Remove Crab chain support

[boundless-forest]

No description provided.

[github-actions]

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Commit: 556e99e
Preview: https://migration-n4dl6jeqf-itering.vercel.app

[Copilot]

Pull request overview

This PR removes Crab chain support from the app and introduces a small testing setup to validate new URL-based network selection behavior.

Changes:

• Drops Crab network configuration, assets, and UI conditionals, leaving Darwinia as the only supported network in the app.
• Refactors header initialization logic into a reusable helper that derives initial network/account from URL search params, and adds Vitest-based unit tests for this logic.
• Adds a basic Vitest + Testing Library + jsdom setup for the app package.

Reviewed changes

Copilot reviewed 18 out of 21 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
yarn.lock	Adds dependency entries for Vitest, Testing Library, jsdom, and their transitive dependencies required by the new test setup.
packages/app/vite.config.ts	Extends the Vite config with a test block for Vitest (jsdom environment, setup file, globals).
packages/app/src/test/setup.ts	Registers @testing-library/jest-dom matchers globally for Vitest.
packages/app/src/pages/MultisigAccountMigrationSummary.tsx	Removes the “How to migrate” Crab-specific footer link from the migration summary page.
packages/app/src/components/TokensBalanceSummary/index.tsx	Simplifies token icon handling by always using generic RING/KTON icons, removing Crab-specific icons and logic.
packages/app/src/components/MultisigMigrationStatus/index.tsx	Removes Crab-specific “How to migrate” footer link from multisig migration status component.
packages/app/src/components/MultisigMigrationProgressTabs/index.tsx	Removes Crab/CKTON icons and hard-codes token icons to generic RING/KTON while retaining commented-out asset UI.
packages/app/src/components/MultisigMigrationProcess/index.tsx	Removes Crab-specific “How to migrate” footer link from multisig migration process view.
packages/app/src/components/MigrationSummary/index.tsx	Cleans up unused imports (Crab-related icons, helpers) and delegates balance display to TokensBalanceSummary.
packages/app/src/components/MigrationStatus/index.tsx	Drops Crab/CKTON icons and forces migration status UI to use generic RING/KTON icons.
packages/app/src/components/MigrationProcess/index.tsx	Removes Crab-specific “How to migrate” footer link from the single-account migration process view.
packages/app/src/components/Header/index.tsx	Replaces inline URL-parsing logic (including Crab-as-default) with a helper that picks the first supported network (now Darwinia) and optionally preselects an account.
packages/app/src/components/Header/getInitialWalletParamsFromUrlSearch.ts	New helper that parses network and account from the query string, defaulting to the first supported network or undefined if none.
packages/app/src/components/Header/__tests__/getInitialWalletParamsFromUrlSearch.test.ts	New Vitest test file covering fallback/default behavior and matching behavior for getInitialWalletParamsFromUrlSearch.
packages/app/src/assets/images/crab.svg	Removes the Crab logo asset.
packages/app/src/assets/images/ckton.svg	Removes the CKTON logo asset.
packages/app/package.json	Adds Vitest + watch script and devDependencies (vitest, Testing Library, jsdom) for React/component testing.
packages/app-utils/src/others.ts	Updates comment on createMultiSigAccount to remove hard-coded Crab/Pangoro prefix mention and describe the generic prefix usage.
packages/app-types/src/wallet.ts	Updates ChainName union to remove "Crab", keeping "Pangolin", "Darwinia", and "Pangoro".
packages/app-config/src/supportedNetworks.ts	Changes supportedNetworks to include only darwinia, effectively dropping Crab from selectable networks in the UI.
packages/app-config/src/chains/crab.ts	Removes the Crab chain configuration entirely.

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