chore: prettier formatter drift across recent commits

Prettier reformatting on files touched in the wave 11.B sequence —
markdown italics _underscore-style_, single-line conditionals, minor
whitespace fixes. No semantic changes. .env.example reformatting left
unstaged (blocked by pre-commit hook).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/unit/document-folders-validators.test.ts

@@ -9,16 +9,14 @@ import {
 describe('document-folder validators', () => {
   it('accepts a valid create payload', () => {
     expect(createFolderSchema.safeParse({ name: 'Deals', parentId: null }).success).toBe(true);
-    expect(
-      createFolderSchema.safeParse({ name: 'Q1', parentId: 'abc-123' }).success,
-    ).toBe(true);
+    expect(createFolderSchema.safeParse({ name: 'Q1', parentId: 'abc-123' }).success).toBe(true);
   });
 
   it('rejects empty + over-long names', () => {
     expect(createFolderSchema.safeParse({ name: '', parentId: null }).success).toBe(false);
-    expect(
-      createFolderSchema.safeParse({ name: 'x'.repeat(201), parentId: null }).success,
-    ).toBe(false);
+    expect(createFolderSchema.safeParse({ name: 'x'.repeat(201), parentId: null }).success).toBe(
+      false,
+    );
   });
 
   it('rejects whitespace-only names', () => {