Restorm v1.0.6

Fixes:

• A very large project now fails to save with a clear message instead of freezing. If a project grows too big to write to disk in one piece — which can happen after importing an unusually large API schema — Restorm now tells you plainly that it is too large to save, rather than crashing or failing silently.
• Clearer error reporting behind the scenes. Cancelling a “Save as” dialog is no longer recorded as an error, and a failed import now reports its real cause — so the genuine problems are easier to spot and fix.