refactor: remove jupiter swapper (replaced by relay)

[kaladinlight]

Description

Remove the Jupiter swapper entirely — Relay (which uses Jupiter under the hood) has fully replaced it.

Deleted:

• packages/swapper/src/swappers/JupiterSwapper/ — full implementation (swapper, endpoints, IDL, helpers, constants)
• headers/csps/jupiter.ts — CSP config for Jupiter API
• src/components/.../SwapperIcon/jupiter-icon.svg — icon asset
• src/constants/urls.ts — only contained Jupiter URLs

Removed from config/state:

• SwapperName.Jupiter enum member and all switch/record branches
• JupiterSwap feature flag (preferencesSlice, config.ts, vite-env.d.ts, .env, mock store)
• VITE_JUPITER_API_URL from swapper config type, app config, public-api config/env
• jupiterQuoteResponse field from trade step type
• Jupiter-specific protocol fee validation in validateTradeQuote.ts
• @jup-ag/api dependency from swapper package and root pnpm override
• isSolBuyAssetId parameter from getEnabledSwappers (only used by Jupiter)
• Jupiter entries from CSP index, swap-widget icons/colors, public-api rates

Relocated:

• COMPUTE_UNIT_MARGIN_MULTIPLIER → inlined in solana-utils/getUnsignedSolanaTransaction.ts (still needed by Relay)
• SolanaLogsError → moved to packages/swapper/src/utils.ts (still needed by error handling UI)

Risk

Medium — removes a swapper that is already superseded by Relay. No new on-chain transaction types introduced. Relay continues to handle all Solana swaps.

Solana swaps via Relay are unaffected. No other protocols, wallets, or contract interactions change.

Testing

Engineering

• Verify Solana swaps still work via Relay
• Verify type-check and lint pass (confirmed locally)
• Verify no references to SwapperName.Jupiter remain in source

Operations

• Confirm Solana swaps execute correctly in preview (routed through Relay)
• Confirm no UI references to "Jupiter" appear in the swap flow

🤖 Generated with Claude Code

Summary by CodeRabbit

Release Notes

• Removed Features
  • Jupiter is no longer available as a swap provider option in the application

[coderabbitai]

Important

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Run ID: d655f652-908a-4715-b55d-f053ed478452

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📝 Walkthrough

Walkthrough

This pull request removes all Jupiter swapper integration from the codebase, including the Jupiter API dependency, environment variables, feature flags, type definitions, and all Jupiter-specific implementations across swapper, widget, and main application layers.

Changes

Cohort / File(s)	Summary
Environment & Dependencies .env, package.json, packages/swapper/package.json, packages/public-api/.env.example	Removed Jupiter feature flag, API dependency pins, and JUPITER_API_URL environment variable entries.
Type Definitions & Enums packages/swap-widget/src/types/index.ts, packages/swapper/src/types.ts, src/vite-env.d.ts	Removed SwapperName.Jupiter enum member, VITE_JUPITER_API_URL config property, VITE_FEATURE_JUPITER_SWAP environment typing, and jupiterQuoteResponse field from TradeQuoteStep.
Jupiter Swapper Implementation packages/swapper/src/swappers/JupiterSwapper/...	Removed entire Jupiter swapper module including JupiterSwapper.ts, endpoints.ts, errorPatterns.ts, idls/referral.ts, and all helper utilities (helpers.ts, constants.ts, jupiterService.ts).
Swapper API Functions packages/swapper/src/swappers/JupiterSwapper/swapperApi/getTradeRate.ts, packages/swapper/src/swappers/JupiterSwapper/swapperApi/getTradeQuote.ts	Removed Jupiter trade-rate and trade-quote API implementations that handled quote fetching, fee computation, and swap instruction generation.
Swapper Registry & Exports packages/swapper/src/index.ts, packages/swapper/src/constants.ts, headers/csps/index.ts, headers/csps/jupiter.ts	Removed Jupiter swapper registry entries, re-exports from index, and CSP module for Jupiter API connectivity.
Configuration & URLs src/constants/urls.ts, src/config.ts, packages/public-api/src/config.ts, packages/public-api/src/env.ts	Removed JUPITER_BASE_API_URL and JUPITER_API_URL constants, and Jupiter API URL configuration validators.
Swapper Selection & State src/state/helpers.ts, src/state/slices/preferencesSlice/preferencesSlice.ts, src/test/mocks/store.ts	Removed Jupiter from enabled swapper logic, cross-account support checks, feature-flag type, and mock store state.
API Query Logic src/state/apis/swapper/swapperApi.ts, src/state/apis/swapper/selectors.ts, src/state/apis/swapper/helpers/validateTradeQuote.ts, src/state/slices/tradeQuoteSlice/selectors.ts	Removed Jupiter-specific query filters, parameters, and validation branches; updated enabled-swapper selector signatures.
UI Components & Display packages/swap-widget/src/constants/swappers.ts, src/components/MultiHopTrade/components/TradeInput/components/SwapperIcon/SwapperIcon.tsx	Removed Jupiter icon SVG mapping, color definition, and UI component case handling.
Utility Relocation packages/swapper/src/utils.ts, packages/swapper/src/solana-utils/getUnsignedSolanaTransaction.ts	Added SolanaLogsError class to main utils; moved COMPUTE_UNIT_MARGIN_MULTIPLIER constant from Jupiter module to local usage in transaction utility.
Rate Query Updates packages/public-api/src/routes/rates/getRates.ts	Removed Jupiter from enabled swapper names in rate-query endpoint.

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Poem

🐰 A Swift Farewell to Jupiter's Light

Out goes the swapper, the code bids goodbye,
Jupiter's endpoints now graze in the sky.
With rm and delete, we trim down the tree,
Constants and queries dissolve, now set free!
No more cross-checking those Solana pathways—
Our codebase springs forward in cleaner-edged ways! 🌙✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely summarizes the main change: removing the Jupiter swapper implementation in favor of the Relay swapper.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch remove-jupiter-swapper

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