Refactor styles and remove legacy CSS files

[Timidan]

• Consolidated button styles and removed unused classes from SimulationResultsPage.css.
• Deleted SimulatorWorkbench.css as its styles are now integrated into other CSS files.
• Removed redundant styles from StackedOverview.css, TokenMovementsPanel.css, and design-tokens.css.
• Updated type definitions in contractInfo.ts, debug.ts, and transaction.ts by removing unused types.
• Refactored utility functions in diamondFacetFetcher.ts, resultFormatter.ts, traceDecoder modules, and universalTokenDetector.ts for improved readability and performance.
• Adjusted Vite configuration to optimize dependency inclusion and removed unnecessary buffer alias.
• Updated Vercel configuration to ensure correct API routing for blockscout services.
• Excluded test files from TypeScript compilation in tsconfig.app.json.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
web3-toolkit	Ready	Preview, Comment	May 6, 2026 2:19pm

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Restore legacy RPC settings migration

For users upgrading from a version that only has the old web3-toolkit:user-rpc-settings or web3-toolkit-universal-api-keys localStorage entries, this path now returns defaults plus any already-split secrets and never reads those legacy keys. That drops custom RPC mode/URLs and explorer API keys for direct upgraders, so the old migration should remain until those storage keys are no longer expected in the wild.

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[Copilot]

Pull request overview

This PR focuses on reducing legacy surface area (CSS + unused TS types), consolidating shared utilities/constants, and aligning build/runtime configuration with the current proxy routing approach (notably Blockscout + EDB).

Changes:

• Updated Vercel rewrites to add explicit /api/edb routing to edb-proxy and to route Blockscout proxies to upstream /api/* endpoints.
• Simplified Vite dependency optimization/aliasing (dropping the buffer optimize/alias) and excluded test files from the app TS build.
• Refactored/shared utilities and types (e.g., ZERO_ADDRESS, ensureArray, resolver source types), plus minor readability refactors (let→const) across several utility modules.

Reviewed changes

Copilot reviewed 128 out of 131 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
vite.config.ts	Removes buffer from optimizeDeps and drops the buffer alias; simplifies manual chunking.
vercel.json	Adds /api/edb→/api/edb-proxy rewrites and updates Blockscout rewrite destinations to include /api/:path*.
tsconfig.app.json	Excludes test/spec files from TypeScript compilation for the app build.
src/utils/universalTokenDetector.ts	Minor refactor (let→const) for default fallback values in detection flow.
src/utils/transaction-simulation/bridgeSimulation.ts	Minor refactor (let→const) for a libraries map object.
src/utils/traceDecoder/pcMapper.ts	Minor refactor (let→const) for a default tuple used during mapping.
src/utils/traceDecoder/jumpAnalysis.ts	Comment formatting + minor refactor (let→const) for promoted source file.
src/utils/traceDecoder/decodeTraceInit.ts	Minor refactor (let→const) for raw text capture.
src/utils/traceDecoder/callHierarchy.ts	Comment formatting cleanup.
src/utils/traceDecoder/analysisHelpers.ts	Comment formatting cleanup.
src/utils/solidity-layout/allocatorTypeHelpers.ts	Comment formatting cleanup.
src/utils/simulationArtifactTypes.ts	Introduces shared ensureArray helper alongside simulation artifact types.
src/utils/simulationArtifacts.ts	Re-exports/imports ensureArray from simulationArtifactTypes to centralize the helper.
src/utils/resultFormatter.ts	Minor refactor (let→const) for local formatting array.
src/utils/resolver/types.ts	Removes unsupported resolver sources from the Source union and config map.
src/utils/resolver/proxyResolver.ts	Uses shared ZERO_ADDRESS constant instead of a local literal.
src/utils/resolver/ContractResolver.ts	Removes unimplemented source cases (blockscout-ebd, whatsabi) from the switch.
src/utils/resolver/contractContext.ts	Uses shared ZERO_ADDRESS constant instead of a local literal.
src/utils/edbTraceConverter.ts	Switches ensureArray import to simulationArtifactTypes after extraction.
src/utils/diamondFacetFetcher.ts	Adjusts Blockscout URL construction to match new proxy rewrite behavior (no local /api prefix).
src/utils/cache/sourcifyCache.ts	Removes outdated reference to a legacy fetcher in documentation comments.
src/utils/addressConstants.ts	Adds shared address constants and isNativeToken helper.
src/types/transaction.ts	Removes unused AssetChange type definition.
src/types/index.ts	Refactors types barrel to re-export from chain/abi modules.
src/types/debug.ts	Removes unused RpcCapabilities type.
src/types/contractInfo.ts	Updates Chain import path and removes unused exported helper types.
src/types/chain.ts	Introduces a dedicated module for Chain and explorer-related types.
src/types/abi.ts	Defines ABIFetchResult locally (instead of importing via the barrel) and keeps ABI-related types grouped.
src/styles/TokenMovementsPanel.css	Removes unused CSS classes for token id and empty state styling.

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