- strengthen locale parity checks and related regression coverage
- stabilize repo-level english-first test expectations
- harden MCP packaging, install entrypoints, and supporting script validation
- tighten related config and model checks used by the rollout
- split UI locale packs into en-US, zh-CN, and zh-TW modules
- switch runtime defaults, docs, and repository guidance toward an English-first baseline
- update core, MCP, and UI runtime copy to remove hardcoded Chinese fallbacks
- add locale parity and no-hardcoded-runtime guardrails across the repo
linshen