🎨 Palette: 개선된 파일 업로드 UI 프록시 도입

.jules/palette.md

@@ -81,3 +81,7 @@
 ## 2026-08-12 - Skip to Content Accessibility
 **Learning:** Screen reader and keyboard-only users experience significant friction when forced to navigate through repetitive header controls on every page load.
 **Action:** Keep a visible-on-focus skip link as the first interactive element, target a programmatically focusable main container, and give the focused link a high-contrast outline.
+
+## 2024-10-04 - 네이티브 파일 입력(Input File) 요소를 접근성 높은 프록시 버튼으로 대체
+**Learning:** `aria-hidden="true"`는 파일 입력 요소를 접근성 트리에서 제거(explicitly removes from the Accessibility Object Model)하며, 시각적으로 숨기기 위해 `class="sr-only" tabindex="-1"`을 함께 사용하여야 스크린 리더와 키보드 접근성을 유지하면서 커스텀 버튼 디자인을 노출시킬 수 있다는 사실을 확인했습니다.
+**Action:** 향후 파일 업로드 UI를 개선할 때는 인라인 `onclick` 대신 명시적인 자바스크립트 이벤트 리스너를 바인딩하고 접근성 속성을 올바르게 적용합니다.

scanner/dashboard/index.html

@@ -93,7 +93,8 @@
   <span class="logo"></span><span class="brand">AppGuardrail</span>
   <span class="spacer"></span>
   <span class="meta" id="src">no findings loaded</span>
-  <input type="file" id="file" accept="application/json,.json" aria-label="Upload findings file" style="margin-left:12px">
+  <button type="button" id="header-browse-findings" class="primary-action">Upload findings</button>
+  <input type="file" id="file" class="sr-only" tabindex="-1" aria-hidden="true" accept="application/json,.json">
 </header>
 <p id="findings-summary" class="sr-only" role="status" aria-live="polite" aria-atomic="true"></p>
 <main id="app" tabindex="-1"></main>
@@ -388,6 +389,15 @@ <h1>Dashboard</h1>
     if(isDeployBlocking(f)!==expect) console.error('selftest FAIL', f, 'expected', expect);
   }
 })();
+
+(function() {
+  const headerBrowseFindings = document.getElementById('header-browse-findings');
+  const fileInput = document.getElementById('file');
+  if (headerBrowseFindings && fileInput) {
+    headerBrowseFindings.addEventListener('click', () => fileInput.click());
+  }
+})();
+
 </script>
 </body>
 </html>

tests/test_dashboard_core.py

@@ -77,7 +77,6 @@ def test_dashboard_rows_are_keyboard_accessible():
     assert 'tabindex="0" role="button"' in html
     assert 'title="View details for finding"' in html
     assert "tbody tr:focus-visible" in html
-    assert "aria-label=\"Upload findings file\"" in html
     assert "aria-label=\"Search findings\"" in html
     assert "aria-label=\"Filter by severity\"" in html
     assert "tr.addEventListener('keydown'" in html
@@ -302,3 +301,14 @@ def test_dashboard_search_escape_clears_input():
     assert "e.key === 'Escape'" in html
     assert "query = '';" in html
     assert "render();" in html
+
+def test_file_upload_proxy_accessibility_contract():
+    html = dashboard_index_path().read_text(encoding="utf-8")
+    assert 'class="sr-only"' in html and 'tabindex="-1"' in html and 'aria-hidden="true"' in html, "Hidden file input missing exact accessibility hiding attributes"
+    assert "headerBrowseFindings.addEventListener('click', () => fileInput.click())" in html, "Missing exact event listener wiring"
+
+def test_file_upload_proxy_accessibility_contract_is_documented_accurately():
+    path = dashboard_index_path().parent.parent.parent / ".jules" / "palette.md"
+    assert path.exists(), "Journal missing"
+    content = path.read_text(encoding="utf-8")
+    assert '`aria-hidden="true"`는 파일 입력 요소를 접근성 트리에서 제거' in content, "Missing exact documentation statement"