feat(fake-llm-server): add initial setup for fake LLM server with TypeScript and Express

- Created package.json for dependencies and scripts
- Added tsconfig.json for TypeScript configuration
- Implemented fake stdio MCP server with basic calculator and environment variable printing tools
- Added shell script to run the fake stdio MCP server
- Updated root tsconfig.json for project references and path mapping

backups/backup-20251218-161645/src/components/ChatInputControls.tsx

@@ -0,0 +1,37 @@
+import { ContextFilesPicker } from "./ContextFilesPicker";
+import { ModelPicker } from "./ModelPicker";
+import { ProModeSelector } from "./ProModeSelector";
+import { ChatModeSelector } from "./ChatModeSelector";
+import { McpToolsPicker } from "@/components/McpToolsPicker";
+import { useSettings } from "@/hooks/useSettings";
+
+export function ChatInputControls({
+  showContextFilesPicker = false,
+}: {
+  showContextFilesPicker?: boolean;
+}) {
+  const { settings } = useSettings();
+
+  return (
+    <div className="flex">
+      <ChatModeSelector />
+      {settings?.selectedChatMode === "agent" && (
+        <>
+          <div className="w-1.5"></div>
+          <McpToolsPicker />
+        </>
+      )}
+      <div className="w-1.5"></div>
+      <ModelPicker />
+      <div className="w-1.5"></div>
+      <ProModeSelector />
+      <div className="w-1"></div>
+      {showContextFilesPicker && (
+        <>
+          <ContextFilesPicker />
+          <div className="w-0.5"></div>
+        </>
+      )}
+    </div>
+  );
+}