Observer: \\\\s (4-backslash) → \\s (2-backslash) in template literal regex
- Per known-issues rule: regex literals need 2-backslash for \s, \d etc.
- Old: literal \\s matched, new: whitespace class matched correctly
http-bridge: /^[\s\\\/]*[\w_.-]+\s*[>»$#]\s*$/ → /^.*[>»$#]\s*$/
- Old pattern failed on ellipsis '…' prefix (U+2026 not in charset)
- Terminal prompt '…\\gravity_control >' was passing through as cmd
- New pattern: any text ending with prompt marker is skipped
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