fix: workaround bug Woodpecker - valeur statique CI requise pour from_secret

.woodpecker.yml

@@ -32,19 +32,29 @@ steps:
       - 'grep -q "^\.env$" .gitignore || (echo "ERREUR: .env manquant dans .gitignore" && exit 1)'
       - echo "Verifications de securite OK"
 
-  # Debug regression : reproduire exactement pipeline 26
-  - name: debug-regression
+  # Etape 3a : Ecriture du .env depuis les secrets
+  # NOTE: valeur statique obligatoire (bug Woodpecker next : environment sans statique = secrets vides)
+  - name: write-env
     image: alpine:3.20
     environment:
-      TEST_STATIC: hello-world
+      CI: woodpecker
       PS_DOMAIN:
         from_secret: ps_domain
       PS_ADMIN_FOLDER:
         from_secret: ps_admin_folder
+      PRESTASHOP_ADMIN_EMAIL:
+        from_secret: prestashop_admin_email
+      PRESTASHOP_ADMIN_PASSWORD:
+        from_secret: prestashop_admin_password
+      DB_ROOT_PASSWORD:
+        from_secret: db_root_password
+      DB_PASSWORD:
+        from_secret: db_password
     commands:
-      - env | grep -E "TEST_STATIC|PS_DOMAIN|PS_ADMIN"
+      - printf 'PS_DOMAIN=%s\nPS_ADMIN_FOLDER=%s\nPRESTASHOP_ADMIN_EMAIL=%s\nPRESTASHOP_ADMIN_PASSWORD=%s\nDB_ROOT_PASSWORD=%s\nDB_PASSWORD=%s\n' "${PS_DOMAIN}" "${PS_ADMIN_FOLDER}" "${PRESTASHOP_ADMIN_EMAIL}" "${PRESTASHOP_ADMIN_PASSWORD}" "${DB_ROOT_PASSWORD}" "${DB_PASSWORD}" > .env.deploy
+      - echo "Fichier .env.deploy cree ($(wc -c < .env.deploy) octets)"
 
-  # Etape 3b : Deploiement sur sonic via Docker socket (sans secrets)
+  # Etape 3b : Deploiement sur sonic via Docker socket
   - name: deploy
     image: docker:27-cli
     volumes: