document-release: changelog sell test as three questions, not a 0-3 score (s10 M6)

The threshold stays (fewer than two answered = needs attention, not
replacement). M4/M5 (NEVER CLOBBER / NEVER BUMP) keep their wording; the
integrator owns the eval-gated rewrite.

W7a pin: workflow-excerpt:170 'Entries scoring <2 need attention, not
replacement' becomes a case-insensitive check that weak entries get
attention, not replacement.

Template-only commit: generated SKILL.md is expected red until the regeneration commit.

document-release/sections/release-body.md.tmpl

@@ -101,11 +101,11 @@ preserved them. This skill must NEVER do that.
 
 **If CHANGELOG was modified in this branch**, review the entry for voice:
 
-- **Sell test (Diataxis rubric):** Score each CHANGELOG entry 0-3:
-  - **1 point** — answers "What changed?" (reference: names the feature/fix)
-  - **1 point** — answers "Why should I care?" (explanation: user impact, pain removed)
-  - **1 point** — answers "How do I use it?" (how-to: command, flag, or link to docs)
-  - Entries scoring <2 need attention, not replacement. Report missing facts or user impact; polish existing wording only. A score of 3 passes all three checks.
+- **Sell test (Diataxis):** a good entry answers "What changed?" (names the
+  feature/fix), "Why should I care?" (user impact, pain removed) and "How do I use
+  it?" (command, flag, or link to docs). An entry that answers fewer than two of these needs
+  attention, not replacement: report the missing facts or user impact, and polish
+  existing wording only.
 - Lead with what the user can now **do** — not implementation details.
 - "You can now..." not "Refactored the..."
 - Flag commit-message-style entries and polish wording without removing facts.

test/workflow-excerpt.test.ts

@@ -167,7 +167,7 @@ describe('workflow judge excerpts', () => {
     expect(review).toContain('present the findings, then use AskUserQuestion ONCE:');
     expect(review).toContain('On A or per-finding approvals, make the approved edits yourself');
     expect(text).toContain('Step 9 then commits and pushes those edits');
-    expect(text).toContain('Entries scoring <2 need attention, not replacement');
+    expect(text).toMatch(/needs?\s+attention,?\s+not\s+replacement/i);
     expect(text).not.toContain('Flag and rewrite');
     expect(text).toContain('if VERSION is absent, use the completion date only');
   });