🎉 Initial commit: project scaffold, agent modes, and gnarly_csv example

- Add .roomodes with four custom Roo agents:
    • excalidraw-to-python  – diagram → typed Python skeleton
    • python-coder          – skeleton → production implementation (design patterns)
    • tester                – pytest suite writer & runner
    • orchestrator          – coordinates the full excalidraw→code→test→execute pipeline
- Add src/csv_grok.py and tests/test_csv_grok.py (CSV diff utility)
- Add examples/gnarly_csv/ with gnarly_csv_delta.py and sample data (rev_a/rev_b)
- Add drawings/ with design.excalidraw and gnarly_csv_files.excalidraw
- Add docs/excalidraw-to-python-agent.md
- Add requirements.txt and .gitignore

examples/gnarly_csv/data/rev_a.csv

@@ -0,0 +1,9 @@
+subsystem,meas_current_mA,meas_voltage_mV,meas_power_mW,meas_temp_C,rail_power_mW,subsys_power_mW,cluster_power_mW,soc_power_mW,battery_power_mW
+CPU,850,1050,892.5,72.3,910.0,1820.0,3640.0,5460.0,6200.0
+GPU,1200,950,1140.0,81.5,1160.0,2320.0,4640.0,6960.0,7900.0
+DRAM,430,1200,516.0,55.1,530.0,1060.0,2120.0,3180.0,3600.0
+NPU,620,1100,682.0,68.4,700.0,1400.0,2800.0,4200.0,4750.0
+ISP,310,1050,325.5,49.7,340.0,680.0,1360.0,2040.0,2300.0
+PCIe,180,1800,324.0,44.2,335.0,670.0,1340.0,2010.0,2250.0
+USB,95,1800,171.0,38.6,180.0,360.0,720.0,1080.0,1200.0
+Display,540,1200,648.0,61.8,660.0,1320.0,2640.0,3960.0,4500.0