refactor: migrate test runner from bun:test to vitest

Author: BYK

.github/workflows/ci.yml

@@ -26,6 +26,10 @@ env:
   # binary is only smoke-tested (--help) and never shipped, so any non-empty
   # value works; tests tolerate the dummy via test/preload.ts.
   SENTRY_CLIENT_ID: ${{ vars.SENTRY_CLIENT_ID || 'ci-fork-pr-dummy' }}
+  # Disable io_uring in libuv — GitHub Actions runners may use kernels that
+  # don't fully support it, causing SIGABRT in Node.js processes.
+  # See: https://github.com/actions/runner-images/issues/13602
+  UV_USE_IO_URING: "0"
 
 jobs:
   changes:
@@ -211,6 +215,9 @@ jobs:
         with:
           bun-version: "1.3.13"
       - uses: pnpm/action-setup@v4
+      - uses: actions/setup-node@v6
+        with:
+          node-version: "24"
       - uses: actions/cache@v5
         id: cache
         with:
@@ -636,7 +643,7 @@ jobs:
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v6
         with:
-          node-version: "22"
+          node-version: "24"
       - uses: actions/cache@v5
         id: cache
         with:
@@ -676,9 +683,6 @@ jobs:
         with:
           bun-version: "1.3.13"
       - uses: pnpm/action-setup@v4
-      - uses: actions/setup-node@v6
-        with:
-          node-version: ${{ matrix.node }}
       - uses: actions/cache@v5
         id: cache
         with:

.lore.md

@@ -26,6 +26,7 @@
     "@types/qrcode-terminal": "^0.12.2",
     "@types/react": "^19.2.14",
     "@types/semver": "^7.7.1",
+    "@vitest/coverage-v8": "^4.1.7",
     "binpunch": "^1.0.0",
     "chalk": "^5.6.2",
     "cli-highlight": "^2.1.11",
@@ -51,6 +52,7 @@
     "typescript": "^5",
     "ultracite": "6.3.10",
     "uuidv7": "^1.1.0",
+    "vitest": "^4.1.7",
     "wrap-ansi": "^10.0.0",
     "zod": "^3.24.0"
   },
@@ -96,10 +98,10 @@
     "lint": "biome check --no-errors-on-unmatched --max-diagnostics=none ./",
     "lint:fix": "biome check --write --no-errors-on-unmatched --max-diagnostics=none ./",
     "test": "bun run test:unit",
-    "test:unit": "bun run generate:docs && bun run generate:sdk && bun test --timeout 15000 --isolate --parallel test/lib test/commands test/types --coverage --coverage-reporter=lcov",
-    "test:changed": "bun run generate:docs && bun run generate:sdk && bun test --timeout 15000 --isolate --changed",
-    "test:e2e": "bun run generate:docs && bun run generate:sdk && bun test --timeout 15000 test/e2e",
-    "test:init-eval": "bun test test/init-eval --timeout 600000 --concurrency 6",
+    "test:unit": "bun run generate:docs && bun run generate:sdk && vitest run test/lib test/commands test/types --coverage",
+    "test:changed": "bun run generate:docs && bun run generate:sdk && vitest run --changed",
+    "test:e2e": "bun run generate:docs && bun run generate:sdk && vitest run test/e2e",
+    "test:init-eval": "vitest run test/init-eval --testTimeout 600000",
     "generate:parser": "bun run script/generate-parser.ts",
     "generate:sdk": "bun run script/generate-sdk.ts",
     "generate:skill": "bun run script/generate-skill.ts",