✨ feat(admin): improve search and owner selection

- debounce admin searches to reduce API calls while typing
- apply 300ms debounce to alerts, audit, devices, posts
- allow clearing selected owner in device creation form

🐛 fix(admin): correct admin data and filters

- use invariant culture for CSV numeric report values
- align default report end date with UTC day boundary
- prevent duplicate owner row in device member list
- make user growth date filtering EF translatable
- clear report preset when user picks a custom date range
- send zero-valued admin filter parameters in API client

src/GreenHome.Api/Controllers/AdminController.cs

@@ -1,3 +1,4 @@
+using System.Globalization;
 using System.Text;
 using GreenHome.Api.Filters;
 using GreenHome.Application;
@@ -261,7 +262,7 @@ public sealed class AdminController : ControllerBase
         if (csv)
             return ToCsvFile("report-users",
                 new[] { "تاریخ", "کاربران جدید", "کاربران فعال" },
-                rows.Select(r => new[] { r.Date.ToString("yyyy-MM-dd"), r.NewUsers.ToString(), r.ActiveUsers.ToString() }), t);
+                rows.Select(r => new[] { r.Date.ToString("yyyy-MM-dd"), r.NewUsers.ToString(CultureInfo.InvariantCulture), r.ActiveUsers.ToString(CultureInfo.InvariantCulture) }), t);
         return Ok(rows);
     }
 
@@ -274,7 +275,7 @@ public sealed class AdminController : ControllerBase
         if (csv)
             return ToCsvFile("report-devices-uptime",
                 new[] { "دستگاه", "مالک", "کل روزها", "روزهای آنلاین", "درصد آنلاین" },
-                rows.Select(r => new[] { r.DeviceName, r.OwnerName, r.TotalDays.ToString(), r.OnlineDays.ToString(), r.OnlinePercent.ToString() }), t);
+                rows.Select(r => new[] { r.DeviceName, r.OwnerName, r.TotalDays.ToString(CultureInfo.InvariantCulture), r.OnlineDays.ToString(CultureInfo.InvariantCulture), r.OnlinePercent.ToString(CultureInfo.InvariantCulture) }), t);
         return Ok(rows);
     }
 
@@ -287,13 +288,14 @@ public sealed class AdminController : ControllerBase
         if (csv)
             return ToCsvFile("report-usage-by-user",
                 new[] { "نام", "نام خانوادگی", "موبایل", "پیامک", "تماس صوتی", "درخواست هوش مصنوعی", "توکن هوش مصنوعی" },
-                rows.Select(r => new[] { r.Name, r.Family, r.Mobile, r.Sms.ToString(), r.VoiceCall.ToString(), r.AiQueries.ToString(), r.AiTokens.ToString() }), t);
+                rows.Select(r => new[] { r.Name, r.Family, r.Mobile, r.Sms.ToString(CultureInfo.InvariantCulture), r.VoiceCall.ToString(CultureInfo.InvariantCulture), r.AiQueries.ToString(CultureInfo.InvariantCulture), r.AiTokens.ToString(CultureInfo.InvariantCulture) }), t);
         return Ok(rows);
     }
 
+    // ponytail: day boundary is UTC (whole system is UTC); if user timezone matters later, make report range timezone-aware.
     private static (DateTime From, DateTime To) ResolveReportRange(DateTime? from, DateTime? to)
     {
-        var t = (to ?? DateTime.Today).Date;
+        var t = (to ?? DateTime.UtcNow).Date;
         var f = (from ?? t.AddDays(-6)).Date;
         return (f, t);
     }

src/GreenHome.Infrastructure/Services/Admin/AdminService.cs

@@ -334,6 +334,9 @@ public sealed class AdminService : IAdminService
         if (await _dbContext.Devices.AnyAsync(d => d.DeviceName == deviceName, cancellationToken))
             return new AdminDeviceCreateResult { Outcome = AdminDeviceCreateOutcome.ConflictDuplicateName, Message = $"دستگاهی با نام «{deviceName}» از قبل وجود دارد" };
 
+        // ponytail: no transaction around AddDevice + settings — services save independently.
+        // If settings creation fails after the device exists, a device without settings is left behind;
+        // UpdateDeviceSettingsAsync self-heals (creates settings when they are missing).
         var deviceId = await _deviceService.AddDeviceAsync(new DeviceDto
         {
             DeviceName = deviceName,
@@ -504,24 +507,43 @@ public sealed class AdminService : IAdminService
             .ThenBy(du => du.UserId)
             .ToListAsync(cancellationToken);
 
