feat(lighthouse): add canonical three-host skill navigation

routing/public-navigation-anchor.json

@@ -1,7 +1,7 @@
 {
   "schema": "guanghu.public-navigation-anchor/v1",
   "anchor_id": "GLW-PUBLIC-NAV-ANCHOR-001",
-  "version": "2026-08-07.1",
+  "version": "2026-08-07.2",
   "state": "CURRENT_CANONICAL",
   "repository_id": "REPO-012",
   "branch": "main",
@@ -39,10 +39,20 @@
       "id": "AI-MACHINE-NAV-001",
       "version": "2026-08-05.1"
     },
+    "lighthouse_paths": {
+      "path": "routing/lighthouse-path-registry.json",
+      "id": "GLW-LIGHTHOUSE-PATH-REGISTRY-001",
+      "version": "2026-08-07.1"
+    },
+    "host_skills": {
+      "path": "routing/host-skill-navigation-map.json",
+      "id": "GLW-HOST-SKILL-NAV-001",
+      "version": "2026-08-07.1"
+    },
     "persona_skills": {
       "path": "skills/codex/guanghu-persona-skill-guard/references/persona-skill-registry.json",
       "id": "GLS-0238",
-      "version": "2026.08.07.2"
+      "version": "2026.08.07.6"
     }
   },
   "update_contract": {