This commit addresses the issue #506 where mole would exit prematurely
during application support scanning.
Changes:
1. Remove 4 redundant pipefail disable/restore blocks:
- safe_find_delete() in lib/core/file_ops.sh
- safe_sudo_find_delete() in lib/core/file_ops.sh
- fix_broken_preferences() in lib/optimize/maintenance.sh
- opt_saved_state_cleanup() in lib/optimize/tasks.sh
These were unnecessary because process substitution (< <(cmd)) is not
affected by pipefail - only real pipelines (cmd1 | cmd2) are.
2. Fix real bug in fix_broken_preferences():
- Add || true to ((broken_count++)) on lines 35 and 55
- This prevents set -e from exiting when broken_count starts at 0
Fixes#506
