fix: check statusCheckRollup.state for pending CI

When CI is still starting up (e.g., workflow jobs queued but not yet
created), the rollup state is PENDING but no individual check nodes
with PENDING status exist yet. The script was falling through to
CI_FAIL because $any_running evaluated false.

Capture the rollup-level .state field and incorporate it into the
$any_running calculation so PENDING/EXPECTED rollup states correctly
show as 🟡 (running) instead of 🔴 (failed).

Co-Authored-By: Claude Code (/Users/nathan.heaps/src/stainless-api/stainless) <noreply@anthropic.com>

Author: nsheaps

bin/gs-stack-status

@@ -402,6 +402,10 @@ if [[ -n "$repo_owner" && ${#pr_number_to_branch[@]} -gt 0 ]]; then
       (.commits.nodes[0].commit.statusCheckRollup // null) |
       if . == null then "NO_CI"
       else
+        # Capture rollup-level state for cases where checks haven't been
+        # created yet (e.g., queued workflow jobs). The rollup knows CI is
+        # pending even when no individual PENDING check nodes exist.
+        (.state // "UNKNOWN") as $rollup_state |
         (.contexts.nodes // []) as $nodes |
         ($nodes | map(select(. != null))) as $all_valid |
         # Deduplicate: GitHub returns stale check runs from older workflow
@@ -448,7 +452,7 @@ if [[ -n "$repo_owner" && ${#pr_number_to_branch[@]} -gt 0 ]]; then
             .cState != null and (.cState | IN("FAILURE", "ERROR"))
           )) | length) as $sc_failed |
 
-          (($cr_running + $sc_running) > 0) as $any_running |
+          (($cr_running + $sc_running) > 0 or ($rollup_state | IN("PENDING", "EXPECTED"))) as $any_running |
           (($cr_failed + $sc_failed) > 0) as $any_failed |
 
           if $any_running and $any_failed then