feat: rebuild site content management

Replace legacy FAQ, downloads, and release flows with project and blog publishing. Add configurable branding and theme fields plus clean-start Compose seeding support.

apps/products/urls.py

@@ -6,11 +6,6 @@ app_name = "products"
 
 urlpatterns = [
     path("", views.ProductOverviewView.as_view(), name="overview"),
-    path(
-        "releases/<int:version_id>/<slug:asset>/download/",
-        views.ReleaseAssetDownloadView.as_view(),
-        name="release_asset_download",
-    ),
     path(
         "<slug:main_slug>/videos/",
         views.ProductVideoArchiveView.as_view(),
@@ -26,16 +21,6 @@ urlpatterns = [
         views.MainProductDetailView.as_view(),
         name="main_product_detail",
     ),
-    path(
-        "<slug:main_slug>/versions/",
-        views.MainProductOlderVersionsView.as_view(),
-        name="main_product_versions",
-    ),
-    path(
-        "<slug:main_slug>/<slug:sub_slug>/versions/",
-        views.SubProductOlderVersionsView.as_view(),
-        name="sub_product_versions",
-    ),
     path(
         "<slug:main_slug>/<slug:sub_slug>/",
         views.SubProductDetailView.as_view(),