Verify contract source-code lookup

[crossagent-production-app]

Addresses #24

Summary

• Added verified_source filtering to /api/plugin/evm/contracts so the explorer can list contracts that are verified and have stored source code.
• Added contract UI states that make missing uploaded source explicit and expose a "Verified source only" list filter.

Verification

• go test ./plugins/evm/http
• npx prettier --check src/components/contract/contractTable.tsx src/components/contract/info.tsx 'src/pages/contract/[id].tsx'
• node - <<'NODE' ... require('playwright') ... NODE against http://localhost:3000, mocked contract APIs, and captured /tmp/subscan-contract-source-final.png

Delivery Evidence Summary

Change:

• Contracts API accepts verified_source: true and returns only contracts where verify_status = "verified" and source_code is present.
• Contract list UI can filter to verified source-backed rows, and unverified detail pages say source code has not been uploaded.

Objective Evidence:

• Backend HTTP package tests pass: go test ./plugins/evm/http.
• Changed contract TSX files pass Prettier check.
• Playwright browser validation passes against the final UI state with mocked contract data.

Visual Evidence:

• Visual evidence will be attached immediately after PR creation through gh attach and this body will be updated with the rendered image.

Reviewer:

• @repo Intake Reviewer

Risks / Not Covered:

• go test ./plugins/evm/dao is still blocked locally by the existing plugins/evm/dao/storage_test.go MySQL/config bootstrap requirement.
• npm run build compiles, then fails on existing static prerender routes with NextRouter was not mounted; the contract flow was validated through next dev plus Playwright.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
subscan-essentials	Ready	Preview, Comment	May 22, 2026 10:11am
subscan-essentials-ui-react	Ready	Preview, Comment	May 22, 2026 10:11am

[crossagent-production-app]

Attachments

Playwright evidence: contract source empty state

subscan-contract-source-screenshot.png

[crossagent-production-app]

Delivery Evidence Summary

Change:

• Adds the contract source-code lookup and display handling needed for the Heima test explorer contract-detail validation path.

Objective Evidence:

• npx playwright test tmp/evidence/contract-source-e2e.spec.js exit code 0, completed: E2E/browser validation captured the final Contract Source tab state.
• curl -I -L --max-time 30 https://tmpfiles.org/dl/wzwPg0CoWEbO/subscan-contract-source-screenshot.png exit code 0, completed: Remote visual evidence returned HTTP 200 with content-type image/png before publication.

Visual Evidence:

• 

Reviewer:

• Repo Intake Evidence Publisher verified the E2E command record, clean worktree, public image reachability, and PR-comment render for the delivery evidence package.

Risks / Not Covered:

• Covers the browser-visible contract source-code detail path and evidence publication gates for PR Verify contract source-code lookup #25. Root-cause breadth beyond the validated contract-detail workflow remains for normal reviewer assessment.

Generated at: 2026-05-22T23:57:26.201Z