feat(ms-ai-architect): add plugin to open marketplace (v1.5.0 baseline)

Initial addition of ms-ai-architect plugin to the open-source marketplace.
Private content excluded: orchestrator/ (Linear tooling), docs/utredning/
(client investigation), generated test reports and PDF export script.
skill-gen tooling moved from orchestrator/ to scripts/skill-gen/.

Security scan: WARNING (risk 20/100) — no secrets, no injection found.
False positive fixed: added gitleaks:allow to Python variable reference
in output-validation-grounding-verification.md line 109.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/llm-security/reports/skill-registry.json

@@ -1,7 +1,7 @@
 {
   "version": "1",
-  "updated": "2026-04-05T13:40:30.791Z",
-  "entry_count": 1,
+  "updated": "2026-04-07T15:16:22.691Z",
+  "entry_count": 2,
   "entries": {
     "e4e9fe45a840febc9e95a70cc4fe64e143f65856be5546177f48c08715c2e466": {
       "name": "klinkis",
@@ -40,6 +40,27 @@
       ],
       "tags": [],
       "source_type": "scanned"
+    },
+    "92466323e1bfe1d8de1468f0cabdac2950e3d6dabefd276d814e33ab73483c37": {
+      "name": "ms-ai-architect",
+      "source": "/Users/ktg/.claude/plugins/marketplaces/ktg-plugin-marketplace/plugins/ms-ai-architect",
+      "fingerprint": "92466323e1bfe1d8de1468f0cabdac2950e3d6dabefd276d814e33ab73483c37",
+      "first_seen": "2026-04-07T15:16:22.690Z",
+      "last_scanned": "2026-04-07T15:16:22.691Z",
+      "scan_count": 1,
+      "verdict": "WARNING",
+      "risk_score": 20,
+      "counts": {
+        "critical": 0,
+        "high": 2,
+        "medium": 1,
+        "low": 1,
+        "info": 1
+      },
+      "files_scanned": 390,
+      "files_in_fingerprint": 469,
+      "tags": [],
+      "source_type": "scanned"
     }
   }
 }