[Alerts] Customizable job alerts + Help capabilities showcase

Job alerts (هشدار شغلی): users save what they want — scope (shift/job/both), role, city, shift type, employment type, minimum pay — and get notified when an employer posts a match. New JobAlert model + AlertScope enum + DbContext (user-cascade, role set-null, IsActive index) + migration. /Me/Alerts page to create/pause/delete alerts; entry point added to the کارجو panel. NotificationService.NotifyNewShift/Job now unions preference matches with active-alert matches (deduped) so alert owners are notified on publish. Help page gains an 'امکانات همکادر' capability showcase grid (with a 'ساخت هشدار شغلی' CTA) so the page demonstrates what the app does.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/JobsMedical.Web/Pages/Me/Alerts.cshtml

@@ -0,0 +1,134 @@
+@page
+@model JobsMedical.Web.Pages.Me.AlertsModel
+@{
+    ViewData["Title"] = "هشدارهای شغلی";
+    string ScopeLabel(JobsMedical.Web.Models.AlertScope s) => s switch
+    {
+        JobsMedical.Web.Models.AlertScope.Shifts => "شیفت",
+        JobsMedical.Web.Models.AlertScope.Jobs => "استخدام",
+        _ => "شیفت و استخدام",
+    };
+    string ShiftLabel(JobsMedical.Web.Models.ShiftType t) => t switch
+    {
+        JobsMedical.Web.Models.ShiftType.Day => "صبح",
+        JobsMedical.Web.Models.ShiftType.Evening => "عصر",
+        JobsMedical.Web.Models.ShiftType.Night => "شب",
+        _ => "آنکال",
+    };
+    string EmpLabel(JobsMedical.Web.Models.EmploymentType t) => t switch
+    {
+        JobsMedical.Web.Models.EmploymentType.FullTime => "تمام‌وقت",
+        JobsMedical.Web.Models.EmploymentType.PartTime => "پاره‌وقت",
+        JobsMedical.Web.Models.EmploymentType.Contract => "قراردادی",
+        _ => "طرح",
+    };
+}
+
+<div class="page-head">
+    <div class="container">
+        <h1>🔎 هشدارهای شغلی</h1>
+        <p class="muted">بگو دنبال چه فرصتی هستی؛ هر وقت کارفرمایی آگهی متناسب ثبت کرد، فوری باخبرت می‌کنیم. <a asp-page="/Me/Index">← پنل کارجو</a></p>
+    </div>
+</div>
+
+<div class="container section" style="max-width:760px;">
+    @if (Model.Msg is not null) { <div class="alert alert-success">@Model.Msg</div> }
+
+    <div class="card card-pad" style="margin-bottom:16px;">
+        <h3 style="margin-top:0;">ساخت هشدار جدید</h3>
+        <form method="post" asp-page-handler="Create">
+            <div class="filter-group">
+                <label>نوع فرصت</label>
+                <select name="Scope">
+                    <option value="0">شیفت و استخدام (هر دو)</option>
+                    <option value="1">فقط شیفت</option>
+                    <option value="2">فقط استخدام</option>
+                </select>
+            </div>
+            <div style="display:flex; gap:8px; flex-wrap:wrap;">
+                <div class="filter-group" style="flex:1; min-width:160px;">
+                    <label>نقش</label>
+                    <select name="RoleId">
+                        <option value="">هر نقشی</option>
+                        @foreach (var r in Model.Roles) { <option value="@r.Id">@r.Name</option> }
+                    </select>
+                </div>
+                <div class="filter-group" style="flex:1; min-width:160px;">
+                    <label>شهر</label>
+                    <select name="CityId">
+                        <option value="">هر شهری</option>
+                        @foreach (var c in Model.Cities) { <option value="@c.Id">@c.Name</option> }
+                    </select>
+                </div>
+            </div>
+            <div style="display:flex; gap:8px; flex-wrap:wrap;">
+                <div class="filter-group" style="flex:1; min-width:160px;">
+                    <label>نوع شیفت (برای شیفت)</label>
+                    <select name="ShiftType">
+                        <option value="">فرقی نمی‌کند</option>
+                        <option value="0">صبح</option>
