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/postgres/.env

@@ -0,0 +1,5 @@
+POSTGRES_USER=mo
+POSTGRES_PASSWORD=WaQTUw2t
+POSTGRES_DB=homelab
+PG_HOST_PORT=5433
+PG_DATA_DIR=/volume1/docker/postgres/data

apps/postgres/.env.example

@@ -0,0 +1,5 @@
+POSTGRES_USER=mo
+POSTGRES_PASSWORD=WaQTUw2t
+POSTGRES_DB=homelab
+PG_HOST_PORT=5433
+PG_DATA_DIR=/volume1/docker/postgres/data

apps/postgres/README.md

@@ -0,0 +1,8 @@
+# postgres
+
+| | |
+|---|---|
+| **Poort** | 5433 |
+| **Start** | `docker compose up -d` |
+
+Zie [apps/README.md](../README.md) en [RESTORE.md](../../RESTORE.md).

apps/postgres/docker-compose.yml

@@ -0,0 +1,17 @@
+# PostgreSQL — centrale homelab-database (poort 5433 op host).
+# NAS-pad: /volume1/docker/postgres/
+# Start:   cp .env.example .env && docker compose up -d
+
+services:
+  postgres-homelab:
+    image: postgres:16-alpine
+    container_name: postgres-homelab
+    restart: unless-stopped
+    ports:
+      - "${PG_HOST_PORT:-5433}:5432"
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER:-mo}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-WaQTUw2t}
+      POSTGRES_DB: ${POSTGRES_DB:-homelab}
+    volumes:
+      - ${PG_DATA_DIR:-/volume1/docker/postgres/data}:/var/lib/postgresql/data