Fix client examples gap: unified refinement and GSM auto-select.

Harden PDC prediction accuracy against client golden examples.

feat: v2.3 AI construction suggestion, client reed list, and archive article picker

fix: regenerate TRD.pdf with proper print layout pipeline

docs: update TRD to v2.2 for client feasibility engine

Update PDC platform: fix reference rendering, keep full filter coverage, and reformat TRD readability