add church profile.

API/ROLAC.API/Data/DbSeeder.cs

@@ -208,6 +208,50 @@ public static class DbSeeder
         }
     }
 
+    public static async Task SeedSiteSettingAsync(AppDbContext db)
+    {
+        // Singleton row holding site-wide presentation/locale settings.
+        if (!await db.SiteSettings.AnyAsync())
+        {
+            db.SiteSettings.Add(new SiteSetting
+            {
+                SiteTitle       = "River Of Life Christian Church",
+                SiteTitleZh     = "生命河靈糧堂",
+                DefaultLanguage = "en",
+                TimeZone        = "America/Los_Angeles",
+                DateFormat      = "yyyy-MM-dd",
+                Currency        = "USD",
+            });
+            await db.SaveChangesAsync();
+        }
+    }
+
+    public static async Task SeedNotificationSettingAsync(AppDbContext db, IConfiguration config)
+    {
+        // Singleton row that becomes the runtime source of truth for SMTP + Line. Seed it once
+        // from the legacy "Smtp"/"Line" appsettings sections so existing config carries over.
+        if (!await db.NotificationSettings.AnyAsync())
+        {
+            var smtp = config.GetSection("Smtp");
+            var line = config.GetSection("Line");
+            db.NotificationSettings.Add(new NotificationSetting
+            {
+                EnableEmail            = !string.IsNullOrWhiteSpace(smtp["Host"]),
+                SmtpHost               = smtp["Host"] ?? "",
+                SmtpPort               = int.TryParse(smtp["Port"], out var port) ? port : 587,
+                SmtpUseSsl             = !bool.TryParse(smtp["UseSsl"], out var ssl) || ssl,
+                SmtpUser               = smtp["User"] ?? "",
+                SmtpPassword           = smtp["Password"] ?? "",
+                FromAddress            = smtp["FromAddress"] ?? "",
+                FromName               = smtp["FromName"] ?? "",
+                EnableLine             = !string.IsNullOrWhiteSpace(line["ChannelAccessToken"]),
+                LineChannelAccessToken = line["ChannelAccessToken"] ?? "",
+                LineChannelSecret      = line["ChannelSecret"] ?? "",
+            });
+            await db.SaveChangesAsync();
+        }
+    }
+
     /// <summary>
     /// Seeds roles and (in Development) the default admin account.
     /// Called once on application startup after migrations have been applied.
@@ -217,6 +261,7 @@ public static class DbSeeder
         var roleManager = services.GetRequiredService<RoleManager<AppRole>>();
         var userManager = services.GetRequiredService<UserManager<AppUser>>();
         var env         = services.GetRequiredService<IWebHostEnvironment>();
+        var config      = services.GetRequiredService<IConfiguration>();
 
         await SeedRolesAsync(roleManager);
 
@@ -226,6 +271,8 @@ public static class DbSeeder
         await SeedMinistriesAsync(db);
         await SeedExpenseCategoriesAsync(db);
         await SeedChurchProfileAsync(db);
+        await SeedSiteSettingAsync(db);
+        await SeedNotificationSettingAsync(db, config);
 
         if (env.IsDevelopment())
             await SeedAdminUserAsync(userManager);