🐛 Make integration test summary non-fatal on staging

The summary step reads a filter from .github/scripts, which never
landed on this branch, so every run failed with exit code 2 even when
all tests passed. Add the filter and tolerate both a missing file and
a jq error.

Use `!cancelled()` instead of `always()` on the merge job, so it no
longer runs after cancel-in-progress killed the shards without
uploading their blobs.

Lower the JSON report retention to 7 days, the repository maximum.

Signed-off-by: David Barragán Merino <david.barragan@kaleidos.net>

.github/scripts/playwright-summary.jq

@@ -0,0 +1,41 @@
+def specs: [.. | objects | select(has("tests") and has("file"))];
+def dur: [.tests[].results[]?.duration // 0] | add;
+
+specs as $s
+| ($s | map(select(any(.tests[]; .status == "unexpected")))) as $failed
+| ($s | map(select(any(.tests[]; .status == "flaky"))))      as $flaky
+| ($s | map(select(any(.tests[]; .status == "skipped"))))    as $skipped
+| ($s | length) as $total
+| ($s | map(dur) | add // 0 | . / 1000 | floor) as $cpu
+| (if ($failed | length) > 0 then "❌"
+   elif ($flaky | length) > 0 then "⚠️"
+   else "✅" end) as $icon
+
+| "## \($icon) Integration tests\n\n"
++ "| Total | Passed | Flaky | Failed | Skipped | Test time |\n"
++ "|---|---|---|---|---|---|\n"
++ "| \($total) | \($total - ($failed|length) - ($flaky|length) - ($skipped|length)) "
++ "| \($flaky|length) | \($failed|length) | \($skipped|length) | \($cpu / 60 | floor)m |\n"
+
++ (if ($failed | length) > 0 then
+     "\n### Failed\n\n"
+     + ($failed | map("- `\(.file):\(.line)` — \(.title)") | join("\n")) + "\n"
+   else "" end)
+
++ (if ($flaky | length) > 0 then
+     "\n### Flaky (passed on retry)\n\n"
+     + ($flaky
+        | map({ t: "`\(.file):\(.line)` — \(.title)",
+                r: ([.tests[].results[]? | select(.status == "failed")] | length) })
+        | sort_by(-.r)
+        | map("- \(.t) _(\(.r) \(if .r == 1 then "retry" else "retries" end))_")
+        | join("\n")) + "\n"
+   else "" end)
+
++ (if $total > 0 then
+     "\n<details><summary>Slowest specs</summary>\n\n"
+     + ($s | map({ t: "`\(.file)` — \(.title)", d: (dur / 1000 | floor) })
+          | sort_by(-.d) | .[0:5]
+          | map("- \(.t) — \(.d)s") | join("\n"))
+     + "\n\n</details>\n"
+   else "" end)

.github/workflows/tests-integration.yml

@@ -178,7 +178,7 @@ jobs:
           retention-days: 3
 
   merge-reports:
-    if: ${{ always() && !github.event.pull_request.draft && needs.test-integration.result != 'skipped' }}
+    if: ${{ !cancelled() && !github.event.pull_request.draft && needs.test-integration.result != 'skipped' }}
     name: "Merge Integration Reports"
     runs-on: penpot-extended-runner
     timeout-minutes: 15
@@ -221,16 +221,18 @@ jobs:
 
       - name: Test summary
         if: always()
+        continue-on-error: true
         working-directory: ./frontend
         run: |
           if [ ! -f report.json ]; then
             echo "No report produced (all shards failed early)." >> "$GITHUB_STEP_SUMMARY"
             exit 0
           fi
-          jq -r -f ../.github/scripts/playwright-summary.jq report.json >> "$GITHUB_STEP_SUMMARY"
+          jq -r -f ../.github/scripts/playwright-summary.jq report.json \
+            >> "$GITHUB_STEP_SUMMARY" \
+            || echo "Summary generation failed; see the HTML report artifact." \
+               >> "$GITHUB_STEP_SUMMARY"
 
-      # Kept for 30 days so flakiness rates can be aggregated across runs
-      # without scraping job logs.
       - name: Upload JSON report
         uses: actions/upload-artifact@v7
         if: always()
@@ -239,7 +241,7 @@ jobs:
           path: frontend/report.json
           overwrite: true
           if-no-files-found: ignore
-          retention-days: 30
+          retention-days: 7
 
       - name: Upload HTML report
         uses: actions/upload-artifact@v7