fix: trigger initial CWD emission with cd . after OSC 7 hook inject

precmd/PROMPT_COMMAND only fire after a command runs. Without cd .
the first OSC 7 never emits and SFTP doesn't know the initial directory.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src-tauri/src/ssh/session.rs

@@ -170,7 +170,7 @@ impl SshService {
                 r#"elif [ -n "$BASH_VERSION" ]; then "#,
                 r#"PROMPT_COMMAND='printf "\033]7;file://%s%s\033\\\\" "$HOSTNAME" "$PWD"'; "#,
                 r#"fi; "#,
-                "stty echo; clear\n"
+                "stty echo; clear; cd .\n"
             );
             let h = handle.lock().await;
             let _ = h.data(channel_id, CryptoVec::from_slice(osc7_hook.as_bytes())).await;