Add system settings, audit logging, user management, and dark mode fixes

System Settings:
- Add SystemSettings.vue with Zabbix integration, SMTP/email config, SAML SSO settings
- Add Setting model with key-value storage and typed values
- Add settings API with caching

Audit Logging:
- Add AuditLog model tracking user, IP, action, entity changes
- Add comprehensive audit logging to all CRUD operations:
  - Machines, Computers, Equipment, Network devices, VLANs, Subnets
  - Printers, USB devices (including checkout/checkin)
  - Applications, Settings, Users/Roles
- Track old/new values for all field changes
- Mask sensitive values (passwords, tokens) in logs

User Management:
- Add UsersList.vue with full user CRUD
- Add Role management with granular permissions
- Add 41 predefined permissions across 10 categories
- Add users API with roles and permissions endpoints

Reports:
- Add TonerReport.vue for printer supply monitoring

Dark Mode Fixes:
- Fix map position section in PCForm, PrinterForm
- Fix alert-warning in KnowledgeBaseDetail
- All components now use CSS variables for theming

CLI Commands:
- Add flask seed permissions
- Add flask seed settings

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

shopdb/core/api/machines.py

@@ -16,7 +16,7 @@ from flask import Blueprint, request, g
 from flask_jwt_extended import jwt_required, current_user
 
 from shopdb.extensions import db
-from shopdb.core.models import Machine, MachineType
+from shopdb.core.models import Machine, MachineType, AuditLog
 from shopdb.core.models.relationship import MachineRelationship, RelationshipType
 from shopdb.utils.responses import (
     success_response,
@@ -259,6 +259,12 @@ def create_machine():
     machine.createdby = current_user.username
 
     db.session.add(machine)
+    db.session.flush()
+
+    # Audit log
+    AuditLog.log('created', 'Machine', entityid=machine.machineid,
+                 entityname=machine.machinenumber)
+
     db.session.commit()
 
     return success_response(
@@ -306,11 +312,22 @@ def update_machine(machine_id: int):
         'requiresmanualconfig', 'notes', 'isactive'
     ]
 
+    # Track changes for audit log
+    changes = {}
     for key, value in data.items():
         if key in allowed_fields:
+            old_val = getattr(machine, key)
+            if old_val != value:
+                changes[key] = {'old': old_val, 'new': value}
             setattr(machine, key, value)
 
     machine.modifiedby = current_user.username
+
+    # Audit log if there were changes
+    if changes:
+        AuditLog.log('updated', 'Machine', entityid=machine.machineid,
+                     entityname=machine.machinenumber, changes=changes)
+
     db.session.commit()
 
     return success_response(machine.to_dict(), message='Machine updated successfully')
@@ -331,6 +348,11 @@ def delete_machine(machine_id: int):
         )
 
     machine.soft_delete(deleted_by=current_user.username)
+
+    # Audit log
+    AuditLog.log('deleted', 'Machine', entityid=machine.machineid,
+                 entityname=machine.machinenumber)
+
     db.session.commit()
 
     return success_response(message='Machine deleted successfully')