feat: ban list with dashboard widget, owner add/edit bans

backend/db.js

@@ -250,6 +250,20 @@ async function initSchema(connection) {
     INDEX idx_user (user_id)
   ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`);
 
+  await createIfNotExists('bans', `CREATE TABLE bans (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    player_name VARCHAR(50) NOT NULL,
+    player_uid VARCHAR(50),
+    reason TEXT,
+    type ENUM('ban','mute','warn','other') NOT NULL DEFAULT 'ban',
+    duration VARCHAR(20) DEFAULT '',
+    ticket_id INT,
+    created_by INT,
+    status ENUM('active','expired','appealed','lifted') NOT NULL DEFAULT 'active',
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    expires_at DATETIME
+  ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`);
+
   await createIfNotExists('audit_logs', `CREATE TABLE audit_logs (
     id INT AUTO_INCREMENT PRIMARY KEY,
     user_id INT,
@@ -273,6 +287,7 @@ async function migrateAdditions(db) {
   try { await db.execute("ALTER TABLE tickets MODIFY status ENUM('pending','processing','awaiting_info','appealing','resolved','rejected','closed') NOT NULL"); } catch {}
   try { await db.execute("ALTER TABLE users ADD COLUMN source ENUM('netease','skin') NOT NULL DEFAULT 'netease'"); } catch {}
   try { await db.execute(`CREATE TABLE IF NOT EXISTS user_servers (user_id INT NOT NULL, group_name VARCHAR(100) NOT NULL, server_name VARCHAR(100) NOT NULL, UNIQUE KEY uk_user_server (user_id, group_name, server_name), INDEX idx_user (user_id)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`); } catch {}
+  try { await db.execute(`CREATE TABLE IF NOT EXISTS bans (id INT AUTO_INCREMENT PRIMARY KEY, player_name VARCHAR(50) NOT NULL, player_uid VARCHAR(50), reason TEXT, type ENUM('ban','mute','warn','other') NOT NULL DEFAULT 'ban', duration VARCHAR(20) DEFAULT '', ticket_id INT, created_by INT, status ENUM('active','expired','appealed','lifted') NOT NULL DEFAULT 'active', created_at DATETIME DEFAULT CURRENT_TIMESTAMP, expires_at DATETIME) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`); } catch {}
 
   try { await db.execute(`CREATE TABLE IF NOT EXISTS polls (id INT AUTO_INCREMENT PRIMARY KEY, title VARCHAR(200) NOT NULL, description TEXT, options JSON NOT NULL, group_name VARCHAR(100) NOT NULL DEFAULT '', server_name VARCHAR(100) NOT NULL DEFAULT '', start_time DATETIME, end_time DATETIME, active TINYINT(1) NOT NULL DEFAULT 1, created_by INT, created_at DATETIME DEFAULT CURRENT_TIMESTAMP, INDEX idx_active (active), INDEX idx_group_server (group_name, server_name)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`); } catch {}
   try { await db.execute(`CREATE TABLE IF NOT EXISTS poll_votes (id INT AUTO_INCREMENT PRIMARY KEY, poll_id INT NOT NULL, user_id INT NOT NULL, option_index INT NOT NULL, created_at DATETIME DEFAULT CURRENT_TIMESTAMP, UNIQUE KEY uk_poll_user (poll_id, user_id), INDEX idx_poll (poll_id)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`); } catch {}