add github workflows for linting and type checking

.github/workflows/lint.yml

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+name: Lint
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Use Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '18'
+        cache: 'npm'
+
+    - name: Install Dependencies
+      run: npm ci
+
+    - name: Run ESLint
+      run: npm run lint

.github/workflows/security.yml

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+name: Security Scan
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+  schedule:
+    - cron: '0 0 * * 0'  # Run weekly on Sunday at midnight
+
+jobs:
+  security_scan:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Use Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '18'
+        cache: 'npm'
+
+    - name: Install Dependencies
+      run: npm ci
+
+    - name: Run Security Audit
+      run: npm audit --audit-level=high
+
+    - name: Scan for Secrets
+      uses: trufflesecurity/trufflehog@v3
+      with:
+        path: ./
+        baseRef: ${{ github.event.pull_request.base.ref || github.ref }}
+        headRef: ${{ github.event.pull_request.head.ref || github.sha }}

.github/workflows/typecheck.yml

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+name: Type Check
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+
+jobs:
+  typecheck:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Use Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '18'
+        cache: 'npm'
+
+    - name: Install Dependencies
+      run: npm ci
+
+    - name: Run TypeScript Type Check
+      run: npm run typecheck