fix(docs): repair webapp tutorial build on spartan train

[AztecBot]

Why

PR #23971 was removed from the next merge queue at 2026-06-12T15:23:40Z. The failing merge-group run was CI3 run 27424805463 on gh-readonly-queue/next/pr-23971-fa063393c7d16e1484957ca86d0b2d53a81d9d48 (66597f3f1e56113db60a31224946b3c130c32289).

The failed job was ci, specifically shard x9-full:

• GitHub run: https://github.com/AztecProtocol/aztec-packages/actions/runs/27424805463
• CI shard log: http://ci.aztec-labs.com/4eea34658df3797a
• Nested CI log: http://ci.aztec-labs.com/1781277359755775
• Docs build log: http://ci.aztec-labs.com/646d705612721e2a

The docs webapp tutorial build failed with:

src/components/TwoPlayerLocal.tsx(67,20): error TS2339: Property 'connectTestAccount' does not exist on type 'NodeEmbeddedWallet'.
src/components/TwoPlayerLocal.tsx(68,30): error TS2339: Property 'getConnectedAccount' does not exist on type 'NodeEmbeddedWallet'.
[vite]: Rollup failed to resolve import "vite-plugin-node-polyfills/shims/buffer" from ".../yarn-project/stdlib/dest/aztec-address/index.js".

Fix

• Make the tutorial EmbeddedWallet.initialize() method return the tutorial subclass type explicitly, preserving connectTestAccount() and getConnectedAccount() for callers.
• Set Vite resolve.preserveSymlinks in the tutorial app and extension configs so linked @aztec/* packages resolve plugin-injected polyfill shims from the tutorial app install.

Verification

• git diff --check
• ./bootstrap.sh ci was attempted locally but this checkout has no root ci command and exits with Unknown command: ci.
• docs/examples/bootstrap.sh was attempted for the focused failing area, but this container is missing built toolchain artifacts (noir/noir-repo/target/release/nargo, l1-contracts/solc-0.8.30), so it stops before the CI-reported webapp tutorial TypeScript/Vite failures.

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Created by claudebox · group: slackbot