refactor: achieve 100% biome compliance with comprehensive code quality improvements

- Fix all cognitive complexity violations (63→0 errors)
- Replace 'any' types with proper TypeScript interfaces and generics
- Extract helper functions and custom hooks to reduce complexity
- Fix React hook dependency arrays and useCallback patterns
- Remove unused imports, variables, and functions
- Implement proper formatting across all files
- Add type safety with interfaces like AIProcessingRequestWithSession
- Fix circuit breaker implementation with proper reset() method
- Resolve all accessibility and form labeling issues
- Clean up mysterious './0' file containing biome output

Total: 63 errors → 0 errors, 42 warnings → 0 warnings

lib/csp-monitoring.ts

@@ -19,7 +19,7 @@ export interface CSPAlert {
   severity: "low" | "medium" | "high" | "critical";
   type: "violation" | "bypass_attempt" | "policy_change" | "threshold_exceeded";
   message: string;
-  metadata: Record<string, any>;
+  metadata: Record<string, unknown>;
 }
 
 export class CSPMonitoringService {