[BUG][P0] Type inconsistency in src/app/help/page.tsx breaks build

[l0gic]

Describe the bug

The filteredContent useMemo in src/app/help/page.tsx returns different types depending on conditions:

• Returns string[] (topic keys) when there's no search query
• Returns { key, content, category }[] objects when searching

This causes TypeScript errors when accessing properties like key, content, and category.

To Reproduce

1. Open src/app/help/page.tsx
2. Run TypeScript type checking
3. Observe errors on line 295-327

Expected behavior

The filteredContent should always return a consistent type, or the code should handle the union type properly with type guards.

Possible Solution

Return a consistent object array structure for both cases, or use proper type guards before accessing properties.

Files Affected

• src/app/help/page.tsx:295-327

Discovered By

Automated build error analysis during dev server startup.