feat(basics): migrate 5 pilot programs from ts-mocha to tsx + node:test runner

[NikkiAung]

Summary

All basics/ native/pinocchio/asm test files already import describe/test from node:test, yet they're launched through ts-mocha which contributes nothing — node:test self-registers and auto-runs at process exit. This PR removes the dead mocha launcher and standardises the 5 pilot programs on:

• Runner: tsx --test <file> (matches pattern already in use at games/world-cup/pinocchio)
• Assertions: node:assert (drop chai)
• Types: @types/node only (drop @types/mocha, @types/chai)

Pilot programs (5) — chosen to cover all variants

Program	CI workflow	Runtime	Assertion change
basics/hello-solana/native	native	solana-bankrun	chai → node:assert
basics/counter/native	native	solana-bankrun	chai → node:assert
basics/account-data/pinocchio	pinocchio	litesvm	none (bare throw)
basics/checking-accounts/asm	asm	solana-bankrun	none (already node:assert)
basics/create-account/native	native	solana-bankrun	none (no assertions)

Changes per program

• package.json — test script: pnpm ts-mocha -p ... -t 1000000 <file> → tsx --test <file>; drop mocha/ts-mocha/@types/mocha/chai/@types/chai; add tsx ^4.22.0 + @types/node ^22.19.1
• tsconfig.json — types: ["mocha","chai"(,"node")] → ["node"]
• hello-solana/native + counter/native test files — import { assert } from "chai" → import assert from "node:assert" (identical truthy semantics; no call-site edits)
• pnpm-lock.yaml — regenerated per package (mocha/chai tree removed, tsx added)

No CI workflow changes needed — tests are invoked via the pnpm test script that build-and-test already chains into.

Test plan

• CI solana-native.yml passes for hello-solana/native, counter/native, create-account/native
• CI solana-pinocchio.yml passes for account-data/pinocchio
• CI solana-asm.yml passes for checking-accounts/asm
• Grep: no residual ts-mocha, "mocha", or from "chai" in the 5 programs
• Follow-up PR to migrate remaining ~29 basics programs once this pilot is green

[greptile-apps]

Greptile Summary

This PR migrates five pilot programs from ts-mocha to the Node test runner. The main changes are:

• Runs TypeScript tests with tsx --test.
• Replaces Chai assertions with node:assert where needed.
• Removes Mocha and Chai dependencies and types.
• Regenerates each pilot program's pnpm lockfile.

Confidence Score: 5/5

This looks safe to merge.

• The regenerated lockfiles match the five changed manifests.
• The CI pnpm version supports the committed lockfile format.
• No blocking issues remain in the updated code.

Important Files Changed

Filename	Overview
basics/account-data/pinocchio/package.json	Moves the test script and dependencies from ts-mocha to tsx and Node types.
basics/checking-accounts/asm/package.json	Moves the ASM test script and dependencies to tsx and the Node test runner.
basics/counter/native/package.json	Moves the counter test script and dependencies to tsx and Node types.
basics/create-account/native/package.json	Moves the native test script and dependencies to tsx and the Node test runner.
basics/hello-solana/native/package.json	Moves the test script and dependencies from ts-mocha to tsx and Node types.
basics/counter/native/tests/counter.test.ts	Replaces the Chai truthiness assertion import with node:assert.
basics/hello-solana/native/tests/index.test.ts	Replaces the Chai truthiness assertion import with node:assert.

_{Reviews (2): Last reviewed commit: "feat(basics): migrate 5 programs from ts..." | Re-trigger Greptile}

[dev-jodee]

the regenerated lockfiles dropped the libc fields on the litesvm Linux packages (they're present on main). Not breaking CI since the runners are glibc, but it can pull the wrong binary on musl/Alpine. Looks like it was regenerated with a pnpm other than the pinned 10.33.0. Can you redo them with:

corepack use pnpm@10.33.0
pnpm install --lockfile-only

[dev-jodee]

the comment above ^