Extract components and hooks from oversized page files (563/561/520 LOC) into colocated _components/ and _hooks/ subdirectories. All three page.tsx files are now thin orchestrators under 300 LOC each (dsfa: 216, audit-llm: 121, quality: 163). Zero behavior changes. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>