Verified empirically (gitea #7): the neosun wrapper's \`instruct\`
field routes through CosyVoice's inference_instruct2 which expects
a Chinese template. English directives produce Chinese-phonemed
speech of the directive itself — the model is stuck in Chinese
context regardless of the directive language.
XML inline tags (<angry>, <sad>, etc.) bypass that path entirely
and work cleanly for English emotion control.
README updated:
- Added Gotcha section entry explaining the instruct trap with
the specific failure mode and the byte-identical-response
evidence
- Smoke-test recipes (steps 4 + 5) reworked to use <angry>...</angry>
in the input instead of an English instruct value
- "Emotion / style control" table now marks instruct as Chinese-
only with ⚠️ and XML tags as ✅
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