feat: integrate affected testing into npm scripts

- Add test:affected script for running affected tests
- Update test-pre-commit to use affected test runner with --staged flag
- Speeds up precommit hooks by only running relevant tests

Author: jdalton

package.json

@@ -78,13 +78,14 @@
     "bs": "pnpm run build:dist:src; pnpm exec socket --",
     "s": "pnpm exec socket --",
     "test": "run-s check test:*",
+    "test:affected": "node scripts/test-affected.mjs",
     "test:unit": "dotenvx -q run -f .env.test -- pnpm vitest run --config .config/vitest.config.mts",
     "test:unit:update": "dotenvx -q run -f .env.test -- pnpm vitest run --config .config/vitest.config.mts --update",
     "test:unit:coverage": "dotenvx -q run -f .env.test -- pnpm vitest run --config .config/vitest.config.mts --coverage",
     "test:validate": "node scripts/validate-tests.mjs",
     "test:wrapper": "node scripts/test-wrapper.mjs",
     "test-ci": "run-s test:*",
-    "test-pre-commit": "pnpm test",
+    "test-pre-commit": "dotenvx -q run -f .env.precommit -- node scripts/test-affected.mjs --staged",
     "testu": "dotenvx -q run -f .env.test -- run-s pretest:unit; pnpm run test:unit:update --",
     "testuf": "dotenvx -q run -f .env.test -- pnpm run test:unit:update --",
     "update": "run-p --aggregate-output update:*",