feat: implement TASK-WP1-05 account deletion

apps/api/src/managed-storage.ts

@@ -184,6 +184,7 @@ export class ManagedStorage {
       CREATE TABLE IF NOT EXISTS managed_files (
         file_id TEXT PRIMARY KEY,
         file_kind TEXT NOT NULL CHECK (file_kind IN ('reference', 'generated', 'export', 'derived', 'sticker_original', 'sticker_thumbnail')),
+        owner_ref TEXT,
         relative_path TEXT NOT NULL UNIQUE,
         byte_size INTEGER NOT NULL CHECK (byte_size > 0),
         mime_type TEXT NOT NULL,
@@ -242,6 +243,10 @@ export class ManagedStorage {
       CREATE TRIGGER IF NOT EXISTS admin_operation_logs_no_delete
         BEFORE DELETE ON admin_operation_logs BEGIN SELECT RAISE(ABORT, 'admin_operation_logs_immutable'); END;
     `);
+    const managedFileColumns = this.database.prepare("PRAGMA table_info(managed_files)").all() as Array<{ name: string }>;
+    if (!managedFileColumns.some((column) => column.name === "owner_ref")) {
+      this.database.exec("ALTER TABLE managed_files ADD COLUMN owner_ref TEXT");
+    }
     this.migrateLegacyAdminOperationLogs();
     const initial = classifyCapacity(0, 0);
     this.database.prepare(`
@@ -479,9 +484,9 @@ export class ManagedStorage {
 
       const commit = this.database.transaction(() => {
         this.database.prepare(`
-          INSERT INTO managed_files (file_id, file_kind, relative_path, byte_size, mime_type, sha256, status, created_at)
-          VALUES (?, ?, ?, ?, ?, ?, 'committed', ?)
-        `).run(fileId, input.fileKind, destination.relativePath, byteSize, input.expectedMimeType, sha256, now());
+          INSERT INTO managed_files (file_id, file_kind, owner_ref, relative_path, byte_size, mime_type, sha256, status, created_at)
+          VALUES (?, ?, ?, ?, ?, ?, ?, 'committed', ?)
+        `).run(fileId, input.fileKind, input.ownerRef, destination.relativePath, byteSize, input.expectedMimeType, sha256, now());
         this.database.prepare(`
           UPDATE local_backend_storage_state SET managed_content_bytes = managed_content_bytes + ? WHERE singleton = 1
         `).run(byteSize);