feat: Radicale (CalDAV) и Vikunja (задачи) перенесены в каталог проекта

- radicale/: compose, config, .env (данные в radicale/data/ — gitignored)
- vikunja/: compose (postgres + vikunja :3456), .env (gitignored)
- .gitignore: radicale/data/ (пароли/коллекции не в репо)
- Блокер: docker на bigbox не может создавать контейнеры (systemd1 D-Bus timeout) — нужен внешний рестарт

vikunja/docker-compose.yml

@@ -0,0 +1,47 @@
+# Vikunja — трекер задач (WebUI + REST API)
+# Порт: 3456 (локально), наружу — Caddy: tasks.nixg.ru → 10.8.0.2:3456
+# Данные: volumes vikunja-db (postgres) + vikunja-files (загрузки)
+# Секреты: .env (VIKUNJA_DATABASE_PASSWORD, VIKUNJA_SERVICE_JWTSECRET)
+
+services:
+  db:
+    image: postgres:16-alpine
+    container_name: vikunja-db
+    restart: unless-stopped
+    environment:
+      POSTGRES_PASSWORD: ${VIKUNJA_DATABASE_PASSWORD}
+      POSTGRES_DB: vikunja
+      POSTGRES_USER: vikunja
+    volumes:
+      - vikunja-db:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U vikunja -d vikunja"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  vikunja:
+    image: vikunja/vikunja:latest
+    container_name: vikunja
+    restart: unless-stopped
+    depends_on:
+      db:
+        condition: service_healthy
+    environment:
+      VIKUNJA_DATABASE_TYPE: postgres
+      VIKUNJA_DATABASE_HOST: db
+      VIKUNJA_DATABASE_PORT: 5432
+      VIKUNJA_DATABASE_DATABASE: vikunja
+      VIKUNJA_DATABASE_USERNAME: vikunja
+      VIKUNJA_DATABASE_PASSWORD: ${VIKUNJA_DATABASE_PASSWORD}
+      VIKUNJA_SERVICE_JWTSECRET: ${VIKUNJA_SERVICE_JWTSECRET}
+      VIKUNJA_SERVICE_FRONTENDURL: https://tasks.nixg.ru
+      VIKUNJA_SERVICE_PUBLICURL: https://tasks.nixg.ru
+    ports:
+      - "3456:80"
+    volumes:
+      - vikunja-files:/app/files
+
+volumes:
+  vikunja-db:
+  vikunja-files: