Add thread audit replay controls

AgentCompany-New/src/main/database/migrations/019-audit-replay.ts

@@ -0,0 +1,18 @@
+export const auditReplaySchema = `
+  create table if not exists audit_replay_runs (
+    id text primary key,
+    org_id text not null references organizations(id) on delete cascade,
+    thread_id text not null references chat_threads(id) on delete cascade,
+    event_count integer not null,
+    event_digest text not null,
+    replay_json text not null,
+    created_by_employee_id text references employees(id) on delete set null,
+    created_at text not null
+  );
+
+  create index if not exists idx_audit_replay_runs_org_created on audit_replay_runs(org_id, created_at);
+  create index if not exists idx_audit_replay_runs_thread on audit_replay_runs(thread_id, created_at);
+
+  insert into schema_migrations(version, name, applied_at)
+  values (19, 'audit_replay', datetime('now'));
+`;

AgentCompany-New/src/main/database/schema.ts

@@ -17,6 +17,7 @@ import { identityAccessSchema } from "./migrations/015-identity-access";
 import { orgGovernanceSchema } from "./migrations/016-org-governance";
 import { operationsControlsSchema } from "./migrations/017-operations-controls";
 import { sdlcControlsSchema } from "./migrations/018-sdlc-controls";
+import { auditReplaySchema } from "./migrations/019-audit-replay";
 
 interface Migration {
   version: number;
@@ -43,6 +44,7 @@ const MIGRATIONS: Migration[] = [
   { version: 16, name: "org_governance", sql: orgGovernanceSchema },
   { version: 17, name: "operations_controls", sql: operationsControlsSchema },
   { version: 18, name: "sdlc_controls", sql: sdlcControlsSchema },
+  { version: 19, name: "audit_replay", sql: auditReplaySchema },
 ];
 
 const SCHEMA_VERSION = MIGRATIONS[MIGRATIONS.length - 1].version;