Single File Mode

Enable with useMultipleFiles: false.

Mechanics:

• Initializes aggregator with resolved bundle path.
• Writes all schema content through in-memory collection.
• After generation, flushes aggregator and deletes sibling entries (keeps bundle only).
• Adjusts Prisma Client import to relative path if custom client output.
• Suppresses variant emission to avoid directory clutter.

Use when embedding schemas directly into application packages or publishing a lightweight distribution.