feat & Bugfix: layout en rename (year)

feature_tests_ui.sh

@@ -26,10 +26,10 @@ from pathlib import Path
 
 html = Path(sys.argv[1]).read_text(encoding="utf-8")
 required = [
-    "Panel 1: TVDB Search",
-    "Panel 2: Episodes",
-    "Panel 3: Selected Episodes",
-    "Panel 4: Selected Files + File Discovery",
+    "1. TV Shows",
+    "2. Episodes",
+    "3. Selected Episodes",
+    "4. Selected Files",
     "Mapping Preview",
     "Filename Preview",
     "Rename Execute (confirm=true)",
@@ -58,6 +58,7 @@ assert ".grid" in css, "styles.css missing expected grid styles"
 assert "session_id" in js, "app.js missing session_id usage"
 assert "/api/tvdb/search" in js, "app.js missing search endpoint usage"
 assert "/api/files/discover" in js, "app.js missing discovery endpoint usage"
+assert "/api/files/folders" in js, "app.js missing folders endpoint usage"
 print("static assets validation passed")
 PY
 
@@ -74,6 +75,7 @@ required_endpoints = [
     "/api/session/selected-episodes",
     "/api/session/selected-files",
     "/api/files/roots",
+    "/api/files/folders",
     "/api/files/discover",
     "/api/session/mapping-preview",
     "/api/session/filename-preview",