Q135: remove the thread replay that only digested events and reconstructed nothing

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/main/database/migrations/098-drop-audit-replays.ts

@@ -0,0 +1,7 @@
+// Thread "replays" only digested audit events and could not reconstruct a run's context, tool calls or outside state.
+export const dropAuditReplaysSchema = `
+  drop table if exists audit_replay_runs;
+
+  insert into schema_migrations(version, name, applied_at)
+  values (98, 'drop_audit_replays', datetime('now'));
+`;

src/main/database/schema.ts

@@ -96,6 +96,7 @@ import { dropConfigCountEvalsSchema } from "./migrations/094-drop-config-count-e
 import { dropPrBotGatesSchema } from "./migrations/095-drop-pr-bot-gates";
 import { dropChaosDrillsSchema } from "./migrations/096-drop-chaos-drills";
 import { dropDrillOnlySloSchema } from "./migrations/097-drop-drill-only-slo";
+import { dropAuditReplaysSchema } from "./migrations/098-drop-audit-replays";
 
 interface Migration {
   version: number;
@@ -201,6 +202,7 @@ const MIGRATIONS: Migration[] = [
   { version: 95, name: "drop_pr_bot_gates", sql: dropPrBotGatesSchema },
   { version: 96, name: "drop_chaos_drills", sql: dropChaosDrillsSchema },
   { version: 97, name: "drop_drill_only_slo", sql: dropDrillOnlySloSchema },
+  { version: 98, name: "drop_audit_replays", sql: dropAuditReplaysSchema },
 ];
 
 const SCHEMA_VERSION = MIGRATIONS[MIGRATIONS.length - 1].version;