fix: migrate test 02 swap to get-krk page; add VITE_ENABLE_LOCAL_SWAP to CI

- Update 02-max-stake-all-tax-rates.spec.ts to buy KRK via /app/get-krk
  instead of the removed cheats-page swap card
- Add VITE_ENABLE_LOCAL_SWAP=true to the webapp CI service so
  LocalSwapWidget renders in the e2e pipeline

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.woodpecker/e2e.yml

@@ -160,6 +160,7 @@ services:
         export VITE_LOCAL_RPC_PROXY_TARGET=http://anvil:8545
         export VITE_LOCAL_GRAPHQL_PROXY_TARGET=http://ponder:42069
         export VITE_SWAP_ROUTER=0x94cC0AaC535CCDB3C01d6787D6413C739ae12bc4
+        export VITE_ENABLE_LOCAL_SWAP=true
         export VITE_BASE_PATH=/app/
 
         # Overlay kraiken-lib from workspace (may be newer than baked-in image)