v0.2.1 — support floor aligned with the verified DSH baseline

v0.2.1 — support floor aligned with the verified DSH baseline

A patch release that corrects the compatibility contract published with v0.2.0. No runtime, client, or test code changed.

中文摘要：v0.2.1 是纯契约修正：把支持下限从 0.1.2-alpha.1 提升到 0.1.2-alpha.3，与 CI 实际持续验证的基线保持一致，去掉不再有验证覆盖的 alpha.1 支持声明。运行时代码、客户端与测试均无改动。

Why

v0.2.0 moved the CI harness pin to dsh-v0.1.2-alpha.3 while the peer range still declared >=0.1.2-alpha.1 <0.2.0. Alpha.1 compatibility had only a one-time verification snapshot (run 33468591566 on da77844); afterwards no CI signal would catch a commit that breaks alpha.1. To make every declared baseline continuously verified, this release drops the alpha.1 claim instead of keeping it on an unverified pin:

• Peer ranges for the dsh-0.1.2 client packages (dsh-client-ui-primitives, dsh-client-ui-chat, dsh-client-ui-renderer, dsh-client-ui-session) and dsh-subagent are now >=0.1.2-alpha.3 <0.2.0.
• README (EN/ZH) now states the plugin requires DeepSeek Harness 0.1.2-alpha.3 or newer.
• The v0.2.0 release notes were revised to reference this change.

Baseline

• Tag: v0.2.1 — commit fcf53b2e5c8b9b302034dd62124bf04077543f7b on main
• Built and verified against DeepSeek Harness 0.1.2-alpha.3 (pinned harness commit dd6322d604e00eec1ba5e0c8541159906a21094a, the single CI baseline)
• Verification: pnpm run check green — 29 test files / 214 tests; GitHub Actions green on the release commit; npm pack --dry-run passed

Install

Pin the reviewed commit (see SECURITY.md):

dsh plugin --profile web add github:whutzefengxie-ops/dsh-shadow-mind#fcf53b2e5c8b9b302034dd62124bf04077543f7b

Known limits

• npm registry publish is deferred: the peer dependency @deepseek-ai/dsh-client-ui-chat >=0.1.2-alpha.3 is not on npm yet. Install from GitHub (above); the npm route will be enabled once the dsh-0.1.2 client packages are published.