fix(ci): separate historical and current reports in flaky monitor

.github/workflows/flaky-monitor.yml

@@ -48,10 +48,6 @@ jobs:
             cd ..
           fi
 
-          # Copy history to processing dir
-          # (Ignore errors if empty)
-          cp flaky-history/*.json all-reports/ 2>/dev/null || true
-
           # Process current run artifacts
           # Rename to avoid collisions and track run ID
           # We expect files like ctrf-tavern-ubuntu-latest.json
@@ -75,8 +71,8 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           report-path: 'all-reports/*.json'
-          upload-artifact: true
-          fetch-previous-results: false # Using orphan branch instead
+          upload-artifact: false
+          fetch-previous-results: true
           pull-request: false
           issue: ${{ steps.pr_info.outputs.pr_number }}
           overwrite-comment: true
@@ -127,3 +123,11 @@ jobs:
 
           # Push to the orphan branch
           git push origin flaky-monitor-results
+
+      - name: 📤 Upload History Artifact
+        if: ${{ github.event.workflow_run.head_branch == 'main' }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: flaky-report
+          path: flaky-history/
+          overwrite: true