Merge the tactical root ROADMAP.md (SOLIDWORKS PDM gap analysis, Phase 1-6
timelines, project inventory) with the visionary docs/ROADMAP.md (modular
platform architecture, .kc format, dependency tiers) into a single unified
document at docs/ROADMAP.md.
- Adopt dependency tier structure (Tier 0-6) as the organizing spine
- Add Status column to each tier table from project inventory
- Replace Phase 1-6 calendar timelines with Near-Term Priorities section
- Migrate 9 SOLIDWORKS PDM comparison tables to docs/GAP_ANALYSIS.md
- Migrate Feature Comparison Matrix to docs/GAP_ANALYSIS.md
- Preserve Phase 1 task checklists and success metrics as appendices
- Update README.md link from ROADMAP.md to docs/ROADMAP.md
- Delete root ROADMAP.md