-        var result = new List<AdminDeviceMemberDto>(members.Count + 1);
+        var ownerUserId = device.User.Id;
+        var ownerMember = members.FirstOrDefault(du => du.UserId == ownerUserId);
+        var membersWithoutOwner = members.Where(du => du.UserId != ownerUserId).ToList();
 
-        // owner row first (owner is NOT in DeviceUsers)
+        var result = new List<AdminDeviceMemberDto>(membersWithoutOwner.Count + 1);
-        result.Add(new AdminDeviceMemberDto
-        {
-            UserId = device.User.Id,
-            Name = device.User.Name,
-            Family = device.User.Family,
-            Mobile = device.User.Mobile,
-            MemberName = device.User.Name,
-            MemberFamily = device.User.Family,
-            Role = Domain.DeviceMemberRole.Manager,
-            ReceiveAlerts = true,
-            AvatarPath = null,
-            IsOwner = true
-        });
 
-        result.AddRange(members.Select(du => new AdminDeviceMemberDto
+        // owner row first; if the owner is also in DeviceUsers, mark that row IsOwner
+        // instead of emitting a duplicate row (every user appears exactly once).
+        result.Add(ownerMember != null
+            ? new AdminDeviceMemberDto
+            {
+                UserId = ownerMember.UserId,
+                Name = ownerMember.User.Name,
+                Family = ownerMember.User.Family,
+                Mobile = ownerMember.User.Mobile,
+                MemberName = string.IsNullOrWhiteSpace(ownerMember.Name) ? ownerMember.User.Name : ownerMember.Name,
+                MemberFamily = string.IsNullOrWhiteSpace(ownerMember.Family) ? ownerMember.User.Family : ownerMember.Family,
+                Role = ownerMember.Role,
+                ReceiveAlerts = ownerMember.ReceiveAlerts,
+                AvatarPath = ownerMember.AvatarPath,
+                IsOwner = true
+            }
+            : new AdminDeviceMemberDto
+            {
+                UserId = ownerUserId,
+                Name = device.User.Name,
+                Family = device.User.Family,
+                Mobile = device.User.Mobile,
+                MemberName = device.User.Name,
+                MemberFamily = device.User.Family,
+                Role = Domain.DeviceMemberRole.Manager,
+                ReceiveAlerts = true,
+                AvatarPath = null,
+                IsOwner = true
+            });
+
+        result.AddRange(membersWithoutOwner.Select(du => new AdminDeviceMemberDto
         {
             UserId = du.UserId,
             Name = du.User.Name,
@@ -837,31 +859,30 @@ public sealed class AdminService : IAdminService
 
     public async Task<IReadOnlyList<AdminUserGrowthRowDto>> GetUserGrowthReportAsync(DateTime from, DateTime to, CancellationToken cancellationToken)
     {
-        var fromDate = DateOnly.FromDateTime(from.Date);
+        // ponytail: DateTime.Date is not EF-translatable, so the day filter is a range
-        var toDate = DateOnly.FromDateTime(to.Date);
+        // comparison and the (bounded, in-range) timestamps are grouped in memory.
+        var fromDate = from.Date;
+        var toDateExclusive = to.Date.AddDays(1);
 
-        var newUsers = await _dbContext.Users.AsNoTracking()
+        var newDates = await _dbContext.Users.AsNoTracking()
-            .Where(u => DateOnly.FromDateTime(u.CreatedAt) >= fromDate && DateOnly.FromDateTime(u.CreatedAt) <= toDate)
+            .Where(u => u.CreatedAt >= fromDate && u.CreatedAt < toDateExclusive)
-            .Select(u => new { Date = DateOnly.FromDateTime(u.CreatedAt) })
+            .Select(u => u.CreatedAt.Date)
-            .GroupBy(x => x.Date)
+            .ToListAsync(cancellationToken);
-            .Select(g => new { Date = g.Key, Count = g.Count() })
+        var newUsers = newDates.GroupBy(d => d).ToDictionary(g => g.Key, g => g.Count());
-            .ToDictionaryAsync(x => x.Date, x => x.Count, cancellationToken);
 
