ci: add Mock Tests job to satisfy required status check (#1904)

* ci: add Mock Tests job to satisfy required status check

Split the unit-tests job into mock-tests (runs bun test) and unit-tests
(verifies cloud bundles build). The repo ruleset requires "Mock Tests",
"Unit Tests", and "Biome Lint" checks — the missing "Mock Tests" job was
blocking all PR merges.

Fixes #1901

Agent: issue-fixer
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

* style: fix pre-existing Biome format issues in 9 files

Auto-applied Biome formatter to src/ to resolve failing "Biome Lint"
required status check. No logic changes — formatting only.

Agent: issue-fixer
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

---------

Co-authored-by: B <6723574+louisgv@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

.github/workflows/test.yml

@@ -9,6 +9,23 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  mock-tests:
+    name: Mock Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Run mock tests
+        run: bun test
+
   unit-tests:
     name: Unit Tests
     runs-on: ubuntu-latest
@@ -23,9 +40,6 @@ jobs:
       - name: Install dependencies
         run: bun install
 
-      - name: Run bun tests
-        run: bun test
-
       - name: Verify cloud bundles build
         run: bun run packages/cli/build-clouds.ts