chore: push all design docs, V2 plan specs, and current working state

Includes AirPlan design documents, AircOding-alpha1-plan, AirPlanV2,
AirPlan-ParaV2, AirPlan-Para V1 reference docs, and all working code
changes across packages.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

AirPlan/docs/analysis/requirements.md

@@ -58,6 +58,15 @@ AirCoding must route architecture/interface/product-impacting decisions to an Ar
 
 AirCoding must schedule TaskSpec records with hard/soft dependencies, write-area conflict handling, retry budgets, child worker dispatch, heartbeat monitoring, merge coordination, and restart recovery.
 
+**FR-007.5 ADR 级联失效与架构变更回滚**：当 ADR 发生架构方案变更（如 ffmpeg → gstreamer）时，调度器必须：
+1. 通过 TaskNode.adr_refs 溯源所有依赖该 ADR 的任务（含已完成）
+2. 级联失效受影响任务（completed→invalidated、running→终止、pending→cancelled）
+3. 冻结调度（dispatch_frozen），阻止新任务派发
+4. 创建 git 回滚快照（rollback_ref），支持 revert 旧方案代码
+5. 接收 ArchitectureDesigner 产出的 PlanDelta 增量重规划
+6. apply_delta 吸收新任务后解冻调度
+7. 终审时检查 INVALIDATED 任务的旧代码是否已清理
+
 ### FR-008 Independent Worker Agents
 
 Executor, Reviewer, Debugger, Compactor, and ExperienceMiner must run as independent Bun child processes communicating through NDJSON IPC.