Add CI and fix ESLint errors

.github/workflows/build-on-commit.yml

@@ -0,0 +1,52 @@
+name: Build on Commit
+
+on:
+  push:
+    branches: [master, main]
+
+jobs:
+  build-on-commit:
+    name: Build Latest
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Cache frontend dependencies
+        uses: actions/cache@v3
+        with:
+          path: frontend/node_modules
+          key: node-frontend-${{ hashFiles('frontend/package-lock.json') }}
+          restore-keys: |
+            node-frontend-
+
+      - name: Cache backend dependencies
+        uses: actions/cache@v3
+        with:
+          path: backend/node_modules
+          key: node-backend-${{ hashFiles('backend/package-lock.json') }}
+          restore-keys: |
+            node-backend-
+
+      - name: Build frontend
+        working-directory: frontend
+        run: |
+          npm ci
+          npm run build
+
+      - name: Setup and verify backend
+        working-directory: backend
+        run: |
+          npm ci
+          node -c index.js
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: catatime-build-${{ github.sha }}
+          path: frontend/out
+          retention-days: 7

.github/workflows/ci.yml

@@ -0,0 +1,91 @@
+name: CI
+
+on:
+  push:
+    branches: [master, main, develop]
+  pull_request:
+    branches: [master, main, develop]
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install frontend dependencies
+        working-directory: frontend
+        run: npm ci
+
+      - name: Cache frontend dependencies
+        uses: actions/cache@v3
+        with:
+          path: frontend/
+          key: \
+            \
+            node-frontend-${{ hashFiles('frontend/package-lock.json') }}
+          restore-keys: |
+            node-frontend-
+
+      - name: Lint frontend
+        working-directory: frontend
+        run: npm run lint
+
+      - name: Check backend syntax
+        working-directory: backend
+        run: |
+          npm ci
+          node -c index.js
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    needs: lint
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install frontend dependencies
+        working-directory: frontend
+        run: npm ci
+
+      - name: Cache frontend dependencies
+        uses: actions/cache@v3
+        with:
+          path: frontend/
+          key: \
+            \
+            node-frontend-${{ hashFiles('frontend/package-lock.json') }}
+          restore-keys: |
+            node-frontend-
+
+      - name: Build frontend
+        working-directory: frontend
+        run: npm run build
+
+      - name: Install backend dependencies
+        working-directory: backend
+        run: npm ci
+
+      - name: Cache backend dependencies
+        uses: actions/cache@v3
+        with:
+          path: backend/node_modules
+          key: \
+            \
+            node-backend-${{ hashFiles('backend/package-lock.json') }}
+          restore-keys: |
+            node-backend-
+
+      - name: Verify backend
+        working-directory: backend
+        run: node -c index.js

.github/workflows/release.yml

@@ -0,0 +1,74 @@
+name: Build Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build-release:
+    name: Build ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-latest
+            build-command: npm run build:linux
+            artifact-path: frontend/out/artifacts
+          - os: macos-latest
+            build-command: npm run build:mac
+            artifact-path: frontend/out/artifacts
+          - os: windows-latest
+            build-command: npm run build:win
+            artifact-path: frontend/out/artifacts
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install frontend dependencies
+        working-directory: frontend
+        run: npm ci
+
+      - name: Cache frontend dependencies
+        uses: actions/cache@v3
+        with:
+          path: frontend/node_modules
+          key: node-frontend-${{ hashFiles('frontend/package-lock.json') }}
+          restore-keys: |
+            node-frontend-
+
+      - name: Build ${{ matrix.os }}
+        working-directory: frontend
+        run: ${{ matrix.build-command }}
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: catatime-${{ matrix.os }}-${{ github.ref_name }}
+          path: ${{ matrix.artifact-path }}
+          if-no-files-found: ignore
+
+  create-release:
+    name: Create Release
+    runs-on: ubuntu-latest
+    needs: build-release
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: release-artifacts
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v1
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          files: release-artifacts/**/*
+          draft: false
+          prerelease: ${{ contains(github.ref, 'alpha') || contains(github.ref, 'beta') }}