Initial Release v1.0.0: Full feature set with Docker automation, Nginx/Alpine stack

app/Core/Database.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Core;
+
+use PDO;
+use PDOException;
+
+class Database {
+    private static $instance = null;
+    private $pdo;
+
+    private function __construct() {
+        $dbPath = ROOT . '/app/Database/database.sqlite';
+        try {
+            $this->pdo = new PDO("sqlite:" . $dbPath);
+            $this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+            $this->pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+        } catch (PDOException $e) {
+            die("Database Connection Failed: " . $e->getMessage());
+        }
+    }
+
+    public static function getInstance() {
+        if (self::$instance === null) {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+
+    public function getConnection() {
+        return $this->pdo;
+    }
+
+    // Helper to run query with params
+    public function query($sql, $params = []) {
+        $stmt = $this->pdo->prepare($sql);
+        $stmt->execute($params);
+        return $stmt;
+    }
+}