fix: prevent masonry layout shift on infinite scroll

Added overflow-y: scroll to html element to always reserve scrollbar
space. When content grows beyond viewport, the scrollbar appearance
would reduce container width by ~17px, causing CSS column masonry to
recalculate and shift items leftward. Fixes #146.

Lactose/Controllers/AuthController.cs

@@ -97,6 +97,16 @@ public class AuthController(
         };
     }
 
+    /// <summary>
+    /// Checks whether user registration is currently enabled.
+    /// </summary>
+    /// <returns>200 if enabled, 403 if disabled.</returns>
+    [HttpGet("register")]
+    public ActionResult CheckRegistrationEnabled() {
+        var regSetting = settingsRepository.Get(Settings.UserRegistrationEnabled.AsString());
+        return regSetting?.Value == "true" ? Ok() : StatusCode(403);
+    }
+
     /// <summary>
     /// Registers a new user account.
     /// </summary>

Lactose/Services/JobScheduler.cs

@@ -158,9 +158,19 @@ public class JobScheduler(IServiceProvider serviceProvider, ILogger<JobScheduler
             logger?.LogWarning("A file system crawl job is already in progress, cannot queue another at this moment.");
             return;
         }
+        // if the scheduled scan list isn't populated, fetch active folders directly from DB
+        var targetFolders = folders;
+        if (targetFolders == null || targetFolders.Count == 0) {
+            using var scope = serviceProvider.CreateScope();
+            var folderRepo = scope.ServiceProvider.GetRequiredService<IFolderRepository>();
+            targetFolders = folderRepo.GetAll().Where(f => f.Active).ToList();
+        }
         // queue a crawl job for each active folder
-        folders?.ForEach(f => { jobManager.EnqueueJob(jobManager.CreateJob<FileSystemCrawlJob>(f.Id, f.BasePath)); });
-        logger?.LogInformation("Queued file system crawl jobs.");
+        targetFolders.ForEach(f => { jobManager.EnqueueJob(jobManager.CreateJob<FileSystemCrawlJob>(f.Id, f.BasePath)); });
+        if (targetFolders.Count > 0)
+            logger?.LogInformation("Queued {Count} file system crawl job(s).", targetFolders.Count);
+        else
+            logger?.LogWarning("No active folders to scan.");
     }
     
     /// <summary>

MilkStream.Client/Components/Pages/Jobs.razor

@@ -131,10 +131,10 @@
             <JobTree Jobs="_filteredSorted" FetchChildren="FetchChildren" EmptyText="" PollInterval="pollInterval" />
             @if (pastJobTotal > pastJobPageSize) {
                 <div class="d-flex align-items-center justify-content-center gap-2 py-1 border-top">
-                    <button class="btn btn-sm btn-secondary" disabled="@(pastJobPage <= 1)" @onclick="() => LoadPastJobs(pastJobPage - 1)">
+                    <button class="btn btn-sm btn-secondary" disabled="@(pastJobPage <= 0)" @onclick="() => LoadPastJobs(pastJobPage - 1)">
                         <i class="bi bi-chevron-left"></i> Prev
                     </button>
-                    <span class="small text-muted">@pastJobPage / @pastJobTotalPages</span>
+                    <span class="small text-muted">@(pastJobPage + 1) / @pastJobTotalPages</span>
                     <button class="btn btn-sm btn-secondary" disabled="@(pastJobPage >= pastJobTotalPages)" @onclick="() => LoadPastJobs(pastJobPage + 1)">
                         Next <i class="bi bi-chevron-right"></i>
                     </button>
@@ -155,7 +155,7 @@
 
     List<JobStatusDto> activeRoots  = [];
     List<JobStatusDto> pastJobRoots = [];
-    int                pastJobPage      = 1;
+    int                pastJobPage      = 0;
     int                pastJobPageSize  = 15;
     int                pastJobTotal     = 0;
     int                pastJobTotalPages => Math.Max(1, (int)Math.Ceiling((double)pastJobTotal / pastJobPageSize));
@@ -213,11 +213,11 @@
             return;
         }
         LoginService.LoggedUserChanged += async (_, _) => {
-            await RefreshActiveRoots();
-            await LoadPastJobs(1);
+        await RefreshActiveRoots();
+        await LoadPastJobs(0);
         };
         await RefreshActiveRoots();
-        await LoadPastJobs(1);
+        await LoadPastJobs(0);
         StartPolling();
     }
 
