Add new daemons and debug scripts for Sigenergy and Oracle functionalities

- Implement `sigen_daemon.py` to poll Sigenergy plant metrics and store snapshots.
- Create `web_daemon.py` for serving a web interface with various endpoints.
- Add debug scripts:
  - `debug_duplicates.py` to find duplicate target times in forecast data.
  - `debug_energy_forecast.py` to print baseline energy forecast curves.
  - `debug_oracle_evaluations.py` to run the oracle evaluator.
  - `debug_sigen.py` to inspect stored Sigenergy plant snapshots.
  - `debug_weather.py` to trace resolved truth data.
  - `modbus_test.py` for exploring Sigenergy plants or inverters over Modbus TCP.
- Introduce `oracle_evaluator.py` for evaluating stored oracle predictions against actuals.
- Add TCN training scripts in `tcn` directory for training usage sequence models.

gibil/classes/sigen/__init__.py

@@ -0,0 +1,11 @@
+from gibil.classes.sigen.builder import SigenBuilder, SigenPlantClient
+from gibil.classes.sigen.modbus import SigenModbusClient
+from gibil.classes.sigen.store import SigenStore, SigenStoreConfig
+
+__all__ = [
+    "SigenBuilder",
+    "SigenModbusClient",
+    "SigenPlantClient",
+    "SigenStore",
+    "SigenStoreConfig",
+]