feat(ui): another small batch to shadcn

- Navbar/CommunityEngagementButtons: antd Button + @ant-design icons
  \u2192 shadcn Button asChild + lucide Slack/Github. Indigo shadow
  preserved.
- playground/{Chat,Responses}ImageUpload: antd Upload.Dragger + antd
  Tooltip + @ant-design PaperClipOutlined \u2192 hidden <input type=file>
  + shadcn Tooltip + lucide Paperclip. Keeps beforeUpload contract.
- playground/FilePreviewCard: @ant-design DeleteOutlined/FilePdfOutlined
  \u2192 lucide Trash2/FileText; semantic tokens throughout.
- router_settings/TagFilteringToggle + RoutingStrategySelector: antd
  Switch/Select \u2192 shadcn Switch/Select. onChange \u2192 onValueChange /
  onCheckedChange. Strategy option now renders a two-line label via
  flex-col inside the SelectItem.

Gates: TS \u2713 | Build \u2713.

Co-authored-by: yuneng-jiang <yuneng-berri@users.noreply.github.com>

ui/litellm-dashboard/src/components/Navbar/CommunityEngagementButtons/CommunityEngagementButtons.tsx

@@ -1,12 +1,11 @@
 import { useDisableShowPrompts } from "@/app/(dashboard)/hooks/useDisableShowPrompts";
-import { GithubOutlined, SlackOutlined } from "@ant-design/icons";
-import { Button } from "antd";
+import { Button } from "@/components/ui/button";
+import { Github, Slack } from "lucide-react";
 import React from "react";
 
 export const CommunityEngagementButtons: React.FC = () => {
   const disableShowPrompts = useDisableShowPrompts();
 
-  // Hide buttons if prompts are disabled
   if (disableShowPrompts) {
     return null;
   }
@@ -14,22 +13,32 @@ export const CommunityEngagementButtons: React.FC = () => {
   return (
     <>
       <Button
-        href="https://www.litellm.ai/support"
-        target="_blank"
-        rel="noopener noreferrer"
-        icon={<SlackOutlined />}
+        asChild
+        variant="outline"
         className="shadow-md shadow-indigo-500/20 hover:shadow-indigo-500/50 transition-shadow"
       >
-        Join Slack
+        <a
+          href="https://www.litellm.ai/support"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <Slack className="h-4 w-4" />
+          Join Slack
+        </a>
       </Button>
       <Button
-        href="https://github.com/BerriAI/litellm"
-        target="_blank"
-        rel="noopener noreferrer"
+        asChild
+        variant="outline"
         className="shadow-md shadow-indigo-500/20 hover:shadow-indigo-500/50 transition-shadow"
-        icon={<GithubOutlined />}
       >
-        Star us on GitHub
+        <a
+          href="https://github.com/BerriAI/litellm"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <Github className="h-4 w-4" />
+          Star us on GitHub
+        </a>
       </Button>
     </>
   );

ui/litellm-dashboard/src/components/playground/chat_ui/ChatImageUpload.tsx

@@ -1,43 +1,61 @@
-import React from "react";
-import { Upload, Tooltip } from "antd";
-import { PaperClipOutlined } from "@ant-design/icons";
-
-const { Dragger } = Upload;
+import React, { useRef } from "react";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipProvider,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+import { Paperclip } from "lucide-react";
 
 interface ChatImageUploadProps {
   chatUploadedImage: File | null;
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
   chatImagePreviewUrl: string | null;
   onImageUpload: (file: File) => false;
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
   onRemoveImage: () => void;
 }
 
