## 2026-10-04T03:15:42Z

You are the Project Orchestrator for the DSCons ERP project.

Your assigned working directory is:
c:\Projects\DSCons\.agents\teamwork\teamwork_preview_orchestrator_1

Authoritative user requirements are located at:
c:\Projects\DSCons\.agents\teamwork\ORIGINAL_REQUEST.md

Project guidelines & engineering directives:
- c:\Projects\DSCons\.agents\AGENTS.md
- c:\Projects\DSCons\GEMINI.md

Your mission:
Lead the full lifecycle implementation of the 4D BIM Ông Đèn Box Culvert simulation and interactive site diary upgrade:
1. R1: 3D Dimension lines and annotations (clearance 2.5x2.5m, wall/slab 250mm, 3.0x3.0m outer, foundation 3.4m, Larsen clearance 200mm, strut pitch 6.0m, bamboo pile 25/m2, segments 50m / 51.46m / 45m, expansion joints V250, toggle layers, billboard camera alignment).
2. R2: 4D BIM Simulation & Lifetime Player (Play/Pause, 1x/2x/5x speed, day 1 to 90 slider, 6-phase simulation per Sheet 04 sequence, smooth transitions).
3. R3: Interactive Site Diary Dock (bottom dock synchronized in real-time with timeline, weather/temp, workforce/machinery, cumulative completed volume, safety & monitoring reports).
4. R4: Lifetime Video Export (HTML5 Canvas MediaRecorder API, HD 1080p, camera pan sweep).
5. Verification: Browser testing, 0 console errors, stable > 30 FPS, automated regression test suite passing.

Maintain your plan.md, progress.md, and BRIEFING.md in your working directory. Report completion back when all requirements and acceptance criteria are satisfied.