First draft with no security xd

app_database.sql

@@ -0,0 +1,33 @@
+CREATE TABLE users (
+    user_id BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
+    username VARCHAR(100) UNIQUE NOT NULL,
+    email VARCHAR(255) UNIQUE NOT NULL,
+    password_hash CHAR(64) DEFAULT NULL, -- SHA256 hash or similar
+    api_key CHAR(64) UNIQUE NOT NULL, -- for API authentication
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    last_login TIMESTAMP NULL DEFAULT NULL,
+    status ENUM('active','inactive','banned') NOT NULL DEFAULT 'active'
+);
+
+CREATE TABLE device_tokens (
+    token_id CHAR(36) NOT NULL PRIMARY KEY, -- UUID
+    user_id BIGINT NOT NULL,                -- Foreign key
+    platform ENUM('ios','android','web') NOT NULL,
+    token VARBINARY(512) NOT NULL,          -- encrypted token
+    status ENUM('active','invalid','expired') NOT NULL DEFAULT 'active',
+    app_version VARCHAR(50),
+    locale VARCHAR(10),
+    topics VARCHAR(255),
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    last_seen_at TIMESTAMP NULL DEFAULT NULL,
+    last_successful_delivery TIMESTAMP NULL DEFAULT NULL,
+    last_failed_delivery TIMESTAMP NULL DEFAULT NULL,
+
+    CONSTRAINT fk_user FOREIGN KEY (user_id) REFERENCES users(user_id)
+        ON DELETE CASCADE
+);
+
+-- Indexes for performance
+CREATE INDEX idx_user_id ON device_tokens(user_id);
+CREATE INDEX idx_platform ON device_tokens(platform);
+CREATE INDEX idx_topics ON device_tokens(topics);