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/wazuh/generate-indexer-certs.yml

@@ -0,0 +1,10 @@
+# Wazuh App Copyright (C) 2017, Wazuh Inc. (License GPLv2)
+version: '3'
+
+services:
+  generator:
+    image: wazuh/wazuh-certs-generator:0.0.2
+    hostname: wazuh-certs-generator
+    volumes:
+      - ./config/wazuh_indexer_ssl_certs/:/certificates/
+      - ./config/certs.yml:/config/certs.yml