merge: wave 2 executor (01-02) into main

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

paperclip-reference/packages/db/src/index.ts

@@ -0,0 +1,22 @@
+export {
+  createDb,
+  getPostgresDataDirectory,
+  ensurePostgresDatabase,
+  inspectMigrations,
+  applyPendingMigrations,
+  reconcilePendingMigrationHistory,
+  type MigrationState,
+  type MigrationHistoryReconcileResult,
+  migratePostgresIfEmpty,
+  type MigrationBootstrapResult,
+  type Db,
+} from "./client.js";
+export {
+  runDatabaseBackup,
+  runDatabaseRestore,
+  formatDatabaseBackupResult,
+  type RunDatabaseBackupOptions,
+  type RunDatabaseBackupResult,
+  type RunDatabaseRestoreOptions,
+} from "./backup-lib.js";
+export * from "./schema/index.js";