CP2.2: review — each English checks only its own SCOWL dictionary; English suggestions drop junk splits and names

craft-libs#483 review (P2): English spelling checked the union of the three
SCOWL dictionaries, so dialects crossed (en-US took colourblind, greyscale;
en-GB took colorblind, esophagi). Each English now checks its own dictionary
only. British English also takes the -ize spellings of its -ise words
(SCOWL's en-GB is -ise only; Word accepts both), and en-variants.txt widens
each dialect by its pairs; judgment/judgement come from craft-i18n#114, which
CI now pins. English with no dialect (is_correct) still takes a word any
English knows. Test: scowl_dialects_dont_cross samples the stems one
dialect has and another lacks, for every pair.

P3s:
- English suggestions (a Tuning of their own): a missing space only between
  two lower-case words of three letters or more, ranked after every one-word
  candidate (publically: publicly first; no "Thea tr", "Che Que"), and no
  word the dictionary only capitalizes (Col, Wis) for a lower-case word.
- A FORBIDDENWORD whole word is never rebuilt from compound parts.
- to_bytes writes ONLYINCOMPOUND without compound rules too (round-trip test).
- Failed lookups: the compound part table is filled lazily, and a word that
  doesn't start like a compound part (SCOWL: a digit) skips compounding;
  20,000 failed long words take 83 ms, as without compounding (1.09 s before).
- README: en-CA is not a British-spelling English.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FypgCX8LsYYE8fsj4byBm2

.github/workflows/proof.yml

@@ -25,11 +25,12 @@ jobs:
         with:
           persist-credentials: false
       # The Language data (craft-i18n `language-data/`), embedded by crates/proof/build.rs.
-      # Pinned to storytold/craft-i18n#109's merge commit (the SCOWL dictionaries, CP2.1).
+      # Pinned to storytold/craft-i18n#114's head (#109's SCOWL dictionaries + judgment/judgement,
+      # CP2.1); TODO(CP2.1): move to #114's merge commit once it merges.
       - uses: actions/checkout@v4
         with:
           repository: storytold/craft-i18n
-          ref: efb1127ac65b238ccfe7df1893f33e91b924b96e
+          ref: c239f934ace90b7939afaceb23b472ceeafd6b8a
           path: craft-i18n
           persist-credentials: false
       - uses: dtolnay/rust-toolchain@b725eda525362e7cf34af9a7243cac1e3f01a7ec # stable