chore: fix anchor escrow program tests

[a-hariti]

Scope: tokens/escrow/anchor → tests

The current
TLDR; I upgraded all the package.json deps to latest and fixed the TS config & ESM/CJS interop bugs to make sure the tests pass without changing logic

Motivation

The current tests don't work. At first we are greeted with this error, then many more follow

Changes

Core Configuration

• TypeScript: Updated tsconfig.json to esnext with resolveJsonModule: true to support modern ESM syntax and direct IDL imports.

• Imports: Switched to default imports for @coral-xyz/anchor to fix BN constructor errors in ESM.

• Bankrun Compatibility:

  • Replaced unsupported connection.getTokenAccountBalance with getAccount from @solana/spl-token.
  • Removed redundant confirmTransaction calls as Bankrun processes transactions instantly.

• Mocha Integration:

  • Refactored tests/bankrun.test.ts to use synchronous describe blocks and Mocha hooks instead of node:test.
  • Fixed incorrect type casting for the Anchor Program instance.

Verification Results

• anchor test passes with all 4 tests successful.

Note: I tried to deduce the the missing Prettier config to minimize diff noise (trailing comma, single Quote) but the test files don't use one convention

---

AI usage

I used some AI assistance, but reviewed the changes carefully to make sure everything is relevant and minimize noise