🧠 feat: Thinking Budget, Include Thoughts, and Dynamic Thinking for Gemini 2.5 (#8055)

* feat: support thinking budget parameter for Gemini 2.5 series (#6949, #7542)

https://ai.google.dev/gemini-api/docs/thinking#set-budget

* refactor: update thinking budget minimum value to -1 for dynamic thinking

- see: https://ai.google.dev/gemini-api/docs/thinking#set-budget

* chore: bump @librechat/agents to v2.4.43

* refactor: rename LLMConfigOptions to OpenAIConfigOptions for clarity and consistency

- Updated type definitions and references in initialize.ts, llm.ts, and openai.ts to reflect the new naming convention.
- Ensured that the OpenAI configuration options are consistently used across the relevant files.

* refactor: port Google LLM methods to TypeScript Package

* chore: update @librechat/agents version to 2.4.43 in package-lock.json and package.json

* refactor: update thinking budget description for clarity and adjust placeholder in parameter settings

* refactor: enhance googleSettings default value for thinking budget to support dynamic adjustment

* chore: update @librechat/agents to v2.4.44 for Vertex Dynamic Thinking workaround

* refactor: rename google config function, update `createRun` types, use `reasoning` as `reasoningKey` for Google

* refactor: simplify placeholder handling in DynamicInput component

* refactor: enhance thinking budget description for clarity and allow automatic decision by setting to "-1"

* refactor: update text styling in OptionHover component for improved readability

* chore: update @librechat/agents dependency to v2.4.46 in package.json and package-lock.json

* chore: update @librechat/api version to 1.2.5 in package.json and package-lock.json

* refactor: enhance `clientOptions` handling by filtering `omitTitleOptions`, add `json` field for Google models

---------

Co-authored-by: ciffelia <15273128+ciffelia@users.noreply.github.com>

packages/api/src/endpoints/openai/initialize.ts

@@ -1,9 +1,9 @@
 import { ErrorTypes, EModelEndpoint, mapModelToAzureConfig } from 'librechat-data-provider';
 import type {
-  LLMConfigOptions,
   UserKeyValues,
-  InitializeOpenAIOptionsParams,
   OpenAIOptionsResult,
+  OpenAIConfigOptions,
+  InitializeOpenAIOptionsParams,
 } from '~/types';
 import { createHandleLLMNewToken } from '~/utils/generators';
 import { getAzureCredentials } from '~/utils/azure';
@@ -64,7 +64,7 @@ export const initializeOpenAI = async ({
     ? userValues?.baseURL
     : baseURLOptions[endpoint as keyof typeof baseURLOptions];
 
-  const clientOptions: LLMConfigOptions = {
+  const clientOptions: OpenAIConfigOptions = {
     proxy: PROXY ?? undefined,
     reverseProxyUrl: baseURL || undefined,
     streaming: true,
@@ -135,7 +135,7 @@ export const initializeOpenAI = async ({
     user: req.user.id,
   };
 
-  const finalClientOptions: LLMConfigOptions = {
+  const finalClientOptions: OpenAIConfigOptions = {
     ...clientOptions,
     modelOptions,
   };