chore: locale specific glossaries

.opencode/agent/glossary/README.md

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+# Locale Glossaries
+
+Use this folder for locale-specific translation guidance that supplements `.opencode/agent/translator.md`.
+
+The global glossary in `translator.md` remains the source of truth for shared do-not-translate terms (commands, code, paths, product names, etc.). These locale files capture community learnings about phrasing and terminology preferences.
+
+## File Naming
+
+- One file per locale
+- Use lowercase locale slugs that match docs locales when possible (for example, `zh-cn.md`, `zh-tw.md`)
+- If only language-level guidance exists, use the language code (for example, `fr.md`)
+
+## What To Put In A Locale File
+
+- **Sources**: PRs/issues/discussions that motivated the guidance
+- **Do Not Translate (Locale Additions)**: locale-specific terms or casing decisions
+- **Preferred Terms**: recurring UI/docs words with preferred translations
+- **Guidance**: tone, style, and consistency notes
+- **Avoid** (optional): common literal translations or wording we should avoid
+
+Prefer guidance that is:
+
+- Repeated across multiple docs/screens
+- Easy to apply consistently
+- Backed by a community contribution or review discussion
+
+## Template
+
+```md
+# <locale> Glossary
+
+## Sources
+
+- PR #12345: https://github.com/anomalyco/opencode/pull/12345
+
+## Do Not Translate (Locale Additions)
+
+- `OpenCode` (preserve casing)
+
+## Preferred Terms
+
+| English | Preferred | Notes     |
+| ------- | --------- | --------- |
+| prompt  | ...       | preferred |
+| session | ...       | preferred |
+
+## Guidance
+
+- Prefer natural phrasing over literal translation
+
+## Avoid
+
+- Avoid ... when ...
+```
+
+## Contribution Notes
+
+- Mark entries as preferred when they may evolve
+- Keep examples short
+- Add or update the `Sources` section whenever you add a new rule