Apply Qwen NFC normalization before token splitting

docs/issue111-tokenizer/README.md

@@ -87,3 +87,10 @@ denied, release app bundle with ad-hoc signing, and 310 application + 8 tool tes
 (228 opt-in tests ignored by the ordinary gate). Pinned upstream tokenizer tests:
 5 passed; the one 27B Quality-pack test skipped because that distinct model pack
 is not installed. The installed Flash Next model was exercised above.
+
+## Follow-up #116
+
+NFC is now implemented. The component-stage test still checks every original
+normalization-free split/BPE ID; it additionally checks the full tokenizer against
+all `full_ids` and the normalized decode, closing the one-case gap documented
+above. See `../issue116-nfc/` for full normalization and cache migration receipts.