Transaction lifecycle updates

[austin047]

Description

• Added the refund to the transaction
• Added mark as recurring to the transaction
• Added reminder
• Updated to the AI chat landing page

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore

[sourceant]

Code Review Summary

This PR introduces a comprehensive lifecycle update for transactions, including refund support, recurring transaction rules, and a new 'Reminders' feature. It involves a database schema bump to version 7 and substantial UI additions.

🚀 Key Improvements

• Support for linked refunds (linking income to original expenses).
• Implementation of recurring transaction rules (period, interval, end dates).
• Full CRUD and sync support for a new Reminders entity.
• Updated AI chat landing page with enhanced suggestion chips and icons.

💡 Minor Suggestions

• Add safeguard limits to infinite loops in remote data sources.
• Avoid using .then() inside unawaited blocks in repositories to prevent complex race conditions.

[sourceant]

Review complete. See the overview comment for a summary.

[nfebe]

We need to review the compactness of the intent and the add page in general. I leftt a comment regarding this in the group chat.