refactor(backend)!: separate algorithm and data layers

Reorganize algorithm packages by business responsibility, move orchestration into services, and keep database access behind pooled repositories.

Harden analysis API validation, remove unsafe legacy simulation endpoints, and add regression and architecture boundary coverage.

BREAKING CHANGE: legacy algorithm module paths and obsolete simulation endpoints are removed.

tests/unit/test_project_scada_metadata.py

@@ -4,7 +4,7 @@ from unittest.mock import AsyncMock
 from uuid import uuid4
 
 from app.api.v1.endpoints import project_data
-from app.infra.db.timescaledb import composite_queries
+from app.services import timeseries_analysis as composite_queries
 
 
 PROJECT_SCADA = {
@@ -48,7 +48,7 @@ def test_realtime_scada_simulation_uses_current_project_metadata(monkeypatch):
     )
 
     result = asyncio.run(
-        composite_queries.CompositeQueries.get_scada_associated_realtime_simulation_data(
+        composite_queries.TimeseriesAnalysisService.get_scada_associated_realtime_simulation_data(
             object(),
             object(),
             [PROJECT_SCADA["device_id"]],
@@ -82,7 +82,7 @@ def test_analysis_scada_simulation_uses_current_project_metadata(monkeypatch):
     )
 
     result = asyncio.run(
-        composite_queries.CompositeQueries.get_scada_associated_analysis_simulation_data(
+        composite_queries.TimeseriesAnalysisService.get_scada_associated_analysis_simulation_data(
             object(),
             object(),
             [PROJECT_SCADA["device_id"]],
@@ -114,7 +114,7 @@ def test_element_scada_query_uses_current_project_metadata(monkeypatch):
     )
 
     result = asyncio.run(
-        composite_queries.CompositeQueries.get_element_associated_scada_data(
+        composite_queries.TimeseriesAnalysisService.get_element_associated_scada_data(
             object(),
             object(),
             "J1",