Freeze initiative intake after the second child merged

Why: Both required children (#595, #596) are merged; the initiative must stop accepting new requirements before final delivery.
Evidence: PR #596 merged as 41bf47c with test/test-pg/svc-realcombo green on 00ae760.
Impact: Task card only; triage no longer offers this initiative as a JOIN candidate.
Refs: PR #585, PR #596
Co-authored-by: Cursor <cursoragent@cursor.com>

.task/feature-development-governance-v2.md

@@ -6,7 +6,7 @@
 
 - 权威仓：ssh://git@git-ssh.u1680832.nyat.app:31411/weichen/Agent-System-Dev.git；目标分支：main；R0（initial_base_sha）= e665bfb574fe3311bb1ffa02212c0620c4e310f7
 - 工作区：/home/weichen/projects/Agent-System-Dev-wt-feature-development-governance-v2（worktree）；分支：feature/development-governance-v2
-- 分支类型：initiative；initiative_id：feature-development-governance-v2；root_target：main；immediate_target：main；accepting_requirements：true
+- 分支类型：initiative；initiative_id：feature-development-governance-v2；root_target：main；immediate_target：main；accepting_requirements：false
 
 - 授权与交付终点：落实两级分支模型（initiative -> child -> main）与分流检查，升级 Agent CLI 通用执行规范至 Guidelines 并由各仓采纳
 - 交付模式：goal-first（目标、范围和交付终点一次确认；范围内连续推进）
@@ -45,10 +45,12 @@
 
 接纳状态说明（2026-10-16）：为 Phase 2 第二个子任务（即时目标完整性 U2.2、配置 integration 块 U2.5、文档 U2.4）及 Phase 3 真实两级演练，临时重新打开接纳；第二个子任务合入后立即冻结（accepting_requirements=false），并验证冻结后的 triage 拒绝新子任务。
 
+冻结记录（2026-10-17）：#596 已合入 initiative（41bf47c），accepting_requirements 置为 false，接纳关闭。
+
 | 子任务分支 | 必需 | 状态 | PR |
 |---|---|---|---|
 | feature/development-governance-v2-triage-hardening | 是 | 已合入 | [#595](https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/595) |
-| feature/development-governance-v2-target-integrity | 是 | 进行中 | — |
+| feature/development-governance-v2-target-integrity | 是 | 已合入 | [#596](https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/596) |
 
 ## 需求分析