docs(pm-dispatch): retire duty-7's reader half per maintainer ruling (#13603)

Maintainer ruling 2026-08-31, verbatim: 「13580 B(荐」 — option B adopted.

Deletes the two bullets of the runbook's duty-7 section that carry the
reader-count method: the 读者半边 bullet (the git-grep-per-key method) and
the 正对照恒先跑 bullet (the sys_share_link.email_allowlist calibration).
The instrument they describe was measured structurally blind on 104 of 121
keys, so prose explaining when to trust a blind instrument helps no PM
decision. Construct removal, net-negative lines.

The section heading and the surface half (canonical member-level diff,
measured good) stay. No replacement prose is added.

One coherence repair rides along, byte-bounded and in place: the heading
suffix drops 「与校准」 now that the calibration bullet is gone (73 -> 64
bytes, shrinks). The surviving bullet's name is left untouched because
renaming it would grow its line by 2 bytes.

271 -> 265 lines.


Claude-Session: https://claude.ai/code/session_01EXxTW8mvPBhoHxmyPZ63de

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

Author: claude[bot]

.claude/skills/pm-dispatch/references/dispatch-runbook.md

@@ -259,13 +259,7 @@ monitor 按自己的 deadline 触发;身份 = 三元组 `(issue, 分支, PR head
   ⇒ 派发令写明「⛔ 测量存在之前不写修复」—— 测量姿态让 dev 看得见卡面没列的探针,
   实现姿态只看得见要交的 diff。
 
-## security-object 无判决枚举(座位贴常设 ⑦)的方法与校准
+## security-object 无判决枚举(座位贴常设 ⑦)的方法
 
 - **表面半边(⛔ 不比总数)**:`git diff <基线ref> origin/main -- '<两插件>/src/objects/*.object.ts'` 过
   `grep -E "^[+-]    [a-z_][a-z0-9_]*: Field\."`;零命中 = 成员级同一,必记基线 ref(2026-08-26 `b000ab59`)。
-- **读者半边**:`git grep -I -n -w "<键>" -- . ':(exclude)<声明该列的 *.object.ts>' ':(exclude).claude'`(⛔
-  缺后者会命中本节),逐命中行计一次:① `*.generated.ts` 不是读者;
-  ② `packages/spec` 契约声明**算**读点;③ 裸字面量 `key:` 拼写**算**。
-- **正对照恒先跑**:`sys_share_link.email_allowlist` = **3**(2026-08-26 记;
-  漏 ① 得 7,多减 ② 得 2)—— 跑不出 3 即仪器坏了,⛔ 记下任何零之前停;
-  ⛔ 无对照的零记「没读到」不记 0(`name` 这类列名到处匹配,未校准的仪器平凡地回 0)。