Smarter meal planning in this update:

• Auto-assign now avoids repeating the same dish twice when alternatives are available — smarter, more varied weekly plans.
• Adding multiple dishes is now faster: the form stays open after saving so you can add several in a row.
• Calendar sync fixed: events are now updated instead of duplicated when re-syncing.
• Onboarding simplified: dishes are now optional during setup — jump in and add them later if you prefer.

Various improvements and bug fixes.