+                        <option value="1">عصر</option>
+                        <option value="2">شب</option>
+                        <option value="3">آنکال</option>
+                    </select>
+                </div>
+                <div class="filter-group" style="flex:1; min-width:160px;">
+                    <label>نوع همکاری (برای استخدام)</label>
+                    <select name="EmploymentType">
+                        <option value="">فرقی نمی‌کند</option>
+                        <option value="0">تمام‌وقت</option>
+                        <option value="1">پاره‌وقت</option>
+                        <option value="2">قراردادی</option>
+                        <option value="3">طرح</option>
+                    </select>
+                </div>
+            </div>
+            <div class="filter-group">
+                <label>حداقل حقوق/دستمزد مورد انتظار (تومان)</label>
+                <input type="number" name="MinPay" min="0" step="100000" dir="ltr" placeholder="مثلاً ۲۰۰۰۰۰۰" />
+                <p class="muted" style="font-size:12px; margin:4px 0 0;">برای شیفت: مبلغ هر شیفت؛ برای استخدام: حقوق ماهانه. خالی = بدون محدودیت.</p>
+            </div>
+            <div class="filter-group">
+                <label>برچسب (اختیاری)</label>
+                <input type="text" name="Label" placeholder="مثلاً پرستار شب تهران" />
+            </div>
+            <button type="submit" class="btn btn-accent btn-block btn-lg">ساخت هشدار</button>
+        </form>
+    </div>
+
+    <h3>هشدارهای من (@JalaliDate.ToPersianDigits(Model.Alerts.Count.ToString()))</h3>
+    @if (Model.Alerts.Count == 0)
+    {
+        <div class="card empty-state">هنوز هشداری نساخته‌ای. اولین هشدار را بالا بساز تا فرصت‌ها از دستت نروند.</div>
+    }
+    else
+    {
+        foreach (var a in Model.Alerts)
+        {
+            <div class="card card-pad" style="margin-bottom:10px; @(a.IsActive ? "" : "opacity:.6;")">
+                <div class="row" style="display:flex; justify-content:space-between; align-items:flex-start; gap:10px;">
+                    <div>
+                        <strong>@(a.Label ?? "هشدار شغلی")</strong>
+                        @if (!a.IsActive) { <span class="badge badge-type">غیرفعال</span> }
+                        <div class="muted" style="font-size:13px; margin-top:4px;">
+                            <span class="badge badge-type">@ScopeLabel(a.Scope)</span>
+                            @if (a.Role is not null) { <span class="badge badge-type">@a.Role.Name</span> }
+                            @if (a.City is not null) { <span>📍 @a.City.Name</span> }
+                            @if (a.ShiftType is not null) { <span class="badge badge-day">@ShiftLabel(a.ShiftType.Value)</span> }
+                            @if (a.EmploymentType is not null) { <span class="badge badge-job">@EmpLabel(a.EmploymentType.Value)</span> }
+                            @if (a.MinPay is not null) { <span>حداقل @JalaliDate.ToPersianDigits(a.MinPay.Value.ToString("#,0")) تومان</span> }
+                        </div>
+                    </div>
+                    <div style="display:flex; gap:6px; flex-wrap:wrap;">
+                        <form method="post" asp-page-handler="Toggle" asp-route-id="@a.Id" style="display:inline;">
+                            <button type="submit" class="btn btn-outline" style="padding:5px 12px;">@(a.IsActive ? "توقف" : "فعال‌سازی")</button>
+                        </form>
+                        <form method="post" asp-page-handler="Delete" asp-route-id="@a.Id" style="display:inline;" onsubmit="return confirm('این هشدار حذف شود؟');">
+                            <button type="submit" class="btn btn-outline" style="padding:5px 12px; color:var(--danger); border-color:var(--danger);">حذف</button>
+                        </form>
+                    </div>
+                </div>
+            </div>
+        }
+    }
+</div>

