Credibility pass: the splice marks sanded from the rev-11 batch

The extracted rebuildRoom loop reflowed to the file's indent and its
doc comments unstacked; liftIdiotIfSatisfied moves below idiotBlocked
so each keeps its own comment; the pickup's duplicated owner lookup
folds to one; the cloned grab-refusal chain hoists to grabRefused; a
one-off #8a7a5c rejoins the #8a7a5e palette; an inert overflow-x line
and a duplicate import go; span 6 and the two cache strategies say why;
the reversed walking-dead test moves beside its biting sibling. Also:
the replay harness now honors lobby kicks, which VVZU (five bots
seated, two kicked) was the first production ledger to exercise.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RCWSTnb1KYTPyL4GmhGnF

packages/server/src/index.ts

@@ -225,7 +225,10 @@ function inviteHtml(room: Room, rawHost: string, rawProto: string): string {
   ];
   return ogPage(metas);
 }
-/** Rendered share cards, by share id (immutable once minted). */
+
+/** Rendered share cards, by share id. Shares are immutable, so unlike the
+ * TTL'd shareCache above this never invalidates — it only rotates out the
+ * oldest entry when full. */
 const ogPngCache = new Map<string, Buffer>();
 const OG_PNG_CACHE_MAX = 200;