feat: init presubmit workflow for ai reviews

Author: adhorodyski

.github/workflows/presubmit.yml

@@ -0,0 +1,48 @@
+name: PR Presubmit Reviews
+
+permissions:
+  contents: read
+  pull-requests: write
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+  pull_request_review_comment:
+    types: [created]
+
+jobs:
+  review:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Check required secrets
+        run: |
+          if [ -z "${{ secrets.LLM_API_KEY }}" ]; then
+            echo "Error: LLM_API_KEY secret is not configured"
+            exit 1
+          fi
+
+      - name: Read RULES.md
+        id: read-rules
+        run: |
+          RULES_CONTENT=$(cat contributingGuides/review/RULES.md)
+          echo "content<<EOF" >> $GITHUB_OUTPUT
+          echo "$RULES_CONTENT" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
+
+      - name: Print RULES.md
+        run: |
+          echo "📋 RULES.md"
+          echo "======================================"
+          echo "${{ steps.read-rules.outputs.content }}"
+          echo "======================================"
+
+      - uses: aldo-expensify/ai-reviewer-hackaton@c91b349b41efdf1eeaa290716628d76068148f0b
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          LLM_API_KEY: ${{ secrets.LLM_API_KEY }}
+          LLM_MODEL: "claude-3-7-sonnet-20250219"
+        with:
+          style_guide_rules: ${{ steps.read-rules.outputs.content }}