src/JobsMedical.Web/Pages/Me/Alerts.cshtml.cs

@@ -0,0 +1,79 @@
+using System.Security.Claims;
+using JobsMedical.Web.Data;
+using JobsMedical.Web.Models;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.EntityFrameworkCore;
+
+namespace JobsMedical.Web.Pages.Me;
+
+/// <summary>Job alerts (هشدار شغلی) — saved searches that notify the user on a new matching listing.</summary>
+[Authorize]
+public class AlertsModel : PageModel
+{
+    private readonly AppDbContext _db;
+    public AlertsModel(AppDbContext db) => _db = db;
+
+    public List<Role> Roles { get; private set; } = new();
+    public List<City> Cities { get; private set; } = new();
+    public List<JobAlert> Alerts { get; private set; } = new();
+    [TempData] public string? Msg { get; set; }
+
+    [BindProperty] public string? Label { get; set; }
+    [BindProperty] public AlertScope Scope { get; set; } = AlertScope.Any;
+    [BindProperty] public int? RoleId { get; set; }
+    [BindProperty] public int? CityId { get; set; }
+    [BindProperty] public ShiftType? ShiftType { get; set; }
+    [BindProperty] public EmploymentType? EmploymentType { get; set; }
+    [BindProperty] public long? MinPay { get; set; }
+
+    private int Uid => int.Parse(User.FindFirstValue(ClaimTypes.NameIdentifier)!);
+
+    public async Task OnGetAsync() => await LoadAsync();
+
+    public async Task<IActionResult> OnPostCreateAsync()
+    {
+        if (await _db.JobAlerts.CountAsync(a => a.UserId == Uid) >= 20)
+        {
+            Msg = "حداکثر تعداد هشدار شغلی ساخته شده است.";
+            return RedirectToPage();
+        }
+        _db.JobAlerts.Add(new JobAlert
+        {
+            UserId = Uid,
+            Label = string.IsNullOrWhiteSpace(Label) ? null : Label.Trim(),
+            Scope = Scope,
+            RoleId = RoleId,
+            CityId = CityId,
+            ShiftType = Scope == AlertScope.Jobs ? null : ShiftType,
+            EmploymentType = Scope == AlertScope.Shifts ? null : EmploymentType,
+            MinPay = MinPay is > 0 ? MinPay : null,
+        });
+        await _db.SaveChangesAsync();
+        Msg = "هشدار شغلی ساخته شد. به‌محض ثبت آگهی متناسب، باخبر می‌شوی.";
+        return RedirectToPage();
+    }
+
+    public async Task<IActionResult> OnPostToggleAsync(int id)
+    {
+        var a = await _db.JobAlerts.FirstOrDefaultAsync(x => x.Id == id && x.UserId == Uid);
+        if (a is not null) { a.IsActive = !a.IsActive; await _db.SaveChangesAsync(); }
+        return RedirectToPage();
+    }
+
+    public async Task<IActionResult> OnPostDeleteAsync(int id)
+    {
+        var a = await _db.JobAlerts.FirstOrDefaultAsync(x => x.Id == id && x.UserId == Uid);
+        if (a is not null) { _db.JobAlerts.Remove(a); await _db.SaveChangesAsync(); }
+        return RedirectToPage();
+    }
+
+    private async Task LoadAsync()
+    {
+        Roles = await _db.Roles.Where(r => r.IsActive).OrderBy(r => r.SortOrder).ToListAsync();
+        Cities = await _db.Cities.Where(c => c.IsActive).OrderBy(c => c.Name).ToListAsync();
+        Alerts = await _db.JobAlerts.Include(a => a.Role).Include(a => a.City)
+            .Where(a => a.UserId == Uid).OrderByDescending(a => a.CreatedAt).ToListAsync();
+    }
+}

src/JobsMedical.Web/Pages/Me/Index.cshtml

@@ -35,7 +35,10 @@
                 }
             </span>
         </div>
-        <a class="btn btn-outline" asp-page="/Preferences/Index">تنظیم علاقه‌مندی‌ها</a>
+        <div style="display:flex; gap:8px; flex-wrap:wrap;">
+            <a class="btn btn-outline" asp-page="/Me/Alerts">🔎 هشدارهای شغلی</a>
+            <a class="btn btn-outline" asp-page="/Preferences/Index">تنظیم علاقه‌مندی‌ها</a>
+        </div>
     </div>
 
     @if (Model.Recommendations.Count > 0)