put: report through the view and ask the host-key question through the Prompter

put() loses its MultiProgress parameter: the summary, pre-flight and
connection spinners become view messages, the per-file SFTP transfer
reports determinate progress through view.progress (upload_file takes
a byte-count callback instead of an indicatif bar), and the display is
released through view.suspend on every exit path. The hardcoded
trust-on-first-use prompt in the SSH host-key verification becomes the
Prompter::accept_host_key port (fail-closed by default; the terminal
prompter prints the authenticity banner and confirms), so a remote
frontend can surface its own host-key dialog.

src/main.rs

@@ -564,13 +564,17 @@ fn main() {
                 std::process::exit(1);
             };
 
+            let view = pkh::ui::deb::DebUi::new(&multi);
+            let prompter = pkh::ui::prompt::TerminalPrompter;
             let options = pkh::put::PutOptions {
                 ppa: ppa.to_string(),
                 changes,
                 force,
                 cwd,
+                view: &view,
+                prompter: &prompter,
             };
-            if let Err(e) = rt.block_on(async { pkh::put::put(&options, &multi).await }) {
+            if let Err(e) = rt.block_on(async { pkh::put::put(&options).await }) {
                 error!("{}", e);
                 std::process::exit(1);
             }