🎨 Palette: [Add confirmation dialog for delete action]

[shadowcoder8]

💡 What: Added a native browser confirm() dialog to the deletePayment function in frontend/payment-management.js, along with alert()s for success and failure.
🎯 Why: To prevent accidental data loss when a user clicks the delete button on a payment record, bringing the module in line with existing patterns (e.g., deleting a laborer).
📸 Before/After: Before, clicking delete immediately executed the API request. After, it prompts the user to confirm the action. (Verified via Playwright script).
♿ Accessibility: Prevents destructive actions without explicit user consent, which helps users who might misclick due to motor difficulties.

---

PR created automatically by Jules for task 3834727515281105084 started by @shadowcoder8

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.