v0.5.0

v0.5.0 Release Notes

This release expands MCP editing from MVP scope to practical workbook design
flows, and adds new MCP tools for workbook creation, op discovery, and runtime
diagnostics.

Highlights

• Added exstruct_make for one-call workbook creation and initial ops apply.
  • out_path is required, ops is optional.
  • Supports .xlsx, .xlsm, and .xls (with COM constraints on .xls).
• Expanded exstruct_patch design editing operations:
  • draw_grid_border, set_bold, set_font_size, set_font_color,
    set_fill_color, set_dimensions, auto_fit_columns, merge_cells,
    unmerge_cells, set_alignment, set_style, apply_table_style
  • Internal inverse op: restore_design_snapshot
• Added MCP operation schema discovery tools:
  • exstruct_list_ops
  • exstruct_describe_op
• Added MCP runtime diagnostics tool:
  • exstruct_get_runtime_info
• Improved patch UX and output controls:
  • Top-level sheet fallback for non-add_sheet ops (op.sheet has higher
    priority when both are present)
  • Artifact mirroring via mirror_artifact and server --artifact-bridge-dir
  • Backend controls for patch/make: backend input and engine output

Notes

• backend="auto" now prefers COM when available, with controlled fallback to
  openpyxl for compatible cases.
• apply_table_style requested with backend="com" falls back to openpyxl
  with a warning.
• MCP docs and README pages were updated to reflect the new make/patch flows
  and operation schema guidance.