

[dbwls99706]

Gap filled

Poland (pl) had only 6 country canons (tied lowest, alongside Finland/Greece
which are already claimed by open PRs #179/#181). This PR fills 4 of the 6
zero-coverage gap domains identified for Poland: banking, disaster,
policy, safety. Poland country-canon count: 6 → 10.

No overlap with PR #181 (Greece) or PR #179 (Finland) - neither touches pl,
and this PR does not touch gr or fi.

New canons

• banking/basic-bank-account-right/pl - AI telling an EU-resident
  foreigner they cannot open any Polish bank account without a PESEL
  number. Poland's Payment Services Act (Art. 59ia-59ic) entitles any
  EU-resident consumer to a free "podstawowy rachunek płatniczy" (basic
  payment account), and PESEL is not among the exhaustive statutory refusal
  grounds - though banks' standard (non-basic) products often still ask
  for one in practice.
• disaster/rcb-alert-sms-not-rso-app/pl - AI telling someone they must
  install an app (especially the separate RSO app) to receive Poland's
  national emergency alerts. Alert RCB is a mandatory SMS broadcast to every
  phone on a mast in the danger area, no install/registration required; RSO
  is a genuinely separate MSWiA-run app for more detailed regional warnings.
• policy/pesel-in-person-required-non-eu/pl - AI telling a non-EU/EEA/
  Swiss foreigner they can apply for a PESEL by mail or through a proxy (true
  before 2026), or that holding a PESEL grants legal residence/work rights
  (it does not - it's purely an administrative identifier). Since 1 Jan 2026
  (Act of 12 Sept 2025), third-country nationals must appear in person.
• safety/nighttime-alcohol-sale-ban-by-municipality/pl - AI assuming
  either a nationwide night alcohol-sale ban or no restriction at all exists
  in Poland. A 2018 amendment (Art. 12(4) of the sobriety act) lets each
  gmina opt in to a 22:00-06:00 off-premise sales restriction; ~180
  municipalities (Kraków, Warsaw since June 2026) have adopted it, most have
  not - it must be checked per city.

Distinctness check against existing content: nearest existing entries are
banking/basic-bank-account-right/be (same statutory-right pattern, Belgian
facts) and legal/alko-monopoly-strength-threshold/fi (Finnish retail-ABV
rule, unrelated to Poland's municipal night-sale mechanism) - both are
different countries/facts, not duplicates of any existing Poland canon.

Primary sources used

• lexlege.pl (consolidated statute text: Ustawa o usługach płatniczych
  Art. 59ia/59ic; Ustawa o wychowaniu w trzeźwości Art. 12(4))
• isap.sejm.gov.pl (official Journal of Laws record, Dz.U. 2018 poz. 310)
• gov.pl/web/finanse (Ministry of Finance - basic payment account)
• gov.pl/web/gov (PESEL application service page)
• gov.pl/web/rcb-en and gov.pl/web/mswia (Government Centre for Security
  / Ministry of Interior and Administration - Alert RCB and RSO)
• codozasady.pl (CMS law firm's Polish banking blog, EN)
• bankier.pl, hr-legal.pl, notesfrompoland.com, tvp.info (reputable
  Polish financial/legal/media outlets)

Re-verified aging canons

git fetch origin --prune showed "Claim scan: excluded 105 canon(s) claimed
by 16 other pushed branch(es)" (not incomplete). --seed pl --exclude <the 6 PR #179/#181 IDs> assigned:

• cuda/cusolver-internal-error/cuda12-a100 - re-read all cited NVIDIA/
  PyTorch docs; content still accurate. Two source URLs had moved
  (pytorch.org/docs/... → 301 redirect to docs.pytorch.org/docs/...) and
  were updated to the canonical location.
• kubernetes/dns-resolution-failed-pod/k8s1-linux - re-read all cited
  kubernetes.io docs; content still accurate, URLs unchanged.
• react/cannot-update-while-rendering/react18-linux - re-read all cited
  react.dev docs; content still accurate (useEffect/useLayoutEffect/lifting
  state pages all current), URLs unchanged.

Bumped last_confirmed, verdict.last_updated, metadata.last_verification
on all three to 2026-08-25. Re-ran the claim scan right before committing
(after a second git fetch --prune) and manually confirmed via git diff
against every other pushed branch that none of the 3 target files were
touched elsewhere.

Validation

All run locally, clean:

• ruff check generator/ tests/ → All checks passed
• python -m pytest tests/ -q → 369 passed
• python -m generator.validate --data-only → PASSED (2546 canons, 0 stale)
• python -m generator.build_site → built successfully (2546 pages)
• python -m generator.validate --site-only → PASSED

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