Fix failing regression-tests CI job: mise shim argv[0] and webapp x position

[Copilot]

Two test bugs introduced in recent commits caused the regression-tests job to fail.

tests/scripts/mise.test.sh — shim argv[0] assertion

The test for exec -a argv[0] preservation used perl -e 'print $0', but Perl always sets $0 to "-e" for inline scripts regardless of the actual argv[0]. Since Perl is a native ELF binary, exec -a name perl script.pl correctly propagates argv[0] at the OS level — it just can't be observed via $0 in -e mode.

Fix: replace the inline script with a Perl script file that reads /proc/$$/cmdline to get the real argv[0]:

# Before (always outputs "-e")
shim_output=$(PATH="$binary_bin:/usr/bin" "$shim" -e 'print $0')

# After (reads true argv[0] from the process cmdline)
cat >"$perl_script" <<'PERL'
open(my $fh, '<', "/proc/$$/cmdline") or die $!;
local $/; my $data = <$fh>; close $fh;
my @args = split /\0/, $data;
print $args[0], "\n";
PERL
shim_output=$(PATH="$binary_bin:/usr/bin" "$shim" "$perl_script")

tests/scripts/launch-floating-webapp.test.sh — wrong expected x position

The expected x coordinate was 1520 but the script correctly computes 1514:

1920 (monitor_width) − 10 (reserved_right) − 380 (WIDTH) − 16 (RIGHT_MARGIN) = 1514

Fix: update the assertion from x = 1520 to x = 1514.

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	dotfiles-docs	fcb4281	Commit Preview URL Branch Preview URL	Aug 14 2026, 01:46 PM