Refactor code for improved readability and consistency

- Updated formatting in web-api.ts for better alignment and readability.
- Enhanced XML builders in xml.ts for clearer structure and maintainability.
- Improved test cases in s3-auth.test.ts and s3-operations.test.ts for better clarity and consistency.
- Refactored mock data in web-api.test.ts for improved readability.

src/db/files-ext.ts

@@ -111,10 +111,7 @@ export const softDeleteFile = async (bucketId: string, s3Key: string): Promise<b
   return result.rows.length > 0;
 };
 
-export const softDeleteFilesBatch = async (
-  bucketId: string,
-  keys: string[],
-): Promise<number> => {
+export const softDeleteFilesBatch = async (bucketId: string, keys: string[]): Promise<number> => {
   let deleted = 0;
   for (const key of keys) {
     const ok = await softDeleteFile(bucketId, key);

src/db/migrate.ts

@@ -12,10 +12,10 @@ export const runMigration = async (): Promise<void> => {
   // In source via bun --hot: import.meta.dir = .../src/db/
   const dir = import.meta.dir || '';
   const candidates = [
-    dir + '/../../schema.sql',  // from dist/
-    dir + '/../schema.sql',     // from src/ (bun --hot src/index.ts)
-    dir + '/../schema.sql',     // from src/db/ (bun --hot src/db/migrate.ts)
-    dir + '/schema.sql',        // from src/ (bun run db:migrate)
+    dir + '/../../schema.sql', // from dist/
+    dir + '/../schema.sql', // from src/ (bun --hot src/index.ts)
+    dir + '/../schema.sql', // from src/db/ (bun --hot src/db/migrate.ts)
+    dir + '/schema.sql', // from src/ (bun run db:migrate)
   ];
 
   let schemaSql: string | null = null;