Add migration cutover reconciliation journal

AgentCompany-New/src/main/database/migrations/028-migration-cutover-journal.ts

@@ -0,0 +1,62 @@
+export const migrationCutoverJournalSchema = `
+  create table if not exists migration_cutover_events (
+    id text primary key,
+    org_id text not null references organizations(id) on delete cascade,
+    migration_report_id text not null references migration_reports(id) on delete cascade,
+    rollback_snapshot_id text references rollback_snapshots(id) on delete set null,
+    event_type text not null,
+    actor_type text not null,
+    actor_id text,
+    payload_json text not null,
+    created_at text not null
+  );
+
+  create table if not exists migration_reconciliation_items (
+    id text primary key,
+    org_id text not null references organizations(id) on delete cascade,
+    migration_report_id text not null references migration_reports(id) on delete cascade,
+    rollback_snapshot_id text references rollback_snapshots(id) on delete set null,
+    source_event_id text not null,
+    target_type text not null,
+    target_id text not null,
+    reason text not null,
+    state text not null,
+    payload_json text not null,
+    created_at text not null,
+    resolved_at text,
+    resolved_by_employee_id text references employees(id) on delete set null,
+    unique(rollback_snapshot_id, source_event_id)
+  );
+
+  insert into migration_cutover_events(
+    id, org_id, migration_report_id, rollback_snapshot_id, event_type,
+    actor_type, actor_id, payload_json, created_at
+  )
+  select
+    'mce_' || lower(hex(randomblob(16))),
+    org_id,
+    migration_report_id,
+    id,
+    case active when 1 then 'rollback_snapshot_activated' else 'rollback_snapshot_created' end,
+    'system',
+    null,
+    json_object('sourceFingerprint', source_fingerprint, 'sourceDatabaseSha256', source_database_sha256),
+    created_at
+  from rollback_snapshots
+  where not exists (
+    select 1 from migration_cutover_events
+    where migration_cutover_events.rollback_snapshot_id = rollback_snapshots.id
+  );
+
+  create index if not exists idx_migration_cutover_events_org_created
+    on migration_cutover_events(org_id, created_at);
+  create index if not exists idx_migration_cutover_events_report
+    on migration_cutover_events(migration_report_id, created_at);
+  create index if not exists idx_migration_reconciliation_items_org_state
+    on migration_reconciliation_items(org_id, state, created_at);
+  create index if not exists idx_migration_reconciliation_items_report
+    on migration_reconciliation_items(migration_report_id, created_at);
+
+  insert into schema_migrations(version, name, applied_at)
+  values (28, 'migration_cutover_journal', datetime('now'));
+`;

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

@@ -26,6 +26,7 @@ import { taskRunProviderRequestSchema } from "./migrations/024-task-run-provider
 import { chatMessageDeliverySchema } from "./migrations/025-chat-message-delivery";
 import { browserPlatformGovernanceSchema } from "./migrations/026-browser-platform-governance";
 import { socialAuditRecordsSchema } from "./migrations/027-social-audit-records";
+import { migrationCutoverJournalSchema } from "./migrations/028-migration-cutover-journal";
 
 interface Migration {
   version: number;
@@ -61,6 +62,7 @@ const MIGRATIONS: Migration[] = [
   { version: 25, name: "chat_message_delivery", sql: chatMessageDeliverySchema },
   { version: 26, name: "browser_platform_governance", sql: browserPlatformGovernanceSchema },
   { version: 27, name: "social_audit_records", sql: socialAuditRecordsSchema },
+  { version: 28, name: "migration_cutover_journal", sql: migrationCutoverJournalSchema },
 ];
 
 const SCHEMA_VERSION = MIGRATIONS[MIGRATIONS.length - 1].version;