+/**
+ * Thin hidden-file-input wrapper around the old Ant Design Dragger. The
+ * previous implementation used antd Upload's `beforeUpload` hook which
+ * returns `false` to intercept the file \u2014 we preserve that contract.
+ */
 const ChatImageUpload: React.FC<ChatImageUploadProps> = ({
   chatUploadedImage,
-  chatImagePreviewUrl,
   onImageUpload,
-  onRemoveImage,
 }) => {
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  if (chatUploadedImage) return null;
+
   return (
     <>
-      {/* Subtle upload button - only show when no image */}
-      {!chatUploadedImage && (
-        <Dragger
-          beforeUpload={onImageUpload}
-          accept="image/*,.pdf"
-          showUploadList={false}
-          className="inline-block"
-          style={{ padding: 0, border: "none", background: "none" }}
-        >
-          <Tooltip title="Attach image or PDF">
+      <input
+        ref={inputRef}
+        type="file"
+        accept="image/*,.pdf"
+        className="hidden"
+        onChange={(e) => {
+          const file = e.target.files?.[0];
+          if (file) onImageUpload(file);
+          e.target.value = "";
+        }}
+      />
+      <TooltipProvider>
+        <Tooltip>
+          <TooltipTrigger asChild>
             <button
               type="button"
-              className="flex items-center justify-center w-8 h-8 text-gray-400 hover:text-gray-600 hover:bg-gray-100 rounded-md transition-colors"
+              onClick={() => inputRef.current?.click()}
+              className="flex items-center justify-center w-8 h-8 text-muted-foreground hover:text-foreground hover:bg-muted rounded-md transition-colors"
             >
-              <PaperClipOutlined style={{ fontSize: "16px" }} />
+              <Paperclip className="h-4 w-4" />
             </button>
-          </Tooltip>
-        </Dragger>
-      )}
+          </TooltipTrigger>
+          <TooltipContent>Attach image or PDF</TooltipContent>
+        </Tooltip>
+      </TooltipProvider>
     </>
   );
 };

ui/litellm-dashboard/src/components/playground/chat_ui/FilePreviewCard.tsx

@@ -1,4 +1,4 @@
-import { DeleteOutlined, FilePdfOutlined } from "@ant-design/icons";
+import { FileText, Trash2 } from "lucide-react";
 
 interface FilePreviewCardProps {
   file: File;
@@ -11,31 +11,36 @@ function FilePreviewCard({ file, previewUrl, onRemove }: FilePreviewCardProps) {
 
   return (
     <div className="mb-2">
-      <div className="flex items-center gap-3 p-3 bg-gray-50 rounded-lg border border-gray-200">
+      <div className="flex items-center gap-3 p-3 bg-muted rounded-lg border border-border">
         <div className="relative inline-block">
           {isPdf ? (
-            <div className="w-10 h-10 rounded-md bg-red-500 flex items-center justify-center">
-              <FilePdfOutlined style={{ fontSize: "16px", color: "white" }} />
+            <div className="w-10 h-10 rounded-md bg-destructive flex items-center justify-center">
+              <FileText className="h-4 w-4 text-destructive-foreground" />
             </div>
           ) : (
+            // eslint-disable-next-line @next/next/no-img-element
             <img
               src={previewUrl || ""}
               alt="Upload preview"
-              className="w-10 h-10 rounded-md border border-gray-200 object-cover"
+              className="w-10 h-10 rounded-md border border-border object-cover"
             />
           )}
         </div>
         <div className="flex-1 min-w-0">
-          <div className="text-sm font-medium text-gray-900 truncate">{file.name}</div>
-          <div className="text-xs text-gray-500">
+          <div className="text-sm font-medium text-foreground truncate">
+            {file.name}
+          </div>
+          <div className="text-xs text-muted-foreground">
             {isPdf ? "PDF" : "Image"}
           </div>
         </div>
         <button
-          className="flex items-center justify-center w-6 h-6 text-gray-400 hover:text-gray-600 hover:bg-gray-200 rounded-full transition-colors"
+          type="button"
+          className="flex items-center justify-center w-6 h-6 text-muted-foreground hover:text-foreground hover:bg-accent rounded-full transition-colors"
           onClick={onRemove}
+          aria-label="Remove attachment"
         >
-          <DeleteOutlined style={{ fontSize: "12px" }} />
+          <Trash2 className="h-3 w-3" />
         </button>
       </div>
     </div>

