feat(planner): 编排器把 analyzing/speccing 也当可执行——派 planner run 自动拆解/写方案

修复"hard/medium 任务建后永远停在 analyzing/speccing"的缺口：编排器现在对 analyzing(hard)
派 planner-decompose、对 speccing(medium) 派 planner-spec（auto-approved 下；auto-easy 仍只执行 easy），
planner 只读跑 CC（无 worktree/无写）产出 → daemon 落库 + 自动提交到 plan_review/spec_review 闸（仍人审）。

- protocol: JobSpec.runKind + spec-result/decompose-result 两型 outbox + DecomposeResult
- runner: runPlanner（只读 Read/Glob/Grep 跑在 repo，opus 档）+ buildPlannerPrompt
- pipeline: runKind 分支 + parseDecompose（取末尾 fenced JSON，非法→failed）
- orchestrator: claimable 纳入 analyzing/speccing + 排除在途；并发/in-flight 从 countExecuting 泛化为
  inflightTaskIds（有 started run 的任务，executor+planner 通用）；claimOne 按状态分 executor/planner
  （planner 不转状态）；reap 泛化（死 planner→failPlanAttempt）
- ingest: ingestAll 覆盖所有 started run；spec-result→setSpec+spec_review；decompose-result→setPlan+建子任务+plan_review；
  failed 按 kind 分流（planner→failPlanAttempt 退避留态、超限→needs_attention）
- store: inflightTaskIds / liveRunsWithTask / failPlanAttempt；reconcile 泛化到所有 started run
- status: analyzing/speccing 加 →needs_attention（planner 失败超限升级）
- models: planner 角色（opus）；status: RunKind 已含 planner
- 测试 +12（pipeline 5 / ingest 3 / orchestrator 4），194 全绿

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/model/status.ts

@@ -57,10 +57,10 @@ export const TERMINAL_STATUS: ReadonlySet<TaskStatus> = new Set<TaskStatus>(['do
 /** 合法状态流转表：from → 允许的 to[] */
 export const TRANSITIONS: Record<TaskStatus, TaskStatus[]> = {
   init:            ['analyzing', 'speccing', 'ready', 'cancelled'],         // 按复杂度分流
-  analyzing:       ['plan_review', 'cancelled', 'paused'],
+  analyzing:       ['plan_review', 'needs_attention', 'cancelled', 'paused'], // planner 拆解 / 失败超限升级
   plan_review:     ['decomposed', 'analyzing', 'cancelled'],               // accept / reject(+意见)
   decomposed:      ['done', 'analyzing', 'cancelled', 'paused'],           // 子全 done / 重拆
-  speccing:        ['spec_review', 'cancelled', 'paused'],
+  speccing:        ['spec_review', 'needs_attention', 'cancelled', 'paused'], // planner 写方案 / 失败超限升级
   spec_review:     ['ready', 'speccing', 'cancelled'],                     // accept / reject(+意见)
   ready:           ['blocked', 'queued', 'speccing', 'analyzing', 'cancelled', 'paused'],
   blocked:         ['ready', 'cancelled', 'paused'],