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/vikunja/.felhom.yml

@@ -41,9 +41,16 @@ deploy_fields:
     generate: "hex:32"
     locked_after_deploy: 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/v1/register`)"
+
 # --- App info (info page content) ---
 app_info:
   tagline: "Feladatkezelő - listák, Kanban táblák és Gantt diagramok"
+  add_people: "Nyisd meg a regisztrációt 15 percre, és a családtagod regisztrál; utána megoszthatod vele a projektjeidet."
   docs_url: "https://vikunja.io/docs/"
 
   use_cases:
@@ -78,6 +85,7 @@ i18n:
     description: 'Task lists and boards (a Todoist/Trello alternative)'
     app_info:
       tagline: 'Task management - lists, Kanban boards and Gantt charts'
+      add_people: "Open sign-up for 15 minutes, and your family member signs up; then share your projects with them."
       use_cases:
         - 'Keep your task lists and to-dos'
         - 'A Kanban board view (Trello-like)'