Address review feedback on port test and health check

- Port assertion: accept any port in auto-increment range, not just +1
- Summary label: fix misleading per-section counter display
- Health check: add -f back now that HEAD / returns 200

Author: lukekim

.github/actions/setup/action.yml

@@ -160,7 +160,7 @@ runs:
             exit 1
           fi
           ENDPOINT=$(grep 'listening on' "$SPICEIO_LOG" 2>/dev/null | grep -o 'http://[^ ]*' | tail -1 || true)
-          if [[ -n "$ENDPOINT" ]] && curl -s -o /dev/null "$ENDPOINT/" 2>/dev/null; then
+          if [[ -n "$ENDPOINT" ]] && curl -fsS -o /dev/null "$ENDPOINT/" 2>/dev/null; then
             echo "spiceio ready at $ENDPOINT (PID $PID)"
             echo "endpoint=$ENDPOINT" >> "$GITHUB_OUTPUT"
             exit 0

scripts/test-sccache.sh

@@ -289,7 +289,13 @@ if [[ -n "$ENDPOINT2" ]]; then
 
     PORT1="${BIND##*:}"
     PORT2="${ENDPOINT2##*:}"
-    assert_eq "port auto-incremented" "$((PORT1 + 1))" "$PORT2"
+    if [[ "$PORT2" =~ ^[0-9]+$ ]] && (( PORT2 > PORT1 && PORT2 <= PORT1 + 100 )); then
+        echo "  PASS: port auto-incremented ($PORT1 -> $PORT2)"
+        PASS=$((PASS + 1))
+    else
+        echo "  FAIL: port should differ from $PORT1 and be within auto-increment range (got $PORT2)"
+        FAIL=$((FAIL + 1))
+    fi
 
     # Both instances should serve requests
     assert_ok "first instance health check" curl -sf -o /dev/null "${ENDPOINT}/"
@@ -317,7 +323,8 @@ rm -f "$SPICEIO_LOG2"
 
 echo ""
 echo "======================================="
-echo "[test] port auto-increment: $PASS passed, $FAIL failed"
+echo "[test] port auto-increment complete"
+echo "[test] cumulative assertions: $PASS passed, $FAIL failed"
 echo "======================================="
 
 if [[ "$FAIL" -gt 0 ]]; then