[UI] Adjust week start date (#11934)

* Adjust week start date

Co-authored-by: Copilot <copilot@github.com>

* Change to global setting

---------

Co-authored-by: Copilot <copilot@github.com>

docs/docs/settings/global.md

@@ -32,11 +32,22 @@ Configuration of basic server settings:
 {{ globalsetting("INVENTREE_RESTRICT_ABOUT") }}
 {{ globalsetting("DISPLAY_FULL_NAMES") }}
 {{ globalsetting("DISPLAY_PROFILE_INFO") }}
-{{ globalsetting("INVENTREE_UPDATE_CHECK_INTERVAL") }}
+{{ globalsetting("WEEK_STARTS_ON") }}
+
+Configuration of image download settings:
+
+| Name | Description | Default | Units |
+| ---- | ----------- | ------- | ----- |
 {{ globalsetting("INVENTREE_DOWNLOAD_FROM_URL") }}
 {{ globalsetting("INVENTREE_DOWNLOAD_IMAGE_MAX_SIZE") }}
 {{ globalsetting("INVENTREE_DOWNLOAD_FROM_URL_USER_AGENT") }}
 {{ globalsetting("INVENTREE_STRICT_URLS") }}
+
+Configuration of various scheduled tasks:
+
+| Name | Description | Default | Units |
+| ---- | ----------- | ------- | ----- |
+{{ globalsetting("INVENTREE_UPDATE_CHECK_INTERVAL") }}
 {{ globalsetting("INVENTREE_BACKUP_ENABLE") }}
 {{ globalsetting("INVENTREE_BACKUP_DAYS") }}
 {{ globalsetting("INVENTREE_DELETE_TASKS_DAYS") }}

src/backend/InvenTree/common/setting/system.py

@@ -1210,6 +1210,20 @@ SYSTEM_SETTINGS: dict[str, InvenTreeSettingsKeyType] = {
         'default': True,
         'validator': bool,
     },
+    'WEEK_STARTS_ON': {
+        'name': _('Week Starts On'),
+        'description': _('Starting day of the week, for display in calendar views'),
+        'default': '1',
+        'choices': [
+            ('0', _('Sunday')),
+            ('1', _('Monday')),
+            ('2', _('Tuesday')),
+            ('3', _('Wednesday')),
+            ('4', _('Thursday')),
+            ('5', _('Friday')),
+            ('6', _('Saturday')),
+        ],
+    },
     'TEST_STATION_DATA': {
         'name': _('Enable Test Station Data'),
         'description': _('Enable test station data collection for test results'),

src/frontend/src/components/calendar/Calendar.tsx

@@ -37,6 +37,7 @@ import {
 } from '../../contexts/LanguageContext';
 import type { CalendarState } from '../../hooks/UseCalendar';
 import { useLocalState } from '../../states/LocalState';
+import { useGlobalSettingsState } from '../../states/SettingsStates';
 import { FilterSelectDrawer } from '../../tables/FilterSelectDrawer';
 
 export interface InvenTreeCalendarProps extends CalendarOptions {
@@ -57,6 +58,8 @@ export default function Calendar({
   state,
   ...calendarProps
 }: Readonly<InvenTreeCalendarProps>) {
+  const globalSettings = useGlobalSettingsState();
+
   const [monthSelectOpened, setMonthSelectOpened] = useState<boolean>(false);
 
   const [filtersVisible, setFiltersVisible] = useState<boolean>(false);
@@ -206,6 +209,10 @@ export default function Calendar({
             initialView='dayGridMonth'
             locales={allLocales}
             locale={calendarLocale}
+            firstDay={Number.parseInt(
+              globalSettings.getSetting('WEEK_STARTS_ON') ?? '1',
+              10
+            )}
             headerToolbar={false}
             footerToolbar={false}
             {...calendarProps}

src/frontend/src/pages/Index/Settings/SystemSettings.tsx

@@ -44,7 +44,9 @@ export default function SystemSettings() {
         label: t`Server`,
         icon: <IconServerCog />,
         content: (
+          <>
             <GlobalSettingList
+              heading={t`Server Settings`}
               keys={[
                 'INVENTREE_BASE_URL',
                 'INVENTREE_COMPANY_NAME',
@@ -57,11 +59,22 @@ export default function SystemSettings() {
                 'INVENTREE_RESTRICT_ABOUT',
                 'DISPLAY_FULL_NAMES',
                 'DISPLAY_PROFILE_INFO',
-              'INVENTREE_UPDATE_CHECK_INTERVAL',
+                'WEEK_STARTS_ON'
+              ]}
+            />
+            <GlobalSettingList
+              heading={t`Image Download Settings`}
+              keys={[
                 'INVENTREE_DOWNLOAD_FROM_URL',
                 'INVENTREE_DOWNLOAD_IMAGE_MAX_SIZE',
                 'INVENTREE_DOWNLOAD_FROM_URL_USER_AGENT',
-              'INVENTREE_STRICT_URLS',
+                'INVENTREE_STRICT_URLS'
+              ]}
+            />
+            <GlobalSettingList
+              heading={t`Scheduled Tasks`}
+              keys={[
+                'INVENTREE_UPDATE_CHECK_INTERVAL',
                 'INVENTREE_BACKUP_ENABLE',
                 'INVENTREE_BACKUP_DAYS',
                 'INVENTREE_DELETE_TASKS_DAYS',
@@ -71,6 +84,7 @@ export default function SystemSettings() {
                 'INVENTREE_PROTECT_EMAIL_LOG'
               ]}
             />
+          </>
         )
       },
       {