test(dashmint-lab): add Playwright e2e suite

[thephez]

Summary

• Adds a Playwright e2e suite for dashmint-lab that runs against real Dash Platform testnet — no mocks, no fixtures faking SDK responses. Browse-only coverage runs without credentials; auth-gated coverage activates when PLATFORM_MNEMONIC is set.
• Login fixture (loginViaModal, HAS_MNEMONIC) is ported from dashproof-lab and adapted to dashmint-lab's LoginModal strings, so auth-gated specs test.skip cleanly when no mnemonic is configured.
• Includes one chain-mutating spec — the SetPrice round-trip (list → update → unlist → re-open verify) — which is reversible (no funds move). Transfer, purchase, and burn writes are deliberately excluded.

Bug fix included

Caught by the e2e SetPrice spec on a leftover-state run: SetPriceModal was treating $price === 0n as "listed" while every other surface (CardTile.hasPrice, dashmint-lite) treats zero as unlisted. Aligned SetPriceModal and added a Vitest regression test.

Summary by CodeRabbit

• Bug Fixes

  • SetPrice modal now correctly treats zero price as unlisted instead of a current price.

• Tests

  • Added comprehensive end-to-end test suite covering authentication flows, card browsing, marketplace operations, and pricing functionality.

• Chores

  • Updated testing infrastructure, configuration, and documentation.

[coderabbitai]

📝 Walkthrough

Walkthrough

This change introduces comprehensive end-to-end testing infrastructure for dashmint-lab using Playwright, including configuration, custom fixtures with login helpers, and multiple test suites covering authenticated flows, browsing, card interactions, and modals. Supporting updates include documentation, npm scripts, a component logic adjustment for price handling, and Vitest configuration changes.

Changes

Cohort / File(s)	Summary
Test Infrastructure & Configuration playwright.config.ts, vite.config.ts, package.json, .gitignore	Establishes Playwright E2E setup with env-var loading, Vite dev server integration on port 5180, test script commands (test:e2e, test:e2e:ui), and dependencies (@playwright/test, dotenv). Vitest is configured to exclude test/e2e/** files.
Test Fixtures & Utilities test/e2e/fixtures.ts	Introduces custom test fixture that boots the app against real Dash Platform testnet, waits for SDK connectivity ("Connected" signal), and provides loginViaModal() helper for mnemonic-based auth. Re-exports rawTest for tests bypassing preconditions. Exports HAS_MNEMONIC flag and type utilities.
E2E Test Suites test/e2e/auth.spec.ts, test/e2e/browse.spec.ts, test/e2e/card.spec.ts, test/e2e/how-it-works.spec.ts, test/e2e/login-modal.spec.ts	Comprehensive test coverage: auth-gated flows (transfer, purchase, burn, logout, SetPrice round-trip), browse tabs and sorting, card owner/explorer links and copy-to-clipboard, "How it works" UI, and login modal state transitions. Auth-gated tests are skipped unless PLATFORM_MNEMONIC is available; serial execution and skip guards included.
Documentation CLAUDE.md, README.md	Documents new Playwright E2E commands, test suite location, architecture notes (real testnet, no SDK mocks, auth gating semantics), and constraint that only SetPrice round-trip mutates chain state.
Component Logic & Unit Test Update src/components/SetPriceModal.tsx, test/SetPriceModal.test.tsx	Changes hasCurrentPrice from explicit undefined/null check to truthiness check on card.$price, affecting title and button labels. Adds unit test verifying zero-price handling as an unlisted state.

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Poem

🐰 Our test burrows grow wide and deep,
E2E sutures keeping features asleep,
Playwright hops through each auth and view,
From SetPrice round-trips to fresh login brew,
Real testnet checks—no mocks, all true! 🌿

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 33.33% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and concisely summarizes the main change: adding a Playwright end-to-end test suite to dashmint-lab, which is the primary focus of this PR.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch test/dashmint-playwright

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@example-apps/dashmint-lab/vite.config.ts`:
- Around line 28-29: The Vitest config's include pattern only matches
"*.test.{ts,tsx}" so spec files are ignored; update the include array in
vite.config.ts (the include property used with Vitest) to include both
"**/*.test.{ts,tsx}" and "**/*.spec.{ts,tsx}" (e.g., add the spec glob alongside
the existing test glob) so tests named *.spec.ts or *.spec.tsx under test/ are
discovered.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 792a200e-1f35-4868-9cfa-e2a0b4409268

📥 Commits

Reviewing files that changed from the base of the PR and between c07cb08 and 544f249.

⛔ Files ignored due to path filters (1)

• example-apps/dashmint-lab/package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (14)

• example-apps/dashmint-lab/.gitignore
• example-apps/dashmint-lab/CLAUDE.md
• example-apps/dashmint-lab/README.md
• example-apps/dashmint-lab/package.json
• example-apps/dashmint-lab/playwright.config.ts
• example-apps/dashmint-lab/src/components/SetPriceModal.tsx
• example-apps/dashmint-lab/test/SetPriceModal.test.tsx
• example-apps/dashmint-lab/test/e2e/auth.spec.ts
• example-apps/dashmint-lab/test/e2e/browse.spec.ts
• example-apps/dashmint-lab/test/e2e/card.spec.ts
• example-apps/dashmint-lab/test/e2e/fixtures.ts
• example-apps/dashmint-lab/test/e2e/how-it-works.spec.ts
• example-apps/dashmint-lab/test/e2e/login-modal.spec.ts
• example-apps/dashmint-lab/vite.config.ts