feat: implement repository architecture with smart caching

- Add base repository interfaces and abstract classes
  - Implement separated read/write repositories for Domain and Username models
  - Add intelligent query caching with automatic invalidation
  - Include cache management service and CLI commands
  - Add comprehensive configuration for cache TTL and monitoring
  - Enhance performance through optimized data access patterns

app/Repositories/Contracts/ReadRepositoryInterface.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Repositories\Contracts;
+
+use Illuminate\Database\Eloquent\Collection;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Pagination\LengthAwarePaginator;
+
+interface ReadRepositoryInterface
+{
+    public function findById(int $id, array $columns = ['*']): ?Model;
+
+    public function findBy(string $column, mixed $value, array $columns = ['*']): ?Model;
+
+    public function all(array $columns = ['*']): Collection;
+
+    public function get(array $columns = ['*']): Collection;
+
+    public function paginate(int $perPage = 15, array $columns = ['*'], string $pageName = 'page'): LengthAwarePaginator;
+
+    public function whereIn(string $column, array $values, array $columns = ['*']): Collection;
+
+    public function where(string $column, mixed $operator, mixed $value = null): self;
+
+    public function whereNull(string $column): self;
+
+    public function whereNotNull(string $column): self;
+
+    public function whereBetween(string $column, array $values): self;
+
+    public function orderBy(string $column, string $direction = 'asc'): self;
+
+    public function limit(int $limit): self;
+
+    public function with(array $relations): self;
+
+    public function withCount(array $relations): self;
+
+    public function exists(): bool;
+
+    public function count(): int;
+
+    public function first(array $columns = ['*']): ?Model;
+
+    public function firstWhere(string $column, mixed $operator, mixed $value = null): ?Model;
+
+    public function pluck(string $column, ?string $key = null): Collection;
+
+    public function clearCache(): void;
+
+    public function clearCacheForModel(Model $model): void;
+}