feat: add scenarios list page with metrics and quick actions

- Introduced a new template for listing scenarios associated with a project.
- Added metrics for total, active, draft, and archived scenarios.
- Implemented quick actions for creating new scenarios and reviewing project overview.
- Enhanced navigation with breadcrumbs for better user experience.

refactor: update Opex and Profitability templates for consistency

- Changed titles and button labels for clarity in Opex and Profitability templates.
- Updated form IDs and action URLs for better alignment with new naming conventions.
- Improved navigation links to include scenario and project overviews.

test: add integration tests for Opex calculations

- Created new tests for Opex calculation HTML and JSON flows.
- Validated successful calculations and ensured correct data persistence.
- Implemented tests for currency mismatch and unsupported frequency scenarios.

test: enhance project and scenario route tests

- Added tests to verify scenario list rendering and calculator shortcuts.
- Ensured scenario detail pages link back to the portfolio correctly.
- Validated project detail pages show associated scenarios accurately.

tests/test_dashboard_route.py

@@ -2,6 +2,8 @@ from __future__ import annotations
 
 from fastapi.testclient import TestClient
 
+from models import MiningOperationType
+
 
 class TestDashboardRoute:
     def test_renders_empty_state(self, client: TestClient) -> None:
@@ -17,9 +19,18 @@ class TestDashboardRoute:
 
 class TestProjectUIRoutes:
     def test_projects_ui_page_resolves(self, client: TestClient) -> None:
+        create_payload = {
+            "name": "UI Project",
+            "location": "Peru",
+            "operation_type": MiningOperationType.OPEN_PIT.value,
+            "description": "Project for UI validation",
+        }
+        client.post("/projects", json=create_payload)
+
         response = client.get("/projects/ui")
         assert response.status_code == 200
         assert "Projects" in response.text
+        assert "project-card" in response.text
 
     def test_projects_create_form_resolves(self, client: TestClient) -> None:
         response = client.get("/projects/create")