feat(help-center): expose public category lists

internal/router/router.go

@@ -285,6 +285,9 @@ func RegisterRoutes(
 	{
 		helpCenter.GET("/:slug/:locale/articles", handlers.Article.PublicList)
 		helpCenter.GET("/:slug/:locale/articles.json", handlers.Article.PublicList)
+		helpCenter.GET("/:slug/:locale/categories", handlers.Category.PublicList)
+		helpCenter.GET("/:slug/:locale/categories.json", handlers.Category.PublicList)
+		helpCenter.GET("/:slug/:locale/categories/:category_slug", handlers.Category.PublicGet)
 		helpCenter.GET("/:slug/:locale/categories/:category_slug/articles", handlers.Article.PublicList)
 		helpCenter.GET("/:slug/:locale/categories/:category_slug/articles.json", handlers.Article.PublicList)
 	}

internal/router/router_test.go

@@ -37,6 +37,8 @@ func TestRegisterRoutesBootsWithChatwootParityConflictGroups(t *testing.T) {
 		"GET /api/v1/widget/conversations/toggle_status",
 		"PUT /public/api/v1/inboxes/:inbox_id/contacts/:contact_id/conversations/:conversation_id/messages/:message_id",
 		"GET /hc/:slug/:locale/articles.json",
+		"GET /hc/:slug/:locale/categories.json",
+		"GET /hc/:slug/:locale/categories/:category_slug",
 		"GET /api/v2/accounts/:account_id/reports/summary",
 		"GET /api/v2/accounts/:account_id/live_reports/grouped_conversation_metrics",
 		"GET /webhooks/twitter",