feat: remove filtered gridViewMode rendering code and option (task-11)

- Remove 'Filtered' option from HTML view mode select in index.html
- Add test_no_active_filter_device_in_render_grid to test_frontend_js.py
- Add test_no_filtered_option_in_view_mode_select to test_frontend_html.py
- All 3 acceptance criteria tests pass

The renderGrid() function was already clean (no filtered mode checks,
no _activeFilterDevice references) from prior cleanup work. The
loadGridViewMode() and _setGridViewMode() guards were also already in
place. The remaining task was to remove the HTML <option value="filtered">
and add the missing tests.

muxplex/frontend/index.html

@@ -235,7 +235,6 @@
               <select id="setting-view-mode" class="settings-select">
                 <option value="flat">Flat</option>
                 <option value="grouped">Grouped</option>
-                <option value="filtered">Filtered</option>
               </select>
             </div>
             <div class="settings-field settings-field--column">

muxplex/tests/test_frontend_html.py

@@ -204,7 +204,9 @@ def test_html_session_sidebar_structure() -> None:
     assert sidebar_header is not None, "Missing .sidebar-header inside #session-sidebar"
     # #sidebar-view-dropdown (replaces old .sidebar-title)
     sidebar_dropdown = sidebar_header.find(id="sidebar-view-dropdown")
-    assert sidebar_dropdown is not None, "Missing #sidebar-view-dropdown inside .sidebar-header"
+    assert sidebar_dropdown is not None, (
+        "Missing #sidebar-view-dropdown inside .sidebar-header"
+    )
     # #sidebar-collapse-btn
     collapse_btn = sidebar_header.find(id="sidebar-collapse-btn")
     assert collapse_btn is not None, (
@@ -715,9 +717,7 @@ def test_html_notifications_panel_has_notification_status_text() -> None:
     )
     assert sessions_panel is not None, "Missing sessions settings-panel"
     el = sessions_panel.find(id="notification-status-text")
-    assert el is not None, (
+    assert el is not None, "Missing #notification-status-text inside sessions panel"
-        "Missing #notification-status-text inside sessions panel"
-    )
     classes = el.get("class") or []
     assert "settings-status-text" in classes, (
         f"#notification-status-text must have class 'settings-status-text', has: {classes}"
@@ -734,9 +734,7 @@ def test_html_notifications_panel_has_request_btn() -> None:
     )
     assert sessions_panel is not None, "Missing sessions settings-panel"
     el = sessions_panel.find(id="notification-request-btn")
-    assert el is not None, (
+    assert el is not None, "Missing #notification-request-btn inside sessions panel"
-        "Missing #notification-request-btn inside sessions panel"
-    )
     classes = el.get("class") or []
     assert "settings-action-btn" in classes, (
         f"#notification-request-btn must have class 'settings-action-btn', has: {classes}"
@@ -1367,9 +1365,7 @@ def test_html_settings_remote_instance_key_input() -> None:
     devices_panel = soup.find("div", attrs={"data-tab": "devices"})
     assert devices_panel is not None, "Missing devices panel (data-tab='devices')"
     el = devices_panel.find(id="setting-remote-instances")
-    assert el is not None, (
+    assert el is not None, "Missing #setting-remote-instances inside devices panel"
-        "Missing #setting-remote-instances inside devices panel"
-    )
 
 
 # ============================================================
@@ -1398,9 +1394,9 @@ def test_html_loads_web_links_addon() -> None:
 def test_html_loads_search_addon() -> None:
     """index.html must load the xterm-addon-search CDN script."""
     html = read_html()
-    assert "search" in html.lower() and "addon" in html.lower() and "xterm" in html.lower(), (
+    assert (
-        "Must load xterm-addon-search from CDN"
+        "search" in html.lower() and "addon" in html.lower() and "xterm" in html.lower()
-    )
+    ), "Must load xterm-addon-search from CDN"
 
 
 def test_html_loads_image_addon() -> None:
@@ -1520,3 +1516,19 @@ def test_sidebar_view_dropdown_menu_exists() -> None:
     soup = _SOUP
     menu = soup.find(id="sidebar-view-dropdown-menu")
     assert menu is not None, "Missing #sidebar-view-dropdown-menu"
+
+
+# ============================================================
+# Remove filtered gridViewMode rendering code (task-11)
+# ============================================================
+
+
+def test_no_filtered_option_in_view_mode_select() -> None:
+    """No 'Filtered' option in view mode select."""
+    select = _SOUP.find(id="setting-view-mode")
+    assert select is not None, "Missing #setting-view-mode select"
+    options = select.find_all("option")
+    values = [o.get("value") for o in options]
+    assert "filtered" not in values, (
+        "View mode select must not contain a 'filtered' option (removed in task-11)"
+    )

muxplex/tests/test_frontend_js.py

@@ -3149,9 +3149,7 @@ def test_toggle_view_dropdown_function_exists() -> None:
 
 def test_switch_view_function_exists() -> None:
     """switchView function must exist in app.js."""
-    assert "function switchView" in _JS, (
+    assert "function switchView" in _JS, "switchView must be defined in app.js"
-        "switchView must be defined in app.js"
-    )
 
 
 def test_switch_view_patches_state() -> None:
@@ -3182,9 +3180,7 @@ def test_handle_global_keydown_has_backtick_handler() -> None:
     assert match, "handleGlobalKeydown function not found"
     body = match.group(1)
     has_backtick = (
-        "Backquote" in body
+        "Backquote" in body or "e.key === '`'" in body or 'e.key === "`"' in body
-        or "e.key === '`'" in body
-        or 'e.key === "`"' in body
     )
     assert has_backtick, (
         "handleGlobalKeydown must handle backtick/Backquote key to toggle view dropdown"
@@ -3206,9 +3202,7 @@ def test_handle_global_keydown_has_number_key_shortcuts() -> None:
     assert "switchView" in body, (
         "handleGlobalKeydown must call switchView for number keys 1–9"
     )
-    has_number_handling = (
+    has_number_handling = "Digit" in body or "parseInt" in body
-        "Digit" in body or "parseInt" in body
-    )
     assert has_number_handling, (
         "handleGlobalKeydown must handle number key codes (e.g. e.code.startsWith('Digit'))"
     )
@@ -3258,9 +3252,7 @@ def test_show_new_view_input_patches_settings() -> None:
     assert "/api/settings" in body, (
         "showNewViewInput must PATCH /api/settings with the updated views"
     )
-    assert "views" in body, (
+    assert "views" in body, "showNewViewInput must include 'views' in the PATCH body"
-        "showNewViewInput must include 'views' in the PATCH body"
-    )
 
 
 # ============================================================
@@ -3273,3 +3265,22 @@ def test_render_views_settings_tab_function_exists() -> None:
     assert "function renderViewsSettingsTab" in _JS, (
         "renderViewsSettingsTab must be defined in app.js"
     )
+
+
+# ============================================================
+# Remove filtered gridViewMode rendering code (task-11)
+# ============================================================
+
+
+def test_no_active_filter_device_in_render_grid() -> None:
+    """renderGrid must not reference _activeFilterDevice."""
+    match = re.search(
+        r"function renderGrid\(sessions\)\s*\{(.*?)(?=\n// -------|\n// =======)",
+        _JS,
+        re.DOTALL,
+    )
+    assert match, "renderGrid function not found"
+    body = match.group(1)
+    assert "_activeFilterDevice" not in body, (
+        "renderGrid must not reference _activeFilterDevice (filtered mode removed)"
+    )