@@ -232,7 +232,7 @@
             StartPolling();
         } else {
             StopPolling();
-            await LoadPastJobs(1);
+            await LoadPastJobs(0);
         }
     }
 
@@ -310,7 +310,7 @@
             await JobsService.StartJob(jobType);
             errorMessage = null;
             await RefreshActiveRoots();
-            if (pastJobPage != 1) pastJobPage = 1;
+            if (pastJobPage != 0) pastJobPage = 0;
             await LoadPastJobs(pastJobPage);
         } catch (HttpRequestException ex) when ((int?)ex.StatusCode == 501) {
             errorMessage = $"{jobType} is not yet implemented on the server.";

MilkStream.Client/Components/Pages/Register.razor

@@ -1,3 +1,4 @@
+@using System.Net
 @page "/Register"
 
 @inject LoginService loginService
@@ -5,30 +6,39 @@
 
 <PageTitle>Register</PageTitle>
 
-<div class="d-flex flex-column mx-sm-auto mx-3">
-    @if (!string.IsNullOrEmpty(_error)) {
-        <div class="m-2 p-1 border-danger border-2 rounded-3 bg-danger-subtle">
-            <div class="text-danger-emphasis m-2">@_error</div>
-        </div>
-    }
-    <form class="d-flex flex-column align-items-center">
-        <input type="text" class="form-control my-1" placeholder="Username" required="required" id="username"
-               @bind="_username" @bind:event="oninput"/>
-        <input type="email" class="form-control my-1" placeholder="Email" required="required" id="email"
-               @bind="_email" @bind:event="oninput"/>
+@if (_checkingStatus) {
+    <LoadSpinner/>
+} else if (_registrationDisabled) {
+    <EmptyState Variant="warning" Title="Registration Closed">
+        <p>New user registration is currently disabled on this server.</p>
+        <a href="/login" class="btn btn-primary">Go to Login</a>
+    </EmptyState>
+} else {
+    <div class="d-flex flex-column mx-sm-auto mx-3">
+        @if (!string.IsNullOrEmpty(_error)) {
+            <div class="m-2 p-1 border-danger border-2 rounded-3 bg-danger-subtle">
+                <div class="text-danger-emphasis m-2">@_error</div>
+            </div>
+        }
+        <form class="d-flex flex-column align-items-center">
+            <input type="text" class="form-control my-1" placeholder="Username" required="required" id="username"
+                   @bind="_username" @bind:event="oninput"/>
+            <input type="email" class="form-control my-1" placeholder="Email" required="required" id="email"
+                   @bind="_email" @bind:event="oninput"/>
 
-        <PasswordField @ref="_passwordField"
-                       @bind-Password="_password"
-                       @bind-ConfirmPassword="_confirmPassword" />
+            <PasswordField @ref="_passwordField"
+                           @bind-Password="_password"
+                           @bind-ConfirmPassword="_confirmPassword" />
 
-        <div class="d-flex flex-row justify-content-around w-100 mt-2">
-            <button class="btn btn-primary m-2" type="button" id="register-button"
-                    disabled="@(!CanSubmit)" @onclick="Register_OnClick">Register</button>
-            <button class="btn btn-primary m-2" type="button" id="login-button"
-                    @onclick="Login_OnClick">Login</button>
-        </div>
-    </form>
-</div>
+            <div class="d-flex flex-row justify-content-around w-100 mt-2">
+                <button class="btn btn-primary m-2" type="button" id="register-button"
+                        disabled="@(!CanSubmit)" @onclick="Register_OnClick">Register</button>
+                <button class="btn btn-primary m-2" type="button" id="login-button"
+                        @onclick="Login_OnClick">Login</button>
+            </div>
+        </form>
+    </div>
+}
 
