feat(store): fist stepts for implement ContributionStore for managing contributions in SQLite

src/Service/ContributionStore.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service;
+
+use PDO;
+
+class ContributionStore {
+    private PDO $pdo;
+
+    public function __construct(
+        private readonly string $dbPath = "%kernel.project_dir%/var/data/contributions.db",
+        private readonly ?int $retentionDays = null,
+    ){
+        if(!is_dir(\dirname($this->dbPath))){
+            mkdir(\dirname($this->dbPath), 0755, recursive: true);
+        }
+        $this->pdo = new PDO('sqlite:' . $this->dbPath);
+        $this->pdo->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
+        $this->prepareSchema();
+    }
+
+    private function prepareSchema():void{
+        $this->pdo->exec('
+            CREATE TABLE IF NOT EXISTS contributions (
+                provider TEXT NOT NULL,
+                date     TEXT NOT NULL,
+                count    INTEGER NOT NULL CHECK (count >= 0),
+                PRIMARY KEY (provider, date)
+            ) WITHOUT ROWID, STRICT
+        ');
+    }
+    
+}