style(overlays): redesign create-overlay modal

Reorders fields to Name → Type → System-wide. Drops the legacy fieldset
border and the now-stale "path is generated automatically" hint. Type
radios use the new .radio-row vocabulary with always-visible
descriptions; the admin-only system-wide checkbox becomes a .switch-row
toggle. Form field names are unchanged, so the overlay-creation handler
is untouched.

Plan deviation: live_server e2e fixture now also sets LEFT4ME_ROOT.
This is required because the new test creates an overlay end-to-end via
the UI, and create_overlay_directory() writes under $LEFT4ME_ROOT,
which defaults to /var/lib/left4me (unwritable on dev machines).
The two existing live_server consumers (test_editor, test_smoke) only
visit /blueprints/<id> routes that don't touch the filesystem, so this
change is safe for them.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

l4d2web/l4d2web/templates/overlays.html

@@ -34,17 +34,48 @@
     </div>
     <div class="modal-body">
       <input type="hidden" name="csrf_token" value="{{ session.get('csrf_token', '') }}">
-      <fieldset class="overlay-type-radio">
+
-        <legend>Type</legend>
+      <div class="field">
-        <label><input type="radio" name="type" value="workshop" checked> Workshop (downloads from Steam)</label>
+        <label class="field-label" for="create-overlay-name">Name</label>
-        <label><input type="radio" name="type" value="script"> Script (runs sandboxed bash)</label>
+        <input id="create-overlay-name" name="name" required>
-        <label><input type="radio" name="type" value="files"> Files (upload / edit text files online)</label>
+      </div>
-      </fieldset>
+
-      <label>Name <input name="name" required></label>
+      <div class="field">
+        <span class="field-label">Type</span>
+        <div class="radio-list">
+          <label class="radio-row">
+            <input type="radio" name="type" value="workshop" checked>
+            <span class="radio-row-text">
+              <strong>Workshop</strong>
+              <span>Downloads from Steam</span>
+            </span>
+          </label>
+          <label class="radio-row">
+            <input type="radio" name="type" value="script">
+            <span class="radio-row-text">
+              <strong>Script</strong>
+              <span>Runs sandboxed bash</span>
+            </span>
+          </label>
+          <label class="radio-row">
+            <input type="radio" name="type" value="files">
+            <span class="radio-row-text">
+              <strong>Files</strong>
+              <span>Upload / edit text files online</span>
+            </span>
+          </label>
+        </div>
+      </div>
+
       {% if g.user and g.user.admin %}
-      <label><input type="checkbox" name="system_wide" value="1"> System-wide (visible to all users)</label>
+      <label class="switch-row">
+        <input type="checkbox" name="system_wide" value="1">
+        <span class="switch-row-text">
+          <strong>System-wide</strong>
+          <span>Visible to all users</span>
+        </span>
+      </label>
       {% endif %}
-      <p class="muted">The path is generated automatically.</p>
     </div>
     <div class="modal-footer">
       <button type="button" class="button-secondary" data-inline-modal-close>Cancel</button>

l4d2web/tests/e2e/conftest.py

@@ -77,6 +77,10 @@ def login(page, base_url: str, username: str = "alice", password: str = "secret"
 
 @pytest.fixture(scope="function")
 def live_server(tmp_path, monkeypatch):
+    # Some routes (e.g. POST /overlays via create_overlay_directory) write
+    # under $LEFT4ME_ROOT. Point it at tmp_path so the prod default
+    # /var/lib/left4me doesn't kick in on dev machines.
+    monkeypatch.setenv("LEFT4ME_ROOT", str(tmp_path))
     app = _boot_app(tmp_path, monkeypatch)
 
     with session_scope() as session:

l4d2web/tests/e2e/test_overlays_create.py

@@ -0,0 +1,47 @@
+"""E2E test for the redesigned create-overlay modal."""
+from __future__ import annotations
+
+import pytest
+from playwright.sync_api import Page, expect
+
+from .conftest import login
+
+pytestmark = pytest.mark.e2e
+
+
+def test_create_overlay_modal_field_order_and_submission(page: Page, live_server) -> None:
+    base_url = live_server["base_url"]
+    login(page, base_url)
+    page.goto(f"{base_url}/overlays")
+    page.click('button[data-inline-modal-open="create-overlay-modal"]')
+
+    modal = page.locator("#create-overlay-modal")
+    expect(modal).to_be_visible()
+
+    # Field order: Name input must appear before Type radios in DOM/visual order.
+    name_input = modal.locator('input[name="name"]')
+    type_workshop = modal.locator('input[name="type"][value="workshop"]')
+    expect(name_input).to_be_visible()
+    expect(type_workshop).to_be_visible()
+    name_box = name_input.bounding_box()
+    type_box = type_workshop.bounding_box()
+    assert name_box is not None and type_box is not None
+    assert name_box["y"] < type_box["y"], "Name should sit above Type"
+
+    # No legacy fieldset border around Type group.
+    expect(modal.locator("fieldset.overlay-type-radio")).to_have_count(0)
+
+    # No legacy "path is generated automatically" copy anywhere.
+    expect(modal).not_to_contain_text("path is generated automatically")
+
+    # Default workshop selection is checked.
+    expect(type_workshop).to_be_checked()
+
+    # Submit with a unique name and the script type.
+    name_input.fill("e2e-test-overlay")
+    modal.locator('input[name="type"][value="script"]').check()
+    modal.locator('button[type="submit"]:has-text("Create")').click()
+
+    # Handler redirects to /overlays/<id> on success.
+    page.wait_for_url("**/overlays/*", timeout=5000)
+    expect(page.locator("h1")).to_contain_text("e2e-test-overlay")