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Adds executionTimeout() route-level middleware that enforces a 15s hard deadline on prepare/quote handlers. If the handler doesn't respond within the timeout, a 504 EXECUTION_TIMEOUT is sent. Applied to 17 endpoints across 6 route files: - swap: /quote, /prepare - staking: /prepare-enter, /prepare-exit, /prepare-claim - avax-swap: /quote, /prepare - avax-lending: /prepare-supply, /prepare-redeem, /prepare-borrow, /prepare-repay - avax-liquid-staking: /prepare-stake, /prepare-request-unlock, /prepare-redeem - dca: /prepare-create, /prepare-cancel Prevents silent hangs when RPCs are congested and never respond.
…ross all Base chain modules Adds 8 new error codes to errorCodes.ts: - INSUFFICIENT_BALANCE (400), INSUFFICIENT_LP_BALANCE (400) - NO_LIQUIDITY (400), NO_LP_POSITION (400), NO_REWARDS (400) - EXECUTOR_NOT_CONFIGURED (500) - ORDER_UNAUTHORIZED (403), ORDER_INACTIVE (400) Converts ~20 raw throw new Error() to throw new AppError() in: - prepare-enter-strategy, prepare-exit-strategy, prepare-claim-rewards - get-quote, prepare-cancel-order, get-orders - aerodrome-swap, aerodrome.service, swap-provider, protocols Before: all Base chain errors returned generic 500 INTERNAL_ERROR. After: semantic HTTP status codes (400/403/404/502) with structured error bodies matching the Avalanche modules pattern.
Adds config/demo.ts with: - Pinned contract addresses (Executor, Adapter, DCAVault) - Pinned Aerodrome protocol addresses (Router, Factory, Voter) - Canonical demo flow: ETH swap → Add Liquidity → Stake → Claim → Exit - Demo tokens and pool references for WETH/USDC volatile - isDemoMode() helper (NODE_ENV=demo or DEMO_MODE=true) - Wider timeouts (20s exec, 5s RPC) and slippage (2%) for live demos Updates .env.example with: - BASE_RPC_URLS / AVAX_RPC_URLS multi-RPC documentation - AVAX_EXECUTOR_ADDRESS placeholder - NODE_ENV options (development/demo/production) - DEMO_MODE flag - ALLOWED_ORIGINS documentation
Adds hexagonal architecture ports for future bridge integration: types/cross-chain.ts — Shared types: - MessagingProtocol (wormhole | ccip | layerzero | lifi) - MessageStatus (pending → confirming → relayed → executed | failed) - CrossChainRoute, CrossChainFee, ExecuteRouteResult, etc. domain/ports/CrossChainMessagingPort.ts — Single protocol adapter: - getRoutes(): find routes for a source→dest transfer - estimateFee(): lightweight fee estimation - executeRoute(): prepare unsigned transactions - getMessageStatus(): track in-flight messages domain/ports/RoutingPort.ts — Multi-protocol aggregator: - getRoutes(): queries all messaging adapters, returns best route - executeRoute(): delegates to the correct adapter - getRouteStatus(): track status Interface only — no implementation. Future adapters (Wormhole, CCIP, LayerZero, LI.FI) will implement CrossChainMessagingPort.
H10 — config/wallet-roles.ts: - Documents 4 wallet roles: USER, USER_ADAPTER, DCA_EXECUTOR, TREASURY - Defines per-transaction limits for DCA executor (0.5 ETH max single, 5 ETH session) - ExecutionAuditEntry interface for DCA action logging H11 — DEPLOY_CHECKLIST.md: - Pre-deploy: contract addresses, RPC endpoints, schema alignment, rate limits - Deploy steps: tag, build, health check, smoke test - Post-deploy: verification steps and rollback procedure
Feat/sprint stability
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