Packages (macOS): adds support for dram package manager

[spoodyz]

Summary

Adds package counting for dram, a bottle-only Homebrew-compatible package manager for macOS written in Rust. dram installs homebrew-core bottles into its own prefix (~/.dram by default). Its Cellar layout has the same shape as Homebrew's (Cellar/<name>/<version>/), so counting is the same single directory scan used for brew.

Related issue (required for new logos for new distros)

N/A, no logo changes.

Changes

• src/detection/packages/packages.h: dram count field
• src/modules/packages/option.h: FF_PACKAGES_FLAG_DRAM_BIT (bit 37, picked up automatically by the CMake package-manager regex)
• src/detection/packages/packages_apple.c: detection. Respects DRAM_PREFIX, defaults to ~/.dram, counts Cellar/ entries, mirroring the HOMEBREW_PREFIX/MACPORTS_PREFIX handling.
• src/modules/packages/packages.c: display, format arg, disable parsing (both paths), JSON config generation, format doc entry
• doc/json_schema.json: disabled enum entry, format arg list renumbered

Screenshots

Checklist

• I have tested my changes locally.
  • default detection (~/.dram/Cellar)
  • DRAM_PREFIX override (missing prefix means no entry shown)
  • "disabled": ["dram"] JSON config
  • --format json reports the dram count
  • -DPACKAGES_REMOVE_DISABLED=ON -DPACKAGES_DISABLE_DRAM=ON builds cleanly and omits dram