fix(cctv): keep Icelandic labels intact and treat 'og' facings as ambiguous

- Label repeat-collapse uses letter lookarounds instead of ASCII-only \b, so
  'Þverá Árnessýslu' is no longer joined and 'séð séð' collapses.
- 'til austurs og vesturs' and 'í norður og suður' name two facings and keep
  the low-confidence pose.
- Fallback name uses the frame stem when the station number is missing.
- Tests: label and heading regressions, dedupe keeps the last row, cap clamp,
  high-confidence pose, frame redirect pin; file added to format scope.
- Credit names the dataset, links the terms and states no endorsement.

scripts/format-scope.json

@@ -583,6 +583,7 @@
   "src/data/cctvHk.test.mjs",
   "src/data/cctvVegvesen.test.mjs",
   "src/data/cctvA22.test.mjs",
+  "src/data/cctvIceland.test.mjs",
   "src/data/cctvNyc.test.mjs",
   "src/data/cctvHouston.test.mjs",
   "src/data/cctvNswSource.test.mjs",