"""
Grid Build sub-package — grid construction pipeline.

Modules:
  - core      — _build_grid_core() main entry point
  - zones     — image loading, graphic/box detection, zone-aware grid building
  - cleanup   — junk row removal, artifact cleanup, pipe dividers
  - text_ops  — color annotation, heading detection, IPA correction
  - cell_ops  — bullet removal, garbled cells, word-box reordering
  - finalize  — dictionary detection, spell checking, result assembly
"""