Update Node-RED configuration and documentation for room management

- Added node-red/config_files/flows_cred.json to .gitignore to prevent committing sensitive credentials.
- Updated documentation references to the new location of room-config.js in node-red/config_files/ for clarity.
- Removed the obsolete room-config.js file, centralizing configuration management.

This update enhances security and improves the organization of Node-RED configuration files, ensuring better management of room settings.

docs/integration/all-lights-and-rooms.md

@@ -8,7 +8,7 @@ This doc explains how to scale the working “test light” setup to **all your
 
 To avoid adding a new room or light in several places, use **one config file** that lives on the Node-RED server and is loaded into **global context** at startup. All function nodes read from `global.get('roomConfig')`.
 
-**Config file:** [`node-red/room-config.js`](../../node-red/room-config.js) — exports `ROOM_CONFIG` with: **roomNames** (NVL SEND), **lightEntityMap** (NVL to HA Sync), **entityToRoom** (HA to NVL), **deviceToRoom** (Zigbee to NVL).
+**Config file:** [`node-red/config_files/room-config.js`](../../node-red/config_files/room-config.js) — exports `ROOM_CONFIG` with: **roomNames** (NVL SEND), **lightEntityMap** (NVL to HA Sync), **entityToRoom** (HA to NVL), **deviceToRoom** (Zigbee to NVL).
 
 **Server location:** `/root/.node-red/room-config.js` (uploaded via `scp`).
 

docs/integration/nodered-flow-check-report.md

@@ -68,7 +68,7 @@ Full file: [node-red/room-config-loader.js](../../node-red/room-config-loader.js
 ## room-config.js on server
 
 `/root/.node-red/room-config.js` is present and contains `roomNames`, `switchBindings`, etc. Upload from repo when you change config:  
-`scp node-red/room-config.js root@10.20.30.12:/root/.node-red/room-config.js`
+`scp node-red/config_files/room-config.js root@nodered.paraskeva.net:/root/.node-red/room-config.js`
 
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