ui/litellm-dashboard/src/components/playground/chat_ui/ResponsesImageUpload.tsx

@@ -1,43 +1,56 @@
-import React from "react";
-import { Upload, Tooltip } from "antd";
-import { PaperClipOutlined } from "@ant-design/icons";
-
-const { Dragger } = Upload;
+import React, { useRef } from "react";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipProvider,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+import { Paperclip } from "lucide-react";
 
 interface ResponsesImageUploadProps {
   responsesUploadedImage: File | null;
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
   responsesImagePreviewUrl: string | null;
   onImageUpload: (file: File) => false;
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
   onRemoveImage: () => void;
 }
 
 const ResponsesImageUpload: React.FC<ResponsesImageUploadProps> = ({
   responsesUploadedImage,
-  responsesImagePreviewUrl,
   onImageUpload,
-  onRemoveImage,
 }) => {
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  if (responsesUploadedImage) return null;
+
   return (
     <>
-      {/* Subtle upload button - only show when no image */}
-      {!responsesUploadedImage && (
-        <Dragger
-          beforeUpload={onImageUpload}
-          accept="image/*,.pdf"
-          showUploadList={false}
-          className="inline-block"
-          style={{ padding: 0, border: "none", background: "none" }}
-        >
-          <Tooltip title="Attach image or PDF">
+      <input
+        ref={inputRef}
+        type="file"
+        accept="image/*,.pdf"
+        className="hidden"
+        onChange={(e) => {
+          const file = e.target.files?.[0];
+          if (file) onImageUpload(file);
+          e.target.value = "";
+        }}
+      />
+      <TooltipProvider>
+        <Tooltip>
+          <TooltipTrigger asChild>
             <button
               type="button"
-              className="flex items-center justify-center w-8 h-8 text-gray-400 hover:text-gray-600 hover:bg-gray-100 rounded-md transition-colors"
+              onClick={() => inputRef.current?.click()}
+              className="flex items-center justify-center w-8 h-8 text-muted-foreground hover:text-foreground hover:bg-muted rounded-md transition-colors"
             >
-              <PaperClipOutlined style={{ fontSize: "16px" }} />
+              <Paperclip className="h-4 w-4" />
             </button>
-          </Tooltip>
-        </Dragger>
-      )}
+          </TooltipTrigger>
+          <TooltipContent>Attach image or PDF</TooltipContent>
+        </Tooltip>
+      </TooltipProvider>
     </>
   );
 };

ui/litellm-dashboard/src/components/router_settings/RoutingStrategySelector.tsx

@@ -1,10 +1,17 @@
 import React from "react";
-import { Select } from "antd";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
 
