docs/test(P19IM1-5,P19IM1-6): 收口IM协同文档矩阵与回归

scripts/validate-feature-matrix.py

@@ -38,6 +38,7 @@ CSV_FACT_SOURCES = [
     ROOT / "issues" / "2026-03-07_22-02-09-p18a-l5-asset-registry-core.csv",
     ROOT / "issues" / "2026-03-07_22-34-03-p18b-l5-asset-movements-inventory.csv",
     ROOT / "issues" / "2026-03-07_23-22-00-p19-l4-integration-readiness.csv",
+    ROOT / "issues" / "2026-03-08_12-18-10-p19-im-1-l5-collaboration-adapter.csv",
 ]
 
 ID_PATTERN = re.compile(r"^[A-Z][0-9][0-9A-Za-z-]*$")