feat: comprehensive Biome linting fixes and code quality improvements

Major code quality overhaul addressing 58% of all linting issues:

• Type Safety Improvements:
  - Replace all any types with proper TypeScript interfaces
  - Fix Map component shadowing (renamed to CountryMap)
  - Add comprehensive custom error classes system
  - Enhance API route type safety

• Accessibility Enhancements:
  - Add explicit button types to all interactive elements
  - Implement useId() hooks for form element accessibility
  - Add SVG title attributes for screen readers
  - Fix static element interactions with keyboard handlers

• React Best Practices:
  - Resolve exhaustive dependencies warnings with useCallback
  - Extract nested component definitions to top level
  - Fix array index keys with proper unique identifiers
  - Improve component organization and prop typing

• Code Organization:
  - Automatic import organization and type import optimization
  - Fix unused function parameters and variables
  - Enhanced error handling with structured error responses
  - Improve component reusability and maintainability

Results: 248 → 104 total issues (58% reduction)
- Fixed all critical type safety and security issues
- Enhanced accessibility compliance significantly
- Improved code maintainability and performance

components/magicui/neon-gradient-card.tsx

@@ -1,9 +1,9 @@
 "use client";
 
 import {
-  CSSProperties,
-  ReactElement,
-  ReactNode,
+  type CSSProperties,
+  type ReactElement,
+  type ReactNode,
   useEffect,
   useRef,
   useState,
@@ -102,7 +102,7 @@ export const NeonGradientCard: React.FC<NeonGradientCardProps> = ({
       const { offsetWidth, offsetHeight } = containerRef.current;
       setDimensions({ width: offsetWidth, height: offsetHeight });
     }
-  }, [children]);
+  }, []);
 
   return (
     <div