-        var activeUsers = await _dbContext.Users.AsNoTracking()
+        var activeDates = await _dbContext.Users.AsNoTracking()
-            .Where(u => u.LastLoginAt != null
+            .Where(u => u.LastLoginAt != null && u.LastLoginAt >= fromDate && u.LastLoginAt < toDateExclusive)
-                && DateOnly.FromDateTime(u.LastLoginAt!.Value) >= fromDate
+            .Select(u => u.LastLoginAt!.Value.Date)
-                && DateOnly.FromDateTime(u.LastLoginAt!.Value) <= toDate)
+            .ToListAsync(cancellationToken);
-            .Select(u => new { Date = DateOnly.FromDateTime(u.LastLoginAt!.Value) })
+        var activeUsers = activeDates.GroupBy(d => d).ToDictionary(g => g.Key, g => g.Count());
-            .GroupBy(x => x.Date)
-            .Select(g => new { Date = g.Key, Count = g.Count() })
-            .ToDictionaryAsync(x => x.Date, x => x.Count, cancellationToken);
 
         var rows = new List<AdminUserGrowthRowDto>();
-        for (var day = fromDate; day <= toDate; day = day.AddDays(1))
+        for (var day = fromDate; day < toDateExclusive; day = day.AddDays(1))
         {
+            var key = DateOnly.FromDateTime(day);
             rows.Add(new AdminUserGrowthRowDto
             {
-                Date = day,
+                Date = key,
                 NewUsers = newUsers.GetValueOrDefault(day),
                 ActiveUsers = activeUsers.GetValueOrDefault(day)
             });

src/GreenHome.Web/src/app/admin/alerts/page.tsx

@@ -10,6 +10,7 @@ import { Badge } from '@/components/common/Badge'
 import { Button } from '@/components/common/Button'
 import { EmptyState } from '@/components/common/EmptyState'
 import { SearchInput } from '@/components/forms/SearchInput'
+import { useDebounce } from '@/hooks/useDebounce'
 
 const PAGE_SIZE = 20
 
@@ -84,6 +85,13 @@ export default function AdminAlertsPage() {
         }
     }
 
+    const debouncedDeviceSearch = useDebounce(deviceSearch, 300)
+
+    useEffect(() => {
+        if (debouncedDeviceSearch) searchDevices(debouncedDeviceSearch)
+        else setDeviceResults([])
+    }, [debouncedDeviceSearch])
+
     const applyLast7Days = () => {
         setFrom(daysAgoIso(6))
         setTo(new Date().toISOString().slice(0, 10))
@@ -134,9 +142,9 @@ export default function AdminAlertsPage() {
                     <div className="relative w-52">
                         <SearchInput
                             value={deviceSearch}
-                            onValueChange={(v) => { setDeviceSearch(v); searchDevices(v) }}
+                            onValueChange={(v) => setDeviceSearch(v)}
                             onSubmit={(v) => searchDevices(v ?? deviceSearch)}
-                            onClear={() => { setDeviceId(''); setDeviceResults([]); setPage(1) }}
+                            onClear={() => { setDeviceId(''); setDeviceSearch(''); setDeviceResults([]); setPage(1) }}
                             placeholder="فیلتر دستگاه..."
                             showSearchButton={false}
                         />

src/GreenHome.Web/src/app/admin/audit/page.tsx

@@ -9,6 +9,7 @@ import { Pagination } from '@/components/navigation/Pagination'
 import { Badge } from '@/components/common/Badge'
 import { EmptyState } from '@/components/common/EmptyState'
 import { SearchInput } from '@/components/forms/SearchInput'
+import { useDebounce } from '@/hooks/useDebounce'
 
 const PAGE_SIZE = 20
 
@@ -52,6 +53,13 @@ export default function AdminAuditPage() {
         }
     }
 
+    const debouncedAdminSearch = useDebounce(adminSearch, 300)
+
+    useEffect(() => {
+        if (debouncedAdminSearch) searchAdmins(debouncedAdminSearch)
+        else setAdminResults([])
+    }, [debouncedAdminSearch])
+
     const clearAdminFilter = () => {
         setAdminId('')
         setAdminSearch('')
@@ -92,7 +100,7 @@ export default function AdminAuditPage() {
                     <>
                         <SearchInput
                             value={adminSearch}
-                            onValueChange={(v) => { setAdminSearch(v); searchAdmins(v) }}
+                            onValueChange={(v) => setAdminSearch(v)}
                             onSubmit={(v) => searchAdmins(v ?? adminSearch)}
                             placeholder="فیلتر ادمین..."
                             showSearchButton={false}

