Consolidated documentation structure: - Merged duplicate coordinate frame sections into single coherent section - Extracted rendering system to docs/rendering.md (308 lines) - Extracted future work roadmap to docs/future_work.md (258 lines) - Renamed implementation_plan.md → technical_reference.md for clarity - Added spacecraft and maneuver config loader documentation - Updated all cross-references (README.md, AGENTS.md, opencode.json) - Removed obsolete AccelerationContext struct reference Total: +646 lines documentation, 2 new files, 1 renamed