[25.12] sing-box: bump to 1.13.18 without Naive outbound support - #30268

Checking PR #30268: [25.12] sing-box: bump to 1.13.18 without Naive outbound support (Makefile Audit)

Commit a188b70 - sing-box: bump to 1.13.18 without Naive outbound support:

✅ PKG_VERSION bump matches context information inside subject line (1.13.18)
✅ Makefile does not assign per-package variables at the top level
✅ Makefile contains valid assignment operators and no spaces after ':='
✅ No feed package forces its own inclusion into buildbot default images via DEFAULT+BUILDBOT
✅ Makefile does not reuse PKG_NAME in call, define, or eval lines
✅ File additions contain clean UNIX (LF) line termination
✅ All modified files contain a trailing newline
✅ Filtered out style/packaging issues already present in upstream commit
✅ Filtered out configuration format issues already present in upstream commit

Package Release Audit:

✅ Package net/sing-box version updated to '1.13.18' and PKG_RELEASE correctly reset to 1