feat: add autocomplete search with Zustand store and API layer

- Add PokemonAutoComplete atom component using Ant Design
- Implement API layer with axios for Pokémon data fetching
- Create Zustand store for centralized state management
- Add autocomplete suggestions with real-time filtering
- Update SearchBar molecule to use autocomplete functionality
- Load all Pokémon names on app initialization
- Add path aliases for cleaner imports (@api, @stores)
- Remove old service layer in favor of API layer
- Maintain intentional bugs for debugging practice
- Update project structure and documentation

src/components/atoms/PokemonInput.tsx

@@ -0,0 +1,24 @@
+import React from 'react';
+import { Input } from 'antd';
+
+interface PokemonInputProps {
+  value: string;
+  onChange: (value: string) => void;
+  placeholder?: string;
+}
+
+export const PokemonInput: React.FC<PokemonInputProps> = ({
+  value,
+  onChange,
+  placeholder = 'Enter Pokémon name...'
+}) => {
+  return (
+    <Input
+      value={value}
+      onChange={(e) => onChange(e.target.value)}
+      placeholder={placeholder}
+      size="large"
+      allowClear
+    />
+  );
+};