 @code {
     PasswordField? _passwordField;
@@ -37,18 +47,29 @@
     string _password        = string.Empty;
     string _confirmPassword = string.Empty;
     string _error           = string.Empty;
+    bool   _checkingStatus  = true;
+    bool   _registrationDisabled;
 
     bool CanSubmit => _passwordField?.IsValid == true
                    && !string.IsNullOrWhiteSpace(_username)
                    && !string.IsNullOrWhiteSpace(_email);
 
+    protected override async Task OnInitializedAsync() {
+        _registrationDisabled = !await loginService.IsRegistrationEnabledAsync();
+        _checkingStatus = false;
+    }
+
     void Login_OnClick() => navigation.NavigateTo("login");
 
     async Task Register_OnClick() {
         _error = string.Empty;
-        var ok = await loginService.Register(_username, _email, _password);
-        if (ok) {
+        var status = await loginService.Register(_username, _email, _password);
+        if (status == HttpStatusCode.OK) {
             navigation.NavigateTo("login");
+        } else if (status == HttpStatusCode.Forbidden) {
+            _error = "Registration is currently disabled.";
+        } else if (status == HttpStatusCode.Conflict) {
+            _error = "Username or email already taken.";
         } else {
             _error = "Registration failed. Please try again.";
         }

MilkStream.Client/Services/LoginService.cs

@@ -1,3 +1,4 @@
+using System.Net;
 using Blazored.LocalStorage;
 using Butter.Dtos;
 using Butter.Dtos.User;
@@ -265,8 +266,8 @@ public sealed class LoginService : ServiceBase {
     /// <param name="username">The desired username.</param>
     /// <param name="email">The email address.</param>
     /// <param name="password">The password.</param>
-    /// <returns>True if registration succeeded.</returns>
-    public async Task<bool> Register(string username, string email, string password) {
+    /// <returns>HttpStatusCode indicating the result (200 = success, 403 = disabled, 409 = conflict).</returns>
+    public async Task<HttpStatusCode> Register(string username, string email, string password) {
         logger.LogInformation("Attempting to register user with username: {Username}", username);
 
         var registerDto = new UserRegisterDto() {
@@ -277,7 +278,7 @@ public sealed class LoginService : ServiceBase {
 
         var response = await Client.PostAsJsonAsync("api/auth/register", registerDto);
         logger.LogInformation("Result: {ResponseStatusCode}", response.StatusCode);
-        return response.IsSuccessStatusCode;
+        return response.StatusCode;
     }
 
     /// <summary>
@@ -321,5 +322,18 @@ public sealed class LoginService : ServiceBase {
         }
     }
 
+    /// <summary>
+    /// Checks whether user registration is currently enabled on the server.
+    /// </summary>
+    /// <returns>True if registration is allowed.</returns>
+    public async Task<bool> IsRegistrationEnabledAsync() {
+        try {
+            var response = await Client.GetAsync("api/auth/register");
+            return response.StatusCode == HttpStatusCode.OK;
+        } catch {
+            return false;
+        }
+    }
+
 #endregion
 }

MilkStream.Client/Styles/_custom.scss

@@ -329,12 +329,13 @@ $btn-theme-colors: (
 }
 
 // ── Inter font overrides ──
-html, body {
+html {
+  overflow-y: scroll;
   font-family: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
-  min-height: 100dvh;
 }
-
 body {
+  font-family: inherit;
+  min-height: 100dvh;
   display: flex;
   flex-direction: column;
   background: radial-gradient(ellipse at 50% 0%,

MilkStream.Client/wwwroot/js/profileCropper.js

@@ -206,7 +206,7 @@ window.profileCropper = {
         s.square.style.height = sidePx + 'px';
 
         // Handles at square corners
-        var hs = 14;
+        var hs = 18;
         var corners = [
             { left: -hs / 2, top: -hs / 2 },
             { left: sidePx - hs / 2, top: -hs / 2 },