Allows descriptions with apostrophes and other shell-problematic
characters by reading from stdin. Works with both --description=-
and --body=- (the GitHub CLI-style alias).
Example: echo "It's working" | bd create --title "Test" --description=-
Also fixes pre-existing duplicate pinned column/variable declarations.
Fixes beads-iwi
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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