ci: split test CI workflow into separate workflows for lint, typecheck, unit test, build (#77)

* Initial plan for issue

* Split test workflow into separate lint, typecheck, unit-test, and build workflows

Co-authored-by: serhalp <[email protected]>

* Add explicit permissions to all workflow files to resolve CodeQL warning

Co-authored-by: serhalp <[email protected]>

* fix: update workflow triggers to run on push to main and all PRs

Co-authored-by: serhalp <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: serhalp <[email protected]>
Co-authored-by: Philippe Serhal <[email protected]>

Author: Copilot

.github/workflows/test.yml renamed to .github/workflows/build.yml

@@ -1,9 +1,15 @@
-name: All Tests
+name: Build
 
-on: [push, pull_request]
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
 
 jobs:
-  test:
+  build:
     runs-on: ubuntu-latest
 
     steps:
@@ -16,7 +22,4 @@ jobs:
         run: corepack enable
       - run: pnpm install
 
-      - run: pnpm run lint
-      - run: pnpm run typecheck
-      - run: pnpm run test:unit
-      - run: pnpm run build
+      - run: pnpm run build

.github/workflows/lint.yml

@@ -0,0 +1,25 @@
+name: Lint
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22.x
+      - name: Set up PNPM
+        run: corepack enable
+      - run: pnpm install
+
+      - run: pnpm run lint

.github/workflows/typecheck.yml

@@ -0,0 +1,25 @@
+name: Type Check
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  typecheck:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22.x
+      - name: Set up PNPM
+        run: corepack enable
+      - run: pnpm install
+
+      - run: pnpm run typecheck

.github/workflows/unit-test.yml

@@ -0,0 +1,25 @@
+name: Unit Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  unit-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22.x
+      - name: Set up PNPM
+        run: corepack enable
+      - run: pnpm install
+
+      - run: pnpm run test:unit