Add settings management infrastructure: models, API, views, and database loading

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

app/views/settings.py

@@ -0,0 +1,78 @@
+"""
+Settings management views for the application.
+"""
+
+import logging
+from fastapi import Request, Depends, HTTPException, status
+from fastapi.responses import RedirectResponse
+from sqlalchemy.orm import Session
+
+from app.views.base import APIRouter, templates, require_login, settings, get_db
+from app.utils.settings_service import get_settings_by_category, get_setting_metadata, SETTING_METADATA
+from app.utils.config_validator.masking import mask_sensitive_value
+
+logger = logging.getLogger(__name__)
+router = APIRouter()
+
+
+def require_admin_access(request: Request):
+    """Check if user is admin and redirect if not"""
+    user = request.session.get("user")
+    if not user or not user.get("is_admin"):
+        logger.warning(f"Non-admin user attempted to access settings page")
+        return RedirectResponse(url="/", status_code=status.HTTP_302_FOUND)
+    return None
+
+
+@router.get("/settings")
+@require_login
+async def settings_page(request: Request, db: Session = Depends(get_db)):
+    """
+    Settings management page - admin only.
+    """
+    # Check admin access
+    redirect = require_admin_access(request)
+    if redirect:
+        return redirect
+    
+    try:
+        # Get settings organized by category
+        categories = get_settings_by_category()
+        
+        # Build settings data for display
+        settings_data = {}
+        for category, keys in categories.items():
+            settings_data[category] = []
+            for key in keys:
+                # Get current value from settings
+                value = getattr(settings, key, None)
+                
+                # Get metadata
+                metadata = get_setting_metadata(key)
+                
+                # Mask sensitive values
+                display_value = value
+                if metadata.get("sensitive") and value:
+                    display_value = mask_sensitive_value(value)
+                
+                settings_data[category].append({
+                    "key": key,
+                    "value": value if value is not None else "",
+                    "display_value": display_value if display_value is not None else "",
+                    "metadata": metadata
+                })
+        
+        return templates.TemplateResponse(
+            "settings.html",
+            {
+                "request": request,
+                "settings_data": settings_data,
+                "app_version": settings.version
+            }
+        )
+    except Exception as e:
+        logger.error(f"Error loading settings page: {e}")
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Failed to load settings page"
+        )