feat: Add profitability calculation schemas and service functions

- Introduced Pydantic schemas for profitability calculations in `schemas/calculations.py`.
- Implemented service functions for profitability calculations in `services/calculations.py`.
- Added new exception class `ProfitabilityValidationError` for handling validation errors.
- Created repositories for managing project and scenario profitability snapshots.
- Developed a utility script for verifying authenticated routes.
- Added a new HTML template for the profitability calculator interface.
- Implemented a script to fix user ID sequence in the database.

services/unit_of_work.py

@@ -13,8 +13,10 @@ from services.repositories import (
     PricingSettingsRepository,
     PricingSettingsSeedResult,
     ProjectRepository,
+    ProjectProfitabilityRepository,
     RoleRepository,
     ScenarioRepository,
+    ScenarioProfitabilityRepository,
     SimulationParameterRepository,
     UserRepository,
     ensure_admin_user as ensure_admin_user_record,
@@ -36,6 +38,8 @@ class UnitOfWork(AbstractContextManager["UnitOfWork"]):
         self.scenarios: ScenarioRepository | None = None
         self.financial_inputs: FinancialInputRepository | None = None
         self.simulation_parameters: SimulationParameterRepository | None = None
+        self.project_profitability: ProjectProfitabilityRepository | None = None
+        self.scenario_profitability: ScenarioProfitabilityRepository | None = None
         self.users: UserRepository | None = None
         self.roles: RoleRepository | None = None
         self.pricing_settings: PricingSettingsRepository | None = None
@@ -47,6 +51,11 @@ class UnitOfWork(AbstractContextManager["UnitOfWork"]):
         self.financial_inputs = FinancialInputRepository(self.session)
         self.simulation_parameters = SimulationParameterRepository(
             self.session)
+        self.project_profitability = ProjectProfitabilityRepository(
+            self.session)
+        self.scenario_profitability = ScenarioProfitabilityRepository(
+            self.session
+        )
         self.users = UserRepository(self.session)
         self.roles = RoleRepository(self.session)
         self.pricing_settings = PricingSettingsRepository(self.session)
@@ -65,6 +74,8 @@ class UnitOfWork(AbstractContextManager["UnitOfWork"]):
         self.scenarios = None
         self.financial_inputs = None
         self.simulation_parameters = None
+        self.project_profitability = None
+        self.scenario_profitability = None
         self.users = None
         self.roles = None
         self.pricing_settings = None