Use mcdsl/terminal for all password prompts

Replace direct golang.org/x/term calls with mcdsl/terminal.ReadPassword
across mciasctl (6 sites), mciasgrpcctl (1 site), and mciasdb (1 site).
Aligns with the new CLI security standard in engineering-standards.md.

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

vendor/modernc.org/sqlite/AUTHORS

@@ -25,8 +25,9 @@ Michael Hoffmann <mhoffm@posteo.de>
 Michael Rykov <mrykov@gmail.com>
 Morgan Bazalgette <morgan@howl.moe>
 Ross Light <ross@zombiezen.com>
+SUSE LLC <moio@suse.com>
 Saed SayedAhmed <saadmtsa@gmail.com>
 Steffen Butzer <steffen(dot)butzer@outlook.com>
 Toni Spets <toni.spets@beeper.com>
 W. Michael Petullo <mike@flyn.org>
-SUSE LLC <moio@suse.com>
+Zhenghao Zhang zhangzhenghao@hotmail.com