fix(ci): inject SSH_PRIVATE_KEY secret with printf to preserve LF line endings

.gitea/workflows/build.yml

@@ -53,6 +53,11 @@ jobs:
         run: |
           apk add --no-cache openssh-client
 
+          # Installer la clé privée depuis le secret (générée en LF pur)
+          mkdir -p ~/.ssh
+          printf '%s' "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+
           SSH="ssh -o StrictHostKeyChecking=no Stude12@192.168.1.39"
 
           # Copier docker-compose.prod.yml