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/confetti.tsx

@@ -6,8 +6,9 @@ import type {
   Options as ConfettiOptions,
 } from "canvas-confetti";
 import confetti from "canvas-confetti";
+import type React from "react";
 import type { ReactNode } from "react";
-import React, {
+import {
   createContext,
   forwardRef,
   useCallback,
@@ -17,7 +18,7 @@ import React, {
   useRef,
 } from "react";
 
-import { Button, ButtonProps } from "@/components/ui/button";
+import { Button, type ButtonProps } from "@/components/ui/button";
 
 type Api = {
   fire: (options?: ConfettiOptions) => void;