v3.0.0

VortexStepMethod v3.0.0

Diff since v2.3.0

Breaking Changes

Unified Wing type

• Wing and RamAirWing merged into a single Wing struct
• RamAirWing constructor replaced by ObjWing (returns a Wing with
  OBJ-specific fields populated)
• Renamed ram_geometry.jl → obj_geometry.jl

Unrefined sections replace panel grouping

• n_groups replaced by n_unrefined_sections in Wing, WingSettings, and
  SolverSettings
• PanelGroupingMethod enum removed
• Each refined panel maps back to its unrefined section via
  refined_panel_mapping
• n_groups and grouping_method in YAML settings files emit a deprecation
  warning and are ignored

Renamed VSMSolution fields (_array → _dist)

• panel_width_array → width_dist
• alpha_array → alpha_dist
• cl_array → cl_dist, cd_array → cd_dist, cm_array → cm_dist
• panel_lift → lift_dist, panel_drag → drag_dist
• panel_moment → panel_moment_dist
• group_moment_dist → moment_unrefined_dist
• Type parameter Solver{P,G} / VSMSolution{P,G} changed to Solver{P,U} /
  VSMSolution{P,U} (U = unrefined sections)

Mesh refinement separated from reinit

• reinit! no longer re-refines the mesh; it only updates panel properties from
  existing refined_sections
• New refine! function handles mesh refinement explicitly

Changed

• Consistent naming convention: _dist = per-panel, _unrefined_dist =
  per-unrefined-section
• correct_aoa solver setting added (default false)
• alpha_geometric is now the angle between apparent wind and chord
• Panel width calculation uses sum instead of average
• src/plotting.jl removed; all plotting moved to Makie and ControlPlots
  extensions
• TestEnv no longer required as a global dependency

Added

• n_unrefined_sections field in Wing for tracking pre-refinement sections
• refined_panel_mapping for automatic panel-to-section association
• Unrefined distribution fields in VSMSolution: cl_unrefined_dist,
  cd_unrefined_dist, cm_unrefined_dist, alpha_unrefined_dist,
  moment_unrefined_dist, width_unrefined_dist
• alpha_geometric_dist field in VSMSolution
• unrefined_deform! for applying twist and TE deflection to unrefined
  sections; non_deformed_sections preserved for reset/re-deformation
• refine! function for explicit mesh refinement
• plot_combined_analysis in the Makie extension
• Literature comparison plotting in the Makie extension
• obj_file and dat_file fields in WingSettings
• sort_sections kwarg for section ordering control
• Separate test/Project.toml and examples/Project.toml
• New tests: test_unrefined_dist.jl, test_refinement_validation.jl,
  test_yaml_wing_deformation.jl

Removed

• RamAirWing type (use ObjWing or Wing directly)
• PanelGroupingMethod enum
• n_groups from WingSettings, SolverSettings, and YAML files
• src/plotting.jl (920 lines moved to extensions)

Merged pull requests:

• Unify RamAirWing and Wing into Wing (#204) (@1-Bart-1)