test(context-budget): capy skill eager ceiling for the review-voice subagent paragraph (W11; ratchet protocol, capture value)

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

test/fixtures/context-budget.json

@@ -8,7 +8,7 @@
     "browse": 8961,
     "browser-skills/hackernews-frontpage": 371,
     "canary": 13520,
-    "capy/skill/gstack": 2601,
+    "capy/skill/gstack": 2923,
     "careful": 1328,
     "codex": 15598,
     "context-restore": 10995,