fix(ci): write SSH key to /tmp instead of read-only ~/.ssh

.gitea/workflows/build.yml

@@ -53,12 +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' "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_ed25519
-          chmod 600 ~/.ssh/id_ed25519
+          # Installer la clé privée dans /tmp (filesystem accessible en écriture)
+          printf '%s' "${{ secrets.SSH_PRIVATE_KEY }}" > /tmp/id_ed25519
+          chmod 600 /tmp/id_ed25519
 
-          SSH="ssh -o StrictHostKeyChecking=no Stude12@192.168.1.39"
+          SSH="ssh -i /tmp/id_ed25519 -o StrictHostKeyChecking=no Stude12@192.168.1.39"
 
           # Copier docker-compose.prod.yml
           cat docker-compose.prod.yml | $SSH "mkdir -p /volume1/docker/adam-acs && cat > /volume1/docker/adam-acs/docker-compose.prod.yml"