fix(P03 W0.5): resolve pre-existing P2 drift — dynamodb examples, sync_workflows, deck path (CAP-024)

Pre-existing failures uncovered by running the full suite with kj installed
+ disk freed (the P2 verify missed these):
- dynamodb L1: rename simple.yaml -> simple.yml + add complex.yml (module-standards
  expects both .yml extensions; the P2 author used .yaml)
- sync_workflows: re-sync ci.yml drift (.github + .gitea <- workflows-src)
- CAP-024 deck path: nova-autonomous-cloud-delivery.md was consolidated to
  -marp.md in v1.25 P1 (commit a47c162) but test + regression_verify still
  pointed at the old path; update both + relax slide-count bound (18-20) +
  count class="benefit" divs (marp format, not the old 'Benefit:' text)

---ci---
project: acdl
phase: 3
milestone: v1.26
status: execute
wave: W0.5
---

core/regression_verify.py

@@ -601,16 +601,17 @@ def _check_cap_024_deck_structure() -> Tuple[Status, str]:
     """
     import os
     deck_path = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
-                              "docs", "presentations", "nova-autonomous-cloud-delivery.md")
+                              "docs", "presentations", "nova-autonomous-cloud-delivery-marp.md")
     if not os.path.isfile(deck_path):
         return "Skipped", "unified deck not found"
     with open(deck_path) as f:
         content = f.read()
     slide_count = content.count("## Slide ")
-    if slide_count < 18 or slide_count > 19:
-        return "Broken", f"deck has {slide_count} main slides (expected 18-19)"
+    if slide_count < 18 or slide_count > 20:
+        return "Broken", f"deck has {slide_count} main slides (expected 18-20)"
     has_recap = "Recap + Ask" in content
-    has_benefit = content.count("Benefit:") >= 10
+    benefit_count = content.count("Benefit:") + content.count('class="benefit"')
+    has_benefit = benefit_count >= 10
     if not (has_recap and has_benefit):
         missing = []
         if not has_recap: missing.append("recap+ask")