feat(basics): migrate remaining 29 programs from ts-mocha to tsx + node:test runner

[NikkiAung]

Summary

Follow-up to #636 (pilot). Applies the same ts-mocha → tsx --test migration to all remaining non-anchor native/pinocchio/asm programs in basics/ (29 programs, 94 files).

Anchor programs excluded — anchor test --validator legacy invokes mocha internally and bypasses package.json scripts entirely; migrating them requires changes to the Anchor CLI itself.

Changes per program (×29)

• package.json — test script: pnpm ts-mocha … <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: drop "mocha" and "chai", ensure "node" is present
• pnpm-lock.yaml — regenerated per package (mocha/chai tree removed, tsx added)

6 test files with structural edits

File	What changed
cross-program-invocation/native	Add node:test imports (before, describe, test); rename it() → test()
cross-program-invocation/pinocchio	Same; also swap import { assert } from "chai" → import assert from "node:assert"
hello-solana/asm	Add node:test imports (before, describe, test); rename it() → test(); chai → node:assert
hello-solana/pinocchio	Same as hello-solana/asm
favorites/native	import { describe, test } from "mocha" → node:test; add beforeEach; chai → node:assert; expect().to.equal → assert.strictEqual, expect().to.deep.equal → assert.deepStrictEqual
favorites/pinocchio	import { describe } from "mocha" → node:test (stub file)

Note: favorites/native and cross-program-invocation/native remain in .ghaignore — migrations are for correctness/consistency, not yet CI-verified.

Test plan

• CI solana-native.yml passes for all native programs in this PR
• CI solana-pinocchio.yml passes for all pinocchio programs
• CI solana-asm.yml passes for create-account/asm and transfer-sol/asm
• Grep: no residual ts-mocha, from "mocha", or from "chai" in migrated programs

[greptile-apps]

Greptile Summary

This PR moves the remaining non-Anchor basics/ tests to Node’s built-in test runner. The main changes are:

• Replaces ts-mocha scripts with tsx --test across 29 programs.
• Replaces Mocha and Chai imports, hooks, and assertions in the edited tests.
• Removes obsolete dependencies and regenerates package lockfiles.
• Updates TypeScript types and restores ES2020 targets where required.

Confidence Score: 5/5

This looks safe to merge.

• The latest updates restore the TypeScript target required by modern language features.
• Stale Mocha and Chai type references were removed.
• No blocking issue remains in the reviewed changes.

Important Files Changed

Filename	Overview
basics/create-account/asm/tsconfig.json	Restores the ES2020 library and target needed by the test suite's BigInt usage.
basics/favorites/native/tests/test.ts	Moves test hooks and assertions from Mocha and Chai to Node's test APIs.
basics/cross-program-invocation/pinocchio/tests/test.ts	Moves test registration and assertions to node:test and node:assert.

_{Reviews (3): Last reviewed commit: "fix(#637): remove stale mocha/chai types..." | Re-trigger Greptile}

[greptile-apps]

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