Store transfer files on Contabo Object Storage like Ladill Meet.

Add transfer-files S3 disk, config-driven uploads, and an artisan command to migrate existing local blobs to object storage.

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

deploy/shared.env.example

@@ -64,3 +64,12 @@ TRANSFER_SMS_VOICE_MAX_UPLOAD_KB=5120
 
 AFIA_ENABLED=true
 AFIA_PRODUCT=transfer
+
+# Contabo Object Storage (S3-compatible) — same bucket/account as Ladill Meet.
+TRANSFER_FILES_DISK=transfer-files
+TRANSFER_S3_BUCKET=ladill
+TRANSFER_S3_REGION=default
+TRANSFER_S3_ENDPOINT=https://eu2.contabostorage.com
+TRANSFER_S3_USE_PATH_STYLE=true
+TRANSFER_S3_ACCESS_KEY=
+TRANSFER_S3_SECRET=