 interface RoutingStrategySelectorProps {
   selectedStrategy: string | null;
   availableStrategies: string[];
   routingStrategyDescriptions: { [key: string]: string };
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
   routerFieldsMetadata: { [key: string]: any };
   onStrategyChange: (strategy: string) => void;
 }
@@ -19,32 +26,38 @@ const RoutingStrategySelector: React.FC<RoutingStrategySelectorProps> = ({
   return (
     <div className="space-y-2 max-w-3xl">
       <div>
-        <label className="text-xs font-medium text-gray-700 uppercase tracking-wide">
-          {routerFieldsMetadata["routing_strategy"]?.ui_field_name || "Routing Strategy"}
+        <label className="text-xs font-medium text-foreground uppercase tracking-wide">
+          {routerFieldsMetadata["routing_strategy"]?.ui_field_name ||
+            "Routing Strategy"}
         </label>
-        <p className="text-xs text-gray-500 mt-0.5 mb-2">
+        <p className="text-xs text-muted-foreground mt-0.5 mb-2">
           {routerFieldsMetadata["routing_strategy"]?.field_description || ""}
         </p>
       </div>
       <div className="routing-strategy-select max-w-3xl">
         <Select
-          value={selectedStrategy}
-          onChange={onStrategyChange}
-          style={{ width: "100%" }}
-          size="large"
+          value={selectedStrategy ?? undefined}
+          onValueChange={onStrategyChange}
         >
-          {availableStrategies.map((strategy) => (
-            <Select.Option key={strategy} value={strategy} label={strategy}>
-              <div className="flex flex-col gap-0.5 py-1">
-                <span className="font-mono text-sm font-medium">{strategy}</span>
-                {routingStrategyDescriptions[strategy] && (
-                  <span className="text-xs text-gray-500 font-normal">
-                    {routingStrategyDescriptions[strategy]}
+          <SelectTrigger className="w-full h-10">
+            <SelectValue placeholder="Select strategy" />
+          </SelectTrigger>
+          <SelectContent>
+            {availableStrategies.map((strategy) => (
+              <SelectItem key={strategy} value={strategy}>
+                <div className="flex flex-col gap-0.5 py-1">
+                  <span className="font-mono text-sm font-medium">
+                    {strategy}
                   </span>
-                )}
-              </div>
-            </Select.Option>
-          ))}
+                  {routingStrategyDescriptions[strategy] && (
+                    <span className="text-xs text-muted-foreground font-normal">
+                      {routingStrategyDescriptions[strategy]}
+                    </span>
+                  )}
+                </div>
+              </SelectItem>
+            ))}
+          </SelectContent>
         </Select>
       </div>
     </div>
@@ -52,4 +65,3 @@ const RoutingStrategySelector: React.FC<RoutingStrategySelectorProps> = ({
 };
 
 export default RoutingStrategySelector;
-

ui/litellm-dashboard/src/components/router_settings/TagFilteringToggle.tsx

@@ -1,8 +1,9 @@
 import React from "react";
-import { Switch } from "antd";
+import { Switch } from "@/components/ui/switch";
 
 interface TagFilteringToggleProps {
   enabled: boolean;
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
   routerFieldsMetadata: { [key: string]: any };
   onToggle: (enabled: boolean) => void;
 }
@@ -16,11 +17,13 @@ const TagFilteringToggle: React.FC<TagFilteringToggleProps> = ({
     <div className="space-y-3 max-w-3xl">
       <div className="flex items-start justify-between">
         <div className="flex-1">
-          <label className="text-xs font-medium text-gray-700 uppercase tracking-wide">
-            {routerFieldsMetadata["enable_tag_filtering"]?.ui_field_name || "Enable Tag Filtering"}
+          <label className="text-xs font-medium text-foreground uppercase tracking-wide">
+            {routerFieldsMetadata["enable_tag_filtering"]?.ui_field_name ||
+              "Enable Tag Filtering"}
           </label>
-          <p className="text-xs text-gray-500 mt-0.5">
-            {routerFieldsMetadata["enable_tag_filtering"]?.field_description || ""}
+          <p className="text-xs text-muted-foreground mt-0.5">
+            {routerFieldsMetadata["enable_tag_filtering"]?.field_description ||
+              ""}
             {routerFieldsMetadata["enable_tag_filtering"]?.link && (
               <>
                 {" "}
@@ -28,7 +31,7 @@ const TagFilteringToggle: React.FC<TagFilteringToggleProps> = ({
                   href={routerFieldsMetadata["enable_tag_filtering"].link}
                   target="_blank"
                   rel="noopener noreferrer"
-                  className="text-blue-600 hover:text-blue-800 underline"
+                  className="text-primary hover:underline"
                 >
                   Learn more
                 </a>
@@ -38,7 +41,7 @@ const TagFilteringToggle: React.FC<TagFilteringToggleProps> = ({
         </div>
         <Switch
           checked={enabled}
-          onChange={onToggle}
+          onCheckedChange={onToggle}
           className="ml-4"
         />
       </div>
@@ -47,4 +50,3 @@ const TagFilteringToggle: React.FC<TagFilteringToggleProps> = ({
 };
 
 export default TagFilteringToggle;
-