feat: support create/drop database and schema from sidebar context menu

Add context menu actions for creating and dropping databases and schemas
directly from the sidebar tree. Supports MySQL, PostgreSQL, SQL Server,
ClickHouse, Oracle, and other server-based databases.

src/lib/databaseCapabilities.ts

@@ -52,6 +52,19 @@ export const TABLE_IMPORT_SUPPORTED_TYPES = new Set<DatabaseType>([
 
 export const TABLE_STRUCTURE_SUPPORTED_TYPES = new Set<DatabaseType>(["mysql", "postgres", "sqlite", "sqlserver"]);
 
+export const CREATE_DATABASE_SUPPORTED_TYPES = new Set<DatabaseType>([
+  "mysql",
+  "postgres",
+  "sqlserver",
+  "clickhouse",
+  "oracle",
+  "dameng",
+  "gaussdb",
+  "doris",
+  "starrocks",
+  "redshift",
+]);
+
 export const FIELD_LINEAGE_SUPPORTED_TYPES = new Set<DatabaseType>([
   "mysql",
   "postgres",