feat(self-audit): a self_audit recipe carries the brief continuous_improvement never had

Role system_prompts are inert on mission turns, so a team without a recipe has
no default brief and every caller must write one (v2 wrote the wrong one: 0/50
calls read the record). The recipe points the phase at
/mission/memory/PROJECT-MEMORY.md, requires verbatim quotes only where a
pattern is reported, and names the clean-record and no-record outcomes as
passes — the v3 condition failed a correct clean audit for paraphrasing.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

frontend/src/components/world/palette.ts

@@ -91,6 +91,7 @@ const PALETTES: Record<string, Palette> = {
   security_hardening: SECURITY,
   refactor: REFACTOR,
   benchmark: BENCHMARK,
+  self_audit: RESEARCH,
   custom: BASE,
 };