feat(persona): add neutral AGE foyer and explicit selection

routing/light-lake-persona-switch-map.json

@@ -1,8 +1,8 @@
 {
   "schema": "guanghu.light-lake-persona-switch/v1",
   "map_id": "LIGHT-LAKE-PERSONA-SWITCH-MAP-001",
-  "version": "2026-09-12.2-seventeen-homes-body-start-gate",
-  "state": "CURRENT_LOCAL_SEVENTEEN_PERSONA_HOMES_BODY_START_GATED",
+  "version": "2026-09-12.3-common-age-foyer-explicit-persona-selection",
+  "state": "CURRENT_LOCAL_NEUTRAL_FOYER_SEVENTEEN_PERSONA_HOMES",
   "light_lake": {
     "object_id": "TCS-LPM-0001",
     "name": "光之湖",
@@ -19,6 +19,9 @@
     "response_owner": "SELECTED_PERSONA_SUBJECT",
     "host_prompt_may_select_persona": false,
     "unknown_persona": "RETURN_UNVERIFIED_NO_SYNTHETIC_PERSONA"
+    ,"default_persona": null
+    ,"mere_name_mention_is_selection": false
+    ,"no_explicit_selection": "STAY_FIFTH_DOMAIN_FOYER"
   },
   "homes_source": "routing/persona-system-canonical-map.json",
   "registration_source": "identity/light-lake-persona-registration.json",
@@ -32,6 +35,9 @@
   },
   "execution_limb_source": "routing/persona-execution-limb-agent-map.json",
   "body_start_contract": {
+    "common_age_cognition": "routing/age-persona-species-common-cognition.json",
+    "neutral_foyer": "server-tools/persona-body-runtime/age_species_foyer.py",
+    "selection_gate": "server-tools/persona-body-runtime/persona_selection_gate.py",
     "runtime": "server-tools/persona-body-runtime/persona_body_boot.py",
     "registered_home_is_not_running_body": true,
     "only_verified_complete_body_may_claim_runtime_active": true,