Fix blog publish checkbox binding

src/TaxBaik.Web/Pages/Shared/_BlogEditor.cshtml

@@ -61,8 +61,8 @@
                         </div>
                         <div class="col-md-4">
                             <label class="form-label d-block" for="Input_IsPublished">발행 여부</label>
-                            <input type="hidden" name="Input.IsPublished" value="false" />
-                            <input class="form-check-input" id="Input_IsPublished" name="Input.IsPublished" type="checkbox" value="true" @(Model.IsPublished ? "checked" : null) />
+                            <input type="hidden" name="Input.IsPublished" value="@(Model.IsPublished ? "true" : "false")" data-blog-published-value />
+                            <input class="form-check-input" id="Input_IsPublished" type="checkbox" value="true" @(Model.IsPublished ? "checked" : null) data-blog-published-toggle />
                         </div>
                         <div class="col-md-4">
                             <label class="form-label" for="Input_ThumbnailUrl">썸네일 URL</label>

src/TaxBaik.Web/wwwroot/js/admin-blog-editor.js

@@ -7,6 +7,9 @@
     function setupEditor(root) {
         const editor = root.querySelector('[data-blog-editor]');
         const hiddenInput = root.querySelector('[data-blog-editor-value]');
+        const publishedToggle = root.querySelector('[data-blog-published-toggle]');
+        const publishedValue = root.querySelector('[data-blog-published-value]');
+        const form = root.querySelector('form');
         const preview = root.querySelector('[data-blog-preview]');
         const buttons = root.querySelectorAll('[data-blog-command]');
 
@@ -32,6 +35,21 @@
             });
         });
 
+        const syncPublishedState = () => {
+            if (publishedValue && publishedToggle) {
+                publishedValue.value = publishedToggle.checked ? 'true' : 'false';
+            }
+        };
+
+        if (publishedToggle) {
+            publishedToggle.addEventListener('change', syncPublishedState);
+            syncPublishedState();
+        }
+
+        if (form) {
+            form.addEventListener('submit', syncPublishedState);
+        }
+
         syncEditor(editor, hiddenInput);
         renderPreview();
     }