Add personal notes, DeepSearch history, backup offload, and gateway auth throttling

Also streamline the top navigation: drop the Tools dropdown, make Quizzes
and Battles icon-only entries, and remove the Workspace, Containers and
Editor entry points from the project detail page.

tests/e2e/gists.py

@@ -230,8 +230,8 @@ def test_delete_gist(alice, app_server):
     page, _ = alice
     title = f"Delete Test {int(time.time())}"
     _create_gist(page, title=title, source_code="delete_me = True")
-    page.locator("button:has-text('Delete')").wait_for(state="visible", timeout=5000)
-    page.click("button:has-text('Delete')")
+    page.locator("button[data-confirm='Delete this gist?']").wait_for(state="visible", timeout=5000)
+    page.click("button[data-confirm='Delete this gist?']")
     page.locator(".dialog-overlay.visible .dialog-confirm").click()
     page.wait_for_url(f"{BASE_URL}/gists", timeout=10000, wait_until="domcontentloaded")
 
@@ -275,6 +275,44 @@ def test_gist_code_copy_button(alice, app_server):
     expect(btn).to_have_text("Copied!", timeout=3000)
 
 
+def test_markdown_gist_raw_rendered_toggle(alice, app_server):
+    from playwright.sync_api import expect
+
+    page, _ = alice
+    _create_gist(
+        page,
+        title=f"Markdown Toggle {int(time.time())}",
+        language="markdown",
+        source_code="# Heading\n\nSome **bold** text.",
+    )
+    toggle = page.locator("button[data-view-toggle='gist-view-raw']")
+    raw_view = page.locator("#gist-view-raw")
+    rendered_view = page.locator("#gist-view-rendered")
+    expect(toggle).to_have_text("View rendered")
+    expect(raw_view).to_be_visible()
+    expect(rendered_view).to_be_hidden()
+    toggle.click()
+    expect(toggle).to_have_text("View raw")
+    expect(rendered_view).to_be_visible()
+    expect(raw_view).to_be_hidden()
+    assert page.locator("#gist-view-rendered h1:has-text('Heading')").count() == 1
+    toggle.click()
+    expect(toggle).to_have_text("View rendered")
+    expect(raw_view).to_be_visible()
+    expect(rendered_view).to_be_hidden()
+
+
+def test_markdown_rendered_gist_has_no_toggle(alice, app_server):
+    page, _ = alice
+    _create_gist(
+        page,
+        title=f"No Toggle {int(time.time())}",
+        language="markdown_rendered",
+        source_code="# Already rendered",
+    )
+    assert page.locator("button[data-view-toggle]").count() == 0
+
+
 def test_language_filter(alice, app_server):
     page, _ = alice
     title = f"Lang Filter Test {int(time.time())}"