fix: add inline shellcheck disable for SC2012 in wrappers

[gtrabanco]

Issue

Bunx/npx wrappers have file-level # shellcheck disable=SC2012 at line 3, but shellcheck only respects inline disables - SC2012 fires on ls -1 lines.

Root cause

File-level disable directive does not suppress line-level warnings. Need inline # shellcheck disable=SC2012 before each ls -1 line.

Occurrences per wrapper: lines 84, 91, 103.

Scope

In scope: inline disable before each ls -1 (6 lines total). Out of scope: adding shellcheck to CI, replacing ls -1.

Acceptance criteria

• Both wrappers have inline disable before each ls -1 line
• static_analysis passes - zero warnings
• lint passes

Effort

XS - 6 lines.