docs(pm-dispatch): seat sessions run at effort high, checked at seat-taking (#28926)

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Fixes #28901

Clause-②: no
Metadata-protocol: none

## 维护者速读

- **改了什么:** 席位规则 `seat-lifecycle.md` 的坐席同笔后加一行:分诊席与车道席会话 effort 恒
`high`;坐席时低于即在登记行注明,请账号主人以 `high` 重开。
- **为什么改:** 落实裁决「同意，分诊，车道经理都用 high」与「写进席位规则」;派出的 dev 仍按卡定
effort,`SKILL.md` 与 `execution-duties.md` 未动。
- **风险与回滚:** 纯指令文本,一增一删,文件仍 96 行(上限 96);回滚即 revert 本 PR。
- **先看:** `.claude/skills/pm-dispatch/references/seat-lifecycle.md`
坐席同笔下的新行,和被删的「范围与常设承诺是岗位说明不是状态」一行。
- **两分钟验证:** `node scripts/pm/check-skill-line-ratchet.mjs`,预期
seat-lifecycle.md 96 行、headroom 0、退出码 0。
- **需要你做的:** 无,席位落地。

## What changes

- `.claude/skills/pm-dispatch/references/seat-lifecycle.md`, in the
seat-taking stroke (right after the `坐席同笔` line): one new rule line. The
triage seat and every lane seat run their session at effort `high`. A
seat that takes a seat below `high` says so in its registration line and
asks its account owner to restart it at `high`. Not a gate and not a
label.
- **Reader:** every seat on every fire. `SKILL.md`'s phase index routes
every seat, triage included, to `seat-lifecycle.md` on every fire, so
this one line is the shared section the card allows. No lane file needed
its own pointer.
- **Paid by deletion, not by raising the ceiling:** the file stood at
96/96. The line removed is `范围与常设承诺是岗位说明不是状态,版本化在
references/lanes/LANE.md`. Every lane charter already says this in its
own header (`本文是本车道岗位说明,现值状态恒在座位贴`), and the same seat reads that
charter on the same fire. The next line (`贴内只放指向车道文件的指针`) keeps the
post-side half. Raising the ceiling would mean editing
`scripts/pm/check-skill-line-ratchet.mjs`, which is outside the claimed
file surface.
- Untouched: `SKILL.md`'s per-card dev effort rule, and the `xhigh`
floor in `execution-duties.md`.

## Tests

No code or tested behaviour changed, so there is no test and no
ablation. These are the instruction-surface gates, on head `ba49c063`:

<details><summary>dispatch-gates --commands (17 derived) — every one
exit 0</summary>

```
node scripts/check-closing-keyword-parity.mjs                       :: exit 0
node scripts/check-closing-keyword-parity.mjs --self-test           :: exit 0
node scripts/check-comment-mask-corpus.mjs                          :: exit 0
node scripts/pm/check-harness-current.mjs --self-test               :: exit 0
pnpm --filter @objectstack/lint run check:doc-formula-expressions   :: exit 0  (first run exit 3 PREREQUISITE NOT MET; built formula+lint under the verify lock, re-run 0)
pnpm check:agent-test-spelling                                      :: exit 0
pnpm check:cross-package-test-inputs                                :: exit 0
pnpm check:doc-authoring                                            :: exit 0
pnpm check:driver-memory-census                                     :: exit 0
pnpm check:gitlink-declared                                         :: exit 0
pnpm check:nul-bytes                                                :: exit 0
pnpm check:pm-governed-merges                                       :: exit 0
pnpm check:pm-skill-id-lint                                         :: exit 0  (106 files clean)
pnpm check:pm-skill-ratchet                                         :: exit 0  (seat-lifecycle.md 96 lines, ceiling 96, headroom 0; max line 120 bytes holds)
pnpm check:refd-timer-probe                                         :: exit 0
pnpm check:skill-frame-sync                                         :: exit 0
pnpm check:watch-hint-literal                                       :: exit 0
```

`dispatch-gates --ran`: `17 derived famil(ies) accounted for — 17 run, 0
NOT-MEASURED (a DERIVED zero)`.

</details>

## Acceptance notes

- The card's suggested route also put one pointer line in
`lanes/triage.md` and in each lane file. I didn't take it. Every seat
already reaches `seat-lifecycle.md` on every fire through `SKILL.md`'s
phase index, and `triage.md`, `server.md`, `ui.md`, `hotcrm.md` and
`director.md` are all at headroom 0, so each pointer would cost a
deletion and add no reader.

## Verification

- `grep -c "effort 恒"
.claude/skills/pm-dispatch/references/seat-lifecycle.md` gives 1. `grep
-c "版本化在"` on the same file gives 0. `wc -l` gives 96.

---
_Generated by [Claude
Code](https://claude.ai/code/session_01J8VVAkjAB27uJGmV8x5dQr)_

Co-authored-by: Claude <noreply@anthropic.com>

Author: objectstack-fleet[bot]

.claude/skills/pm-dispatch/references/seat-lifecycle.md

@@ -26,7 +26,6 @@
 - 标题只放慢状态,快状态留在说明段。
 - 维护者强制接管令取席位、队列、在飞卡、未起工卡与待落地 PR;⛔ 不等原认领者注记。
 - 子代理 dev 的返回消息、探活与续派只在派发会话;落地或 `Release:` 后归新席位。
-- 范围与常设承诺是岗位说明不是状态,版本化在 `references/lanes/<lane>.md`。
 - 贴内只放指向车道文件的指针,升级走技能 PR,⛔ 不手抄接力。
 - 写侧刷新点 = 轮次边界;中途状态由卡上 claim 评论与指针行、PR 上 `## 席位核对` 承载。
 - 读侧只读贴正文 + 晚于正文最后编辑的评论;刷新前读完评论、回执未读敲门,再刷。
@@ -38,6 +37,7 @@
 - 竞态三招:动手前重 fetch 正文、审计评论时间戳先到先得、写后回读。
 - 收班 = 状态 flush + 在飞默认交回队列、不等落地;派发口径失效,简报 ⛔ 不列作继承裁决。
 - 坐席同笔:建自绑巡查 routine、开信箱并订阅、存根记 `Patrol:` 与 `Mailbox:`、发 `seat-online`。
+- 分诊席与车道席会话 effort 恒 `high`;坐席时低于即登记行注明,请账号主人以 `high` 重开。
 - 收班同笔删 routine、关信箱、发 `seat-offline`;强制接管者代发 `seat-online`(`project-forms.md`)。
 - 离任留守只写点名的已 ACCEPT 待队列或待人批 PR,⛔ 不读队列、不新派发、不碰未点名卡。
 - 换班报告默认零建议,只收三类:原则错/缺、可机械化项、平台事实变化。