fix: forward isTemporary from client for retention on file uploads and tool calls

Server-side `getRetentionExpiry` (file uploads) and the tool-call
controller both read `req.body.isTemporary`, but the file upload
multipart form and the tool-call payload did not include that field.
In `retentionMode: temporary` (default), files uploaded and tool
calls created from temporary chats were therefore retained
indefinitely.

Forward the Recoil `isTemporary` flag in both client paths so the
existing server checks can fire correctly. `ToolParams` gains an
optional `isTemporary` field.

Addresses Codex P1 review feedback on PR #29.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

client/src/components/Messages/Content/RunCode.tsx

@@ -1,5 +1,6 @@
 import React, { useState, useMemo, useCallback, useEffect, useRef } from 'react';
 import debounce from 'lodash/debounce';
+import { useRecoilValue } from 'recoil';
 import { Tools } from 'librechat-data-provider';
 import { TerminalSquareIcon, Check, X } from 'lucide-react';
 import { Spinner, TooltipAnchor, useToastContext } from '@librechat/client';
@@ -8,6 +9,7 @@ import { useToolCallMutation } from '~/data-provider';
 import { useLocalize } from '~/hooks';
 import { cn, normalizeLanguage } from '~/utils';
 import { useMessageContext } from '~/Providers';
+import store from '~/store';
 
 type RunState = 'idle' | 'loading' | 'success' | 'error';
 
@@ -23,6 +25,7 @@ const RunCode: React.FC<CodeBarProps & { iconOnly?: boolean }> = React.memo(
 
     const { messageId, conversationId, partIndex } = useMessageContext();
     const normalizedLang = useMemo(() => normalizeLanguage(lang), [lang]);
+    const isTemporary = useRecoilValue(store.isTemporary);
 
     const handleExecute = useCallback(async () => {
       const codeString: string = codeRef.current?.textContent ?? '';
@@ -42,8 +45,18 @@ const RunCode: React.FC<CodeBarProps & { iconOnly?: boolean }> = React.memo(
         conversationId: conversationId ?? '',
         lang: normalizedLang,
         code: codeString,
+        isTemporary,
       });
-    }, [codeRef, execute, partIndex, messageId, blockIndex, conversationId, normalizedLang]);
+    }, [
+      codeRef,
+      execute,
+      partIndex,
+      messageId,
+      blockIndex,
+      conversationId,
+      normalizedLang,
+      isTemporary,
+    ]);
 
     const debouncedExecute = useMemo(
       () => debounce(handleExecute, 1000, { leading: true }),

client/src/hooks/Files/useFileHandling.ts

@@ -1,6 +1,6 @@
 import React, { useCallback, useEffect, useRef, useMemo, useState } from 'react';
 import { v4 } from 'uuid';
-import { useSetRecoilState } from 'recoil';
+import { useRecoilValue, useSetRecoilState } from 'recoil';
 import { useToastContext } from '@librechat/client';
 import { useQueryClient } from '@tanstack/react-query';
 import {
@@ -22,7 +22,7 @@ import useLocalize, { TranslationKeys } from '~/hooks/useLocalize';
 import { useDelayedUploadToast } from './useDelayedUploadToast';
 import { processFileForUpload } from '~/utils/heicConverter';
 import { useChatContext } from '~/Providers/ChatContext';
-import { ephemeralAgentByConvoId } from '~/store';
+import store, { ephemeralAgentByConvoId } from '~/store';
 import useClientResize from './useClientResize';
 import useUpdateFiles from './useUpdateFiles';
 
@@ -57,6 +57,7 @@ const useFileHandlingCore = (params: UseFileHandling | undefined, fileState: Fil
   const setEphemeralAgent = useSetRecoilState(
     ephemeralAgentByConvoId(conversation?.conversationId ?? Constants.NEW_CONVO),
   );
+  const isTemporary = useRecoilValue(store.isTemporary);
   const setError = (error: string) => setErrors((prevErrors) => [...prevErrors, error]);
   const { addFile, replaceFile, updateFileById, deleteFileById } = useUpdateFiles(
     params?.fileSetter ?? setFiles,
@@ -192,6 +193,9 @@ const useFileHandlingCore = (params: UseFileHandling | undefined, fileState: Fil
     formData.append('endpointType', endpointType ?? '');
     formData.append('file', extendedFile.file as File, encodeURIComponent(filename));
     formData.append('file_id', extendedFile.file_id);
+    if (isTemporary) {
+      formData.append('isTemporary', 'true');
+    }
 
     const width = extendedFile.width ?? 0;
     const height = extendedFile.height ?? 0;

packages/data-provider/src/types/mutations.ts

@@ -446,6 +446,7 @@ export type ToolParams<T extends ToolId> = ToolParamsMap[T] & {
   partIndex?: number;
   blockIndex?: number;
   conversationId: string;
+  isTemporary?: boolean;
 };
 export type ToolCallResponse = { result: unknown; attachments?: types.TAttachment[] };
 export type ToolCallMutationOptions<T extends ToolId> = MutationOptions<