Implement FornbergMC::redistributeBoundaryParameters() - Adaptive point redistribution

[ehkropf]

Location: src/methods/FornbergMC.cpp:396-410

Description:
Implement boundary parameter redistribution to handle clustering and reordering during Newton iteration.

Requirements:

• Detect when boundary parameters cluster or reorder
• Redistribute points when quality degrades
• Preserve boundary orientation
• Update boundary correspondences accordingly

TODOs addressed:

• Line 408: Debug log "Checking boundary parameter distribution quality"
• Line 410: Implement redistribution logic

Why Phase 2:
This is a numerical robustness feature. Not required for basic algorithm functionality, but important for challenging geometries.

MATLAB Reference: design/fornberg/fornmc/matlab/+bounded_map/ (redistribution logic)

See also: Thesis section on boundary point ordering challenges

[ehkropf]

Deferred until forward map validated via comparison testing (#72 → #73 → #74 → #75).

[ehkropf]

Removed from phase 2 because this is a future improvement; it wasn't in the original implementation. Should be done after the first POC release as part of any needed improvement cycle.