Beta Branch fix broken _dmotd_fancy_capable() locale gate and $COLUMNS ordering i…

fix broken _dmotd_fancy_capable() locale gate and $COLUMNS ordering in 140.00beta01

Two related capability-gate fixes:

CX1 — Capture inbound locale before the L14-17 export block forces
LC_ALL/LANG/LC_CTYPE to en_US.UTF-8. The gate at _dmotd_fancy_capable()
previously read the just-exported values, making the UTF-8 check a
no-op: it always passed regardless of the user's actual terminal
locale. Now the gate consults _dmotd_user_lc_all / _dmotd_user_lc_ctype
/ _dmotd_user_lang captured at script start, restoring the design
intent. Users with LC_ALL=C or LANG=POSIX on capable-looking
terminals no longer silently get fancy rendering with mojibake.

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CX2 — Probe tput cols </dev/tty first; fall back to $COLUMNS only
when tput cannot determine width. A stale exported $COLUMNS from a
previously-wider terminal (e.g. tmux split, multiplexed session)
would otherwise let fancy activate on a now-narrower PTY.

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140.00beta01 branch

• Branch: https://github.com/centminmod/centminmod/tree/140.00beta01
• Commit History: https://github.com/centminmod/centminmod/commits/140.00beta01