v0.11.0 — Phase C: Storage Init Wizard, Data Migration & Startup Fix

- Startup ping: fire heartbeat + health + hub report immediately on boot
  (5s delay after scheduler start, instead of waiting 5-15 min for first tick)

- Storage init wizard: new internal/storage/ package with disk scanning
  (lsblk -J), format+mount pipeline (sfdisk → mkfs.ext4 → blkid → fstab →
  mount → chown), safety guards (system disk detection, confirmation "FORMÁZÁS"),
  progress channel, auto-register in settings.json

- Data migration: MigrateAppData() with rsync --info=progress2 progress parsing,
  stop/rsync/update-config/start flow, rollback on failure, old data preserved

- New pages: /settings/storage/init (wizard), /stacks/{name}/migrate (migration)
- New API routes: /api/storage/{scan,init,init/status,migrate,migrate/status}
- Deploy page: storage info section for deployed apps (path, size, free, migrate link)
- Settings page: "Mozgatás" button per app in storage path details
- Container: privileged: true, /dev:/dev, /etc/fstab:/host-fstab, /run/udev:/run/udev:ro
- Dockerfile: add util-linux, e2fsprogs, rsync, parted for disk ops

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

controller/docker-compose.yml

@@ -8,11 +8,12 @@ services:
     image: gitea.dooplex.hu/admin/felhom-controller:latest
     container_name: felhom-controller
     restart: unless-stopped
+    privileged: true                    # Required for disk operations (mkfs, mount, sfdisk)
     ports:
       - "8080:8080"
     volumes:
       # Docker socket — required for compose operations + DB dumps (docker exec)
-      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - /var/run/docker.sock:/var/run/docker.sock
       # Controller config
       - /opt/docker/felhom-controller/controller.yaml:/opt/docker/felhom-controller/controller.yaml:ro
       # Controller persistent data (sessions, restic cache, restic password)
@@ -29,6 +30,12 @@ services:
       - /etc/os-release:/host/etc/os-release:ro
       # Host hostname — for monitoring page (os.Hostname() returns container ID)
       - /etc/hostname:/host/etc/hostname:ro
+      # Block devices — required for storage init (lsblk, mkfs, sfdisk)
+      - /dev:/dev
+      # Host fstab — UUID-based mount persistence (mounted as /host-fstab inside container)
+      - /etc/fstab:/host-fstab
+      # udev metadata — for blkid/lsblk device model info
+      - /run/udev:/run/udev:ro
     environment:
       - TZ=Europe/Budapest
     labels: