Refactor backend to support interface-definition driven model resources

- Introduce a new model structure for managing interface definitions and model resources, enhancing the backend's capability to handle various service integrations.
- Update the Makefile to reflect changes in database seeding and resource management commands.
- Remove the deprecated credentials management routes and replace them with a unified model registry API.
- Modify existing routes and schemas to align with the new model structure, ensuring seamless integration with the frontend.
- Enhance database seeding scripts to populate new model resources and their configurations.
- Update README documentation to reflect the new architecture and usage instructions for model resources and interface definitions.

frontend/src/components/ui/list-toolbar.tsx

@@ -0,0 +1,26 @@
+import type { ReactNode } from "react";
+
+import { cn } from "@/lib/utils";
+
+export type ListToolbarProps = {
+  /** 左侧筛选区(通常是 FilterPills) */
+  filters?: ReactNode;
+  /** 右侧搜索区(通常是 SearchInput) */
+  search?: ReactNode;
+  className?: string;
+};
+
+/** 列表页工具栏布局:左筛选 / 右搜索,移动端纵向堆叠 */
+export function ListToolbar({ filters, search, className }: ListToolbarProps) {
+  return (
+    <div
+      className={cn(
+        "mb-6 flex flex-col gap-4 lg:flex-row lg:items-center lg:justify-between",
+        className,
+      )}
+    >
+      {filters}
+      {search}
+    </div>
+  );
+}