Add parallel test execution workflow and update .gitignore for test plans

.github/workflows/bun-test.yml

@@ -8,6 +8,10 @@ jobs:
   test:
     runs-on: ubuntu-latest
     timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        node: [1, 2, 3, 4, 5]
 
     steps:
       - name: Checkout code
@@ -21,14 +25,28 @@ jobs:
       - name: Install dependencies
         run: bun install
 
-      - name: Run tests
-        run: bun test --timeout 300000
+      - name: Install bun-test-plan
+        run: npm install -g @tscircuit/bun-test-plan
+
+      - name: Generate test plans
+        run: bun-test-plan
+
+      - name: Run tests for node ${{ matrix.node }}
+        run: |
+          if [ "${{ matrix.node }}" = "1" ]; then
+            # Node 1: Run only the long-running test
+            bun test tests/bugs/bugreport23.test.ts --timeout 300000
+          else
+            # Other nodes: Run from generated test plan
+            mapfile -t test_files < .bun-test-plan/testplans/testplan${{ matrix.node }}.txt
+            bun test "${test_files[@]}" --timeout 300000
+          fi
 
       - name: Upload diff PNG and SVG snapshot artifacts
         if: failure()
         uses: actions/upload-artifact@v4
         with:
-          name: diff-png-and-snap-svg-artifacts
+          name: diff-png-and-snap-svg-artifacts-node${{ matrix.node }}
           path: |
             **/*.diff.png
             **/*.snap.svg

.gitignore

@@ -184,3 +184,6 @@ cosmos-export
 .yalc
 yalc.lock
 **/.claude/settings.local.json
+
+# Generated test plans
+.bun-test-plan/

bun-test-plan.json

@@ -0,0 +1,4 @@
+{
+  "nodeCount": 5,
+  "globPatterns": ["tests/bugs/bugreport23.test.ts", "tests/**/*.test.{ts,tsx}"]
+}