Fixed vendor share sorting

Vendor analytics became easier to scan with corrected share sorting behavior.

This release came from PR #41 and is now part of the xpenser release archive. It gives people evaluating an open-source expense tracker a clearer view of how the product has improved over time.

What changed

• Fixed sorting for vendor share rows.
• Kept percentage-based vendor analysis predictable.
• Protected vendor analytics from misleading order changes.

Why it matters

Sorting errors can make a finance report harder to trust. Correct ordering helps users focus on the vendors that matter most.

Where it fits

This strengthens the merchant and vendor analysis surface introduced earlier.

For a broader product overview, start with the xpenser home page. Developers can also explore the personal finance API and MCP tools, while self-hosters can review the self-hosted personal finance tracker page.