SQLcl: MCP Server & SQL Prompt

Description:
When exporting DBMS_SCHEDULER objects, including create_job, set_attribute, and enable calls, SQLcl projects emits schema-qualified object names even if emitSchema: false is set in the project configuration.

Example affected calls:

• dbms_scheduler.create_job
• dbms_scheduler.set_attribute
• dbms_scheduler.enable

Expected behavior:
When emitSchema: false is enabled, SQLcl should generate DBMS_SCHEDULER statements without explicit schema names, using just the object name.