feat(dashboard): payment history section after login (Bounty #18)

[crowniteto]

Bounty #18 — Add dashboard payment history after login (2000 MRG)

Claim

#1 (comment)

Summary

Implements a dedicated Payment History section in the authenticated dashboard. Users can access it by clicking Payments in the sidebar or top navigation after login.

Changes

• Main panel: Full payment history table with Type/Amount/Reference/Date columns, visible in the dashboard main area when the Payments section is active
• Rail card: Compact payment history card in the dashboard sidebar for quick reference
• Navigation: Sidebar "Payments" item and topnav "Payments" item now navigate to the payments section via openDashboardSection("payments")
• Data source: Derives payment rows from existing /api/ledger endpoint — no backend changes needed
• Responsive: Desktop shows table layout, mobile collapses to stacked card layout with proper touch targets
• States: Loading spinner, error with retry, empty state for no payments

Payment Row Details

• Filters ledger entries for payment-relevant types: payment_verified, task_payment, platform_fee, project_reserve, task_reserve, token_mint
• Color-coded amounts: green (positive/verified), red (negative/payout), muted (neutral/escrow)
• Type icons match existing ledger icon system
• Shows from/to accounts and reference hash

Viewport Checks

• 1366×900: ✅ Full table layout
• 768×900: ✅ Table layout maintained
• 430×900: ✅ Mobile card layout
• 390×664: ✅ Mobile card layout
• 360×640: ✅ Mobile card layout

Testing

• npm test: 8/8 pass ✅
• npm run build:local: Success ✅
• go test ./... (backend): Pass ✅
• Test data: Ledger-derived entries from /api/ledger

Screenshots

(See PR diff for implementation details — CSS-only responsive with no logic regressions)

Bounty

• Type: Feature bounty
• Expected reward: 2000 MRG

[TUPM96]

Thanks for the PR. For bounty review, please add verification evidence in this PR before final review:

• screenshot, GIF, or video showing the changed flow/UI
• the test/build command(s) you ran and the result
• any relevant edge cases or viewport sizes checked

Evidence can be attached in a PR comment; images in comments count. If this PR has the star: missing label, please also star this repository so bounty eligibility can be verified.

[TUPM96]

Thanks for the contribution and for taking a swing at the payment history bounty. This PR is being closed because the #18 dashboard payment history work has now been merged through PR #86.

Your PR is not being treated as ignored; it helped show there was interest in the flow. For future bounty work, please keep the branch rebased, keep CI/workflows untouched, include runtime screenshots or video evidence, and avoid duplicating an already-merged bounty implementation.