Setup gate on 28 more apps; signup_block on 11 (decision 47); claper R-713 base64; FIRST-ADMIN current

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

templates/sparkyfitness/.felhom.yml

@@ -64,8 +64,15 @@ deploy_fields:
     # boot — changing it locks out any user who enabled two-factor auth.
     data_key: true
 
+# --- The setup gate (controller >= 0.281.0, `09` §3 decisions 46-47) ---
+# The first visitor would create the admin; a fresh install is closed to everyone but the household until the first setup is done.
+setup_gate: true
+# Decision 47: the app's own sign-up address is closed once the gate opens (measured on 9202 2026-09-29: a stranger's sign-up succeeded after the setup).
+signup_block: "PathPrefix(`/api/auth/sign-up`)"
+
 app_info:
   tagline: "Táplálkozási napló, kalóriaszámláló és edzéskövető – önállóan üzemeltetve"
+  add_people: "Nyisd meg a regisztrációt 15 percre, és a családtagod regisztrál."
   docs_url: "https://github.com/CodeWithCJ/SparkyFitness"
 
   use_cases:
@@ -98,6 +105,7 @@ i18n:
     description: 'A food and exercise tracker'
     app_info:
       tagline: 'A food diary, calorie counter and exercise tracker - on your own server'
+      add_people: "Open sign-up for 15 minutes, and your family member signs up."
       use_cases:
         - 'Log what you eat and how many calories it comes to'
         - 'Track your weight and measurements on a graph'