HDDS-15368. Remove static horizontal divider from ozone interactive shell

[will-sh]

What changes were proposed in this pull request?

HDDS-15368. Remove static horizontal divider from ozone interactive shell

The ozone interactive REPL (introduced under HDDS-11825) used JLine TailTipWidgets with TipType.COMPLETER to show command synopsis below Tab completion. That integration also enabled the JLine Status pane with a static horizontal border (────), which sometimes could caused poor UX when the terminal was resized, copied, or when completion overlapped.

This change removes TailTipWidgets from the interactive REPL and relies on LineReader-only tab completion (AUTO_LIST, LIST_AMBIGUOUS, LIST_MAX=50). That eliminates the Status border and the duplicate or “ghost” completion lines seen after window resize (WINCH). A blank line is printed after each command (and after the startup banner) so the prompt is visually separated without a hardcoded rule line—aligned with common shells such as mysql and spark-shell.

Additionally, a small startup banner (OzoneInteractiveWelcome) is shown when entering ozone interactive: Ozone release version, configured OM/SCM endpoints, and short hints for help, Tab completion, and ozone version. Shell exposes an interactiveWelcomeLines() hook (default empty); OzoneInteractiveShell overrides it to supply the banner.

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-15368

How was this patch tested?

• CI is passed in fork repo
• Tested ozone interactive command manually for tab completion and resizing the window

Currently it is like below:

bash-5.1$ ozone interactive
Apache Ozone Interactive Shell 2.2.0-SNAPSHOT(Katmai)
Using OM: om:9862
Using SCM: scm:9860

Type 'help' for command synopsis; 'exit' or Ctrl-D to quit.
Press Tab to complete subcommands; type '-' then Tab to complete options.
Run 'ozone version' for full build details.

ozone> 

[adoroszlai]

Thanks @will-sh for the improvement.