src/GreenHome.Web/src/app/admin/devices/page.tsx

@@ -1,7 +1,7 @@
 'use client'
 
 import { FormEvent, useCallback, useEffect, useState } from 'react'
-import { Cpu, Thermometer, Eye, MessageSquare, PhoneCall, Plus, Pencil, Users, Bell, BellOff } from 'lucide-react'
+import { Cpu, Thermometer, Eye, MessageSquare, PhoneCall, Plus, Pencil, Users, Bell, BellOff, X } from 'lucide-react'
 import { api, PagedResult, AdminDeviceListItem, AdminDeviceDetail, AdminDeviceTestResult, AdminDeviceMember, AdminUserListItem } from '@/lib/api'
 import { resolveAssetUrl } from '@/lib/api/assets'
 import { toPersianDigits } from '@/lib/format/persian-digits'
@@ -11,6 +11,7 @@ import { SearchInput } from '@/components/forms/SearchInput'
 import { FormInput } from '@/components/forms/FormInput'
 import { Select } from '@/components/forms/Select'
 import { Pagination } from '@/components/navigation/Pagination'
+import { useDebounce } from '@/hooks/useDebounce'
 import { Badge } from '@/components/common/Badge'
 import { Button } from '@/components/common/Button'
 import { Modal } from '@/components/common/Modal'
@@ -402,6 +403,13 @@ function CreateDeviceForm({ onCreated }: { onCreated: () => void }) {
         }
     }
 
+    const debouncedOwnerSearch = useDebounce(ownerSearch, 300)
+
+    useEffect(() => {
+        if (debouncedOwnerSearch) searchOwners(debouncedOwnerSearch)
+        else setOwnerResults([])
+    }, [debouncedOwnerSearch])
+
     const submit = async (e: FormEvent) => {
         e.preventDefault()
         if (!owner) { setMessage({ kind: 'error', text: 'لطفاً مالک دستگاه را انتخاب کنید.' }); return }
@@ -441,13 +449,23 @@ function CreateDeviceForm({ onCreated }: { onCreated: () => void }) {
                 {owner ? (
                     <div className="flex items-center justify-between bg-green-50 border border-green-200 rounded-lg px-3 py-2">
                         <span className="text-sm font-medium text-gray-900">{owner.name} {owner.family}</span>
-                        <span className="text-xs text-gray-400" dir="ltr">{toPersianDigits(owner.mobile)}</span>
+                        <div className="flex items-center gap-2">
+                            <span className="text-xs text-gray-400" dir="ltr">{toPersianDigits(owner.mobile)}</span>
+                            <button
+                                type="button"
+                                title="تغییر مالک"
+                                className="p-1 rounded text-green-700 hover:bg-green-100"
+                                onClick={() => { setOwner(null); setOwnerResults([]); setOwnerSearch('') }}
+                            >
+                                <X className="w-4 h-4" />
+                            </button>
+                        </div>
                     </div>
                 ) : (
                     <>
                         <SearchInput
                             value={ownerSearch}
-                            onValueChange={(v) => { setOwnerSearch(v); if (v !== undefined) searchOwners(v) }}
+                            onValueChange={(v) => setOwnerSearch(v)}
                             onSubmit={(v) => { const s = v ?? ownerSearch; setOwnerSearch(s); searchOwners(s) }}
                             placeholder="جستجو بر اساس نام یا موبایل..."
                         />

src/GreenHome.Web/src/app/admin/posts/page.tsx

@@ -14,6 +14,7 @@ import { Button } from '@/components/common/Button'
 import { EmptyState } from '@/components/common/EmptyState'
 import { SegmentTab } from '@/components/common/SegmentTab'
 import { Modal } from '@/components/common/Modal'
+import { useDebounce } from '@/hooks/useDebounce'
 import { useConfirmDialog } from '@/components/utils/ConfirmDialog'
 import type { AdminDeviceListItem, AdminUserListItem } from '@/lib/api'
 
@@ -129,6 +130,19 @@ export default function AdminPostsPage() {
         }
     }
 
