add: better app data queries

crates/core/src/database/drivers/sql/create_app_data.sql

@@ -1,6 +1,5 @@
 CREATE TABLE IF NOT EXISTS app_data (
     id BIGINT NOT NULL PRIMARY KEY,
-    owner BIGINT NOT NULL,
     app BIGINT NOT NULL,
     k TEXT NOT NULL,
     v TEXT NOT NULL

crates/core/src/database/drivers/sql/create_apps.sql

@@ -8,5 +8,6 @@ CREATE TABLE IF NOT EXISTS apps (
     quota_status TEXT NOT NULL,
     banned INT NOT NULL,
     grants INT NOT NULL,
-    scopes TEXT NOT NULL
+    scopes TEXT NOT NULL,
+    data_used INT NOT NULL CHECK (data_used >= 0)
 )