fix(preamble): reorder AskUserQuestion Format above model overlay + rewrite Opus 4.7 pacing directive

Root cause of plan-review regression (v1.6.4.0): model overlays rendered
ABOVE the pacing rule in every SKILL.md, so Opus 4.7 read "Batch your
questions" first and absorbed it as the ambient default. The overlay's
claimed subordination ("skill wins on pacing, always") didn't stick —
literal-interpretation mode reads physical order, not claimed hierarchy.

Part 1 of 4 (plan: ~/.claude/plans/system-instruction-you-are-working-polymorphic-twilight.md):

scripts/resolvers/preamble.ts
- Move generateAskUserFormat above generateModelOverlay in section array
- Comment explains why — prevents future refactors from silently reverting

model-overlays/opus-4-7.md
- Replace "Batch your questions" block with "Pace questions to the skill"
- New wording makes one-question-per-turn the default when the skill
  contains STOP directives; batching becomes the explicit exception

Regenerated 30 SKILL.md files via bun run gen:skill-docs.

Verified:
- With --model opus-4-7: Format renders at line 359, Model-Specific
  Patch at 373, "Pace questions" at 419 (Format comes first, overlay
  second, pacing directive intact).
- bun test passes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scripts/resolvers/preamble.ts

@@ -84,11 +84,15 @@ export function generatePreamble(ctx: TemplateContext): string {
     generateVendoringDeprecation(ctx),
     generateSpawnedSessionCheck(),
     generateBrainHealthInstruction(ctx),
+    // AskUserQuestion Format renders BEFORE the model overlay so the pacing rule
+    // is the ambient default; the overlay's behavioral nudges land as subordinate
+    // patches. Opus 4.7 reads top-to-bottom and absorbs the first pacing directive
+    // it hits; reversing this order regresses plan-review cadence (v1.6.4.0 bug).
+    ...(tier >= 2 ? [generateAskUserFormat(ctx)] : []),
     generateModelOverlay(ctx),
     generateVoiceDirective(tier),
     ...(tier >= 2 ? [
       generateContextRecovery(ctx),
-      generateAskUserFormat(ctx),
       generateWritingStyle(ctx),
       generateCompletenessSection(),
       generateConfusionProtocol(),