ci(validation): add regex pattern validation

.github/workflows/regex.yml

@@ -0,0 +1,55 @@
+name: Validate Regex Patterns
+
+on:
+  push:
+    paths:
+      - 'regex_patterns/**/*.yml'
+      - 'regex_patterns/**/*.yaml'
+      - '.github/workflows/regex.yml'
+      - 'scripts/validatePattern.ps1'
+  pull_request:
+    paths:
+      - 'regex_patterns/**/*.yml'
+      - 'regex_patterns/**/*.yaml'
+      - '.github/workflows/regex.yml'
+      - 'scripts/validatePattern.ps1'
+  workflow_dispatch:
+
+jobs:
+  discover-patterns:
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
+    steps:
+      - uses: actions/checkout@v4
+      
+      - id: set-matrix
+        run: |
+          patterns=$(find regex_patterns -name "*.yml" -o -name "*.yaml" | jq -R -s -c 'split("\n")[:-1] | map({file: ., name: (. | split("/")[-1] | split(".")[0])})')
+          echo "matrix=$patterns" >> $GITHUB_OUTPUT
+          echo "Found patterns: $patterns"
+
+  validate-pattern:
+    needs: discover-patterns
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        pattern: ${{ fromJson(needs.discover-patterns.outputs.matrix) }}
+    name: Validate ${{ matrix.pattern.name }}
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Setup PowerShell
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y powershell
+      
+      - name: Validate Pattern
+        run: |
+          pwsh scripts/validatePattern.ps1 -YamlFilePath "${{ matrix.pattern.file }}"
+      
+      - name: Run Unit Tests
+        run: |
+          echo "TODO: Implement unit tests for ${{ matrix.pattern.file }}"
+          # TODO: Add test runner command here