🧠 fix: Agent Title Config & Resource Handling (#8028)

* 🔧 fix: enhance client options handling in AgentClient and set default recursion limit

- Updated the recursion limit to default to 25 if not specified in agentsEConfig.
- Enhanced client options in AgentClient to include model parameters such as apiKey and anthropicApiUrl from agentModelParams.
- Updated requestOptions in the anthropic endpoint to use reverseProxyUrl as anthropicApiUrl.

* Enhance LLM configuration tests with edge case handling

* chore add return type annotation for getCustomEndpointConfig function

* fix: update modelOptions handling to use optional chaining and default to empty object in multiple endpoint initializations

* chore: update @librechat/agents to version 2.4.42

* refactor: streamline agent endpoint configuration and enhance client options handling for title generations

- Introduced a new `getProviderConfig` function to centralize provider configuration logic.
- Updated `AgentClient` to utilize the new provider configuration, improving clarity and maintainability.
- Removed redundant code related to endpoint initialization and model parameter handling.
- Enhanced error logging for missing endpoint configurations.

* fix: add abort handling for image generation and editing in OpenAIImageTools

* ci: enhance getLLMConfig tests to verify fetchOptions and dispatcher properties

* fix: use optional chaining for endpointOption properties in getOptions

* fix: increase title generation timeout from 25s to 45s, pass `endpointOption` to `getOptions`

* fix: update file filtering logic in getToolFilesByIds to ensure text field is properly checked

* fix: add error handling for empty OCR results in uploadMistralOCR and uploadAzureMistralOCR

* fix: enhance error handling in file upload to include 'No OCR result' message

* chore: update error messages in uploadMistralOCR and uploadAzureMistralOCR

* fix: enhance filtering logic in getToolFilesByIds to include context checks for OCR resources to only include files directly attached to agent

---------

Co-authored-by: Matt Burnett <matt.burnett@shopify.com>

api/server/services/Endpoints/agents/agent.js

@@ -11,30 +11,13 @@ const {
   replaceSpecialVars,
   providerEndpointMap,
 } = require('librechat-data-provider');
-const initAnthropic = require('~/server/services/Endpoints/anthropic/initialize');
-const getBedrockOptions = require('~/server/services/Endpoints/bedrock/options');
-const initOpenAI = require('~/server/services/Endpoints/openAI/initialize');
-const initCustom = require('~/server/services/Endpoints/custom/initialize');
-const initGoogle = require('~/server/services/Endpoints/google/initialize');
+const { getProviderConfig } = require('~/server/services/Endpoints');
 const generateArtifactsPrompt = require('~/app/clients/prompts/artifacts');
-const { getCustomEndpointConfig } = require('~/server/services/Config');
 const { processFiles } = require('~/server/services/Files/process');
 const { getFiles, getToolFilesByIds } = require('~/models/File');
 const { getConvoFiles } = require('~/models/Conversation');
 const { getModelMaxTokens } = require('~/utils');
 
-const providerConfigMap = {
-  [Providers.XAI]: initCustom,
-  [Providers.OLLAMA]: initCustom,
-  [Providers.DEEPSEEK]: initCustom,
-  [Providers.OPENROUTER]: initCustom,
-  [EModelEndpoint.openAI]: initOpenAI,
-  [EModelEndpoint.google]: initGoogle,
-  [EModelEndpoint.azureOpenAI]: initOpenAI,
-  [EModelEndpoint.anthropic]: initAnthropic,
-  [EModelEndpoint.bedrock]: getBedrockOptions,
-};
-
 /**
  * @param {object} params
  * @param {ServerRequest} params.req
@@ -114,17 +97,9 @@ const initializeAgent = async ({
     })) ?? {};
 
   agent.endpoint = provider;
-  let getOptions = providerConfigMap[provider];
-  if (!getOptions && providerConfigMap[provider.toLowerCase()] != null) {
-    agent.provider = provider.toLowerCase();
-    getOptions = providerConfigMap[agent.provider];
-  } else if (!getOptions) {
-    const customEndpointConfig = await getCustomEndpointConfig(provider);
-    if (!customEndpointConfig) {
-      throw new Error(`Provider ${provider} not supported`);
-    }
-    getOptions = initCustom;
-    agent.provider = Providers.OPENAI;
+  const { getOptions, overrideProvider } = await getProviderConfig(provider);
+  if (overrideProvider) {
+    agent.provider = overrideProvider;
   }
 
   const _endpointOption =