fix(deploy): add :Z SELinux labels to bind mounts in compose files#3326
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Add the :Z (private unshared) SELinux label to all bind-mounted directories in docker-compose.local.yml and docker-compose.dev.yml. On systems with SELinux in Enforcing mode (e.g. Fedora, RHEL, CentOS), containers using bind mounts are denied access to host directories because the default 'user_home_t' context is not accessible to container processes. The :Z label tells the container runtime to relabel the mount point with 'container_file_t' so the container can read/write it. Named volumes in docker-compose.yml are not affected because the runtime already handles their labels automatically. Fixes permission-denied errors on: - ./data:/app/data - ./postgres_data:/var/lib/postgresql/data - ./redis_data:/data
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