Add central live map backend: chunk/player ingest, Vantage sidecar supervisor and proxy

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DjMbLQujBHunCCu5GpsHaT

panel/server/src/db.rs

@@ -555,6 +555,9 @@ const MIGRATIONS: &[&str] = &[
     );
     CREATE INDEX guild_wallet_transactions_recent ON guild_wallet_transactions(guild_id,server_id,id DESC);
     "#,
+    r#"
+    ALTER TABLE game_servers ADD COLUMN live_map_enabled INTEGER NOT NULL DEFAULT 0;
+    "#,
 ];
 
 pub async fn connect(data_dir: &Path) -> Result<SqlitePool> {