+    const debouncedDeviceSearch = useDebounce(deviceSearch, 300)
+    const debouncedAuthorSearch = useDebounce(authorSearch, 300)
+
+    useEffect(() => {
+        if (debouncedDeviceSearch) searchDevices(debouncedDeviceSearch)
+        else setDeviceResults([])
+    }, [debouncedDeviceSearch])
+
+    useEffect(() => {
+        if (debouncedAuthorSearch) searchAuthors(debouncedAuthorSearch)
+        else setAuthorResults([])
+    }, [debouncedAuthorSearch])
+
     const openDetail = async (post: AdminPostItem) => {
         setDetailLoading(true)
         setDetail(null)
@@ -195,7 +209,7 @@ export default function AdminPostsPage() {
                     <div className="relative w-52">
                         <SearchInput
                             value={deviceSearch}
-                            onValueChange={(v) => { setDeviceSearch(v); if (v !== undefined) searchDevices(v) }}
+                            onValueChange={(v) => setDeviceSearch(v)}
                             onSubmit={(v) => { const s = v ?? deviceSearch; setDeviceSearch(s); searchDevices(s) }}
                             placeholder="فیلتر دستگاه..."
                             className="text-xs"
@@ -219,7 +233,7 @@ export default function AdminPostsPage() {
                     <div className="relative w-52">
                         <SearchInput
                             value={authorSearch}
-                            onValueChange={(v) => { setAuthorSearch(v); if (v !== undefined) searchAuthors(v) }}
+                            onValueChange={(v) => setAuthorSearch(v)}
                             onSubmit={(v) => { const s = v ?? authorSearch; setAuthorSearch(s); searchAuthors(s) }}
                             placeholder="فیلتر نویسنده..."
                             className="text-xs"

src/GreenHome.Web/src/app/admin/reports/page.tsx

@@ -28,7 +28,7 @@ export default function AdminReportsPage() {
     const [tab, setTab] = useState<ReportTab>('users')
     const [from, setFrom] = useState(daysAgo(6))
     const [to, setTo] = useState(new Date().toISOString().slice(0, 10))
-    const [preset, setPreset] = useState<RangePreset>(7)
+    const [preset, setPreset] = useState<RangePreset | null>(7)
 
     const [loading, setLoading] = useState(true)
     const [csvBusy, setCsvBusy] = useState(false)
@@ -64,7 +64,7 @@ export default function AdminReportsPage() {
 
     const onDateChange = (setter: (v: string) => void) => (e: ChangeEvent<HTMLInputElement>) => {
         setter(e.target.value)
-        setPreset(0 as unknown as RangePreset)
+        setPreset(null)
     }
 
     const downloadCsv = async () => {

src/GreenHome.Web/src/lib/api/client.ts

@@ -259,7 +259,7 @@ export const api = {
     adminAlerts: (q: { deviceId?: number; status?: number; from?: string; to?: string; page?: number; pageSize?: number }) => {
         const params = new URLSearchParams()
         if (q.deviceId) params.set('deviceId', String(q.deviceId))
-        if (q.status) params.set('status', String(q.status))
+        if (q.status != null) params.set('status', String(q.status))
         if (q.from) params.set('from', q.from)
         if (q.to) params.set('to', q.to)
         if (q.page) params.set('page', String(q.page))
@@ -269,7 +269,7 @@ export const api = {
     adminPosts: (q: { deviceId?: number; authorUserId?: number; postType?: number; from?: string; to?: string; page?: number; pageSize?: number }) => {
         const params = new URLSearchParams()
         if (q.deviceId) params.set('deviceId', String(q.deviceId))
-        if (q.authorUserId) params.set('authorUserId', String(q.authorUserId))
+        if (q.authorUserId != null) params.set('authorUserId', String(q.authorUserId))
         if (q.postType != null) params.set('postType', String(q.postType))
         if (q.from) params.set('from', q.from)
         if (q.to) params.set('to', q.to)
@@ -286,7 +286,7 @@ export const api = {
         http<AdminDeviceTestResult>(`${API_BASE}/api/admin/devices/${deviceId}/test-voice`, { method: 'POST' }),
     adminAuditLogs: (q: { adminId?: number; page?: number; pageSize?: number }) => {
         const params = new URLSearchParams()
-        if (q.adminId) params.set('adminId', String(q.adminId))
+        if (q.adminId != null) params.set('adminId', String(q.adminId))
         if (q.page) params.set('page', String(q.page))
         if (q.pageSize) params.set('pageSize', String(q.pageSize))
         return http<PagedResult<AdminAuditLogItem>>(`${API_BASE}/api/admin/audit-logs?${params.toString()}`)