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

components/security/ThreatLevelIndicator.tsx

@@ -70,7 +70,16 @@ export function ThreatLevelIndicator({
 
       <div className="space-y-1">
         <div className="flex items-center gap-2">
-          <Badge variant={config.color as "default" | "secondary" | "destructive" | "outline"} className={classes.badge}>
+          <Badge
+            variant={
+              config.color as
+                | "default"
+                | "secondary"
+                | "destructive"
+                | "outline"
+            }
+            className={classes.badge}
+          >
             {config.text}
           </Badge>
           {score !== undefined && (