Reorganize repo: one folder per application under apps/.

Move docker/ and configs/ into apps/<name>/ with config/ subfolders.
Proxmox split into hosts/pve and hosts/dell-proxmox. Nginx under
infrastructure/. Update sync script, RESTORE.md, and per-app READMEs.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/remotely/docker-compose.yml

@@ -0,0 +1,11 @@
+# Remotely — remote support (poort 8080).
+
+services:
+  remotely:
+    image: immybot/remotely:latest
+    container_name: remotely
+    restart: always
+    ports:
+      - "${REMOTELY_PORT:-8080}:8080"
+    volumes:
+      - ${REMOTELY_CONFIG_DIR:-/volume1/docker/remotely}:/config