从 02-P/plan-progress.markdown 的 P-20260626-m4c-handshake-coordination 领取 m4c 侧 M4C-H5-05,为 Mindraw 外部 App API transport 做 m4c 侧 client / adapter 准备。
范围边界:不写真实用户原件,不做 App open direct package write,不宣传 .assets 权威化,不领取 PM-H5-GATE / H* / PM-*;真实 transport 不可用时只 against fixture / stub 验证并回写 blocker / No-Go。
p.mindrawforcodex/03-O/C3.tools/scripts/m4c-h5-transport-client-adapter.mjs。mindraw.app.* method mapping、timeout / retry、错误码映射、stub capability、contract fixture 和 dry-run fallback。M4C-H5-01/02/03 fixture 与真实用户工作副本,生成 transport contract fixture。p.mindrawforcodex/02-P/Round05-MCPAlpha/qa/round05-h5-transport-client-adapter.json 与 round05-h5-transport-client-adapter-check.md。p.mindrawforcodex/03-O/K2.项目管理/联调QA/2026-06-26-M4C-H5-05TransportClientAdapter.md。INDEX.md、m4c INDEX.md、m4c CODEGRAPH.md、C3.tools/README.md。02-P/plan-progress.markdown:勾选 M4C-H5-05,追加 Progress Log。03-O 已提交:6dbe08466ce8b9f76795bdf82b1bbb14ab00484d。node --check p.mindrawforcodex/03-O/C3.tools/scripts/m4c-h5-transport-client-adapter.mjs:PASS。node p.mindrawforcodex/03-O/C3.tools/scripts/m4c-h5-transport-client-adapter.mjs contract:PASS / PREPARED。node p.mindrawforcodex/03-O/C3.tools/scripts/m4c-h5-transport-client-adapter.mjs smoke:m4c contract prepared,但正式 H5 retry 仍 NO-GO。git -C p.mindrawforcodex/03-O diff --check 与 diff --cached --check:PASS。codebase-memory-mcp cli index_repository ...:PASS,项目共享图谱已更新。M4C-H5-05-BLOCKER-LIVE-TRANSPORT。MD-H5-02 提供真实 callable transport / capability 后决定。MD-H5-02 尚需提供真实 external App API transport / capability 文件。PM 等 MD-H5-02 完成后,再基于本轮 m4c client / adapter 产物决定是否拆 H5 retry smoke;m4c 当前不领取新任务。