Clean up: remove build-for-nas.sh, update deploy docs and push script

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

DEPLOY-NAS.md

@@ -104,7 +104,8 @@ Then the NAS only needs to pull the image; no build on the NAS.
 
 The repo’s Gitea Actions build the image and push it to the Gitea registry. Use this image on your NAS so you always run the latest build.
 
-**Image:** `brassnet.ddns.net:33983/Dawnsorrow/stoat-role-bot:latest`
+**Image:** `brassnet.ddns.net:33983/dawnsorrow/stoat-role-bot:latest`  
+(Registry image names are lowercase; use `dawnsorrow`.)
 
 ### On the NAS (so the image appears in your Docker app)
 
@@ -130,10 +131,10 @@ The repo’s Gitea Actions build the image and push it to the Gitea registry. Us
 
 3. **Pull the image**  
    - In the UI: use “Pull image” (or similar) and enter:
-     `brassnet.ddns.net:33983/Dawnsorrow/stoat-role-bot:latest`
+     `brassnet.ddns.net:33983/dawnsorrow/stoat-role-bot:latest`
    - Or via SSH:
      ```bash
-     docker pull brassnet.ddns.net:33983/Dawnsorrow/stoat-role-bot:latest
+     docker pull brassnet.ddns.net:33983/dawnsorrow/stoat-role-bot:latest
      ```
 
 4. **Create and run the container**  
@@ -144,7 +145,7 @@ The repo’s Gitea Actions build the image and push it to the Gitea registry. Us
    - **Volume**: host folder with `roles.json` → `/app/config`
 
 5. **Updates**  
-   To get the newest version: pull again (`docker pull brassnet.ddns.net:33983/Dawnsorrow/stoat-role-bot:latest` or “Pull” in the UI), then recreate or restart the container.
+   To get the newest version: pull again (`docker pull brassnet.ddns.net:33983/dawnsorrow/stoat-role-bot:latest` or “Pull” in the UI), then recreate or restart the container.
 
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