Record the harness P1 verification on the task card

Why: acceptance needs the precheck, task-sync, and test evidence on the task card before review.
Evidence: task-sync reported already up to date at 701d4ab1e3; make test had already passed on b7631c7.
Impact: task card only.
Refs: feature/agent-harness-p1
Co-authored-by: Cursor <cursoragent@cursor.com>

.task/feature-agent-harness-p1.md

@@ -20,6 +20,7 @@
 | 节点 | sync_base_sha | tested_head_sha | checked_at |
 |---|---|---|---|
 | 启动 | 701d4ab1e351b83bbc05c1b3f306467941064805 | 701d4ab1e351b83bbc05c1b3f306467941064805 | 2026-10-01T12:51:56Z |
+| 同步前验收 | 701d4ab1e351b83bbc05c1b3f306467941064805 | b7631c71a81592b01ffe9b2d35bbb651b97eed56 | 2026-10-01T13:30:00Z |
 
 ## 结果与验证（完成后填写）
 
@@ -32,5 +33,5 @@
   - backend `go test ./...` 通过。现有 `internal/runtime` 断言未改；新增工具整批超限落库与 length 续写。
   - agent-squad `scripts/submodule-consistency.sh` 全部 ok；`go test ./...` 通过。
   - Dev `make test` 通过（boundaries ok，core/backend go test，frontend vitest 51，ui vitest 71，agent-command ok）。
+  - task-sync：`Already up to date.` `[synced] sync_base=701d4ab1e3 tested_head=b7631c71a8 checked_at=2026-10-01T13:30:00Z`
 - 影响与剩余项：合入顺序为 Agent-Native，然后 Backend 与 Agent-Squad，最后 Dev。未合入。P2 的 Reminders 仍为 nil。小队行为留到 P3。
-| 同步前验收 | 701d4ab1e351b83bbc05c1b3f306467941064805 | b7631c71a81592b01ffe9b2d35bbb651b97eed56 | 2026-10-01T13:30:00Z |