fix(ci): skip E2E when NuGet sagefs lacks --supervised flag

- Smoke test checks for --supervised support before attempting daemon start
- Gracefully skips E2E suite when flag is missing (NuGet vs dev build)
- Emits GitHub Actions warning annotation when skipping
- E2E will run once SageFs publishes supervised mode to NuGet

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: WillEhrendreich

.github/workflows/test.yml

@@ -74,8 +74,17 @@ jobs:
           done
 
       - name: Smoke test SageFs daemon
+        id: smoke
         run: |
           export PATH="$HOME/.dotnet/tools:$PATH"
+          # Check if sagefs supports --supervised (required for E2E)
+          if sagefs --help 2>&1 | grep -q 'supervised'; then
+            echo "sagefs supports --supervised"
+          else
+            echo "::warning::sagefs NuGet version does not support --supervised/--port flags (needed for E2E)"
+            echo "skip_e2e=true" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
           sagefs --supervised --proj samples/Minimal/Minimal.fsproj --port 47700 > /tmp/sagefs-smoke.log 2>&1 &
           SAGEFS_PID=$!
           echo "SageFs PID: $SAGEFS_PID"
@@ -93,6 +102,7 @@ jobs:
           exit 1
 
       - name: Run E2E suites
+        if: steps.smoke.outputs.skip_e2e != 'true'
         env:
           PATH: /home/runner/.dotnet/tools:/opt/nvim-linux-x86_64/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
         run: |