Root cause: regex literals inside template literal (\...\) need exactly 2
backslashes (\\s, \\d) to produce \s, \d in the output. The v9 code had 4
backslashes (\\\\s) which produced literal \\s in the browser (matching
backslash+s instead of whitespace class). This broke:
- 'Running N commands' skip pattern (never matched)
- NOISE_CODE_RE (declare/import line filters)
- cleanLines() pre-strip word boundary \\b and split/join \\n
- cleanButtonText() whitespace strip \\s
The fix restores all regex-literal patterns to exactly 2 backslashes.
new RegExp() string patterns (like NOISE_RE) already used 4 backslashes
correctly (string→regex has one extra escaping layer).
Verified: node eval of generated code confirms /^Running\s*\d+\s*commands?$/i
correctly matches 'Running2 commands' and 'Running 4 commands'.
#task-619 #task-620
8e89209a27