Fix CI: remove optional secret overrides step

Empty optional secrets made [ -n ... ] && echo fail under set -e.
Job env already defines host, user, and deploy path.

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

.gitea/workflows/deploy-talkpro.yml

@@ -3,10 +3,7 @@
 # Required Gitea repo secret (Settings → Secrets → Actions):
 #   TALKPRO_SSH_PRIVATE_KEY  full PEM for ubuntu@talkpro (same as luis-only.pem)
 #
-# Optional secrets (override defaults below):
-#   TALKPRO_HOST             default 13.214.179.69
-#   TALKPRO_USER             default ubuntu
-#   TALKPRO_REMOTE_ROOT      default /home/ubuntu/talkpro
+# Host/user/path defaults are in the `env:` block below (edit there if needed).
 #
 # Requires a runner with: node 22+, npm, rsync, ssh, ssh-keyscan.
 
@@ -48,16 +45,6 @@ jobs:
             exit 1
           fi
 
-      - name: Apply optional secret overrides
-        env:
-          SECRET_HOST: ${{ secrets.TALKPRO_HOST }}
-          SECRET_USER: ${{ secrets.TALKPRO_USER }}
-          SECRET_ROOT: ${{ secrets.TALKPRO_REMOTE_ROOT }}
-        run: |
-          [ -n "$SECRET_HOST" ] && echo "TALKPRO_HOST=$SECRET_HOST" >> "$GITHUB_ENV"
-          [ -n "$SECRET_USER" ] && echo "TALKPRO_USER=$SECRET_USER" >> "$GITHUB_ENV"
-          [ -n "$SECRET_ROOT" ] && echo "TALKPRO_REMOTE_ROOT=$SECRET_ROOT" >> "$GITHUB_ENV"
-
       - name: Trust host key
         run: |
           mkdir -p ~/.ssh