🏄‍♂️ refactor: Optimize Reasoning UI & Token Streaming (#5546)

* ✨ feat: Implement Show Thinking feature; refactor: testing thinking render optimizations

* ✨ feat: Refactor Thinking component styles and enhance Markdown rendering

* chore: add back removed code, revert type changes

* chore: Add back resetCounter effect to Markdown component for improved code block indexing

* chore: bump @librechat/agents and google langchain packages

* WIP: reasoning type updates

* WIP: first pass, reasoning content blocks

* chore: revert code

* chore: bump @librechat/agents

* refactor: optimize reasoning tag handling

* style: ul indent padding

* feat: add Reasoning component to handle reasoning display

* feat: first pass, content reasoning part styling

* refactor: add content placeholder for endpoints using new stream handler

* refactor: only cache messages when requesting stream audio

* fix: circular dep.

* fix: add default param

* refactor: tts, only request after message stream, fix chrome autoplay

* style: update label for submitting state and add localization for 'Thinking...'

* fix: improve global audio pause logic and reset active run ID

* fix: handle artifact edge cases

* fix: remove unnecessary console log from artifact update test

* feat: add support for continued message handling with new streaming method

---------

Co-authored-by: Marco Beretta <81851188+berry-13@users.noreply.github.com>

api/server/controllers/assistants/chatV2.js

@@ -397,18 +397,6 @@ const chatV2 = async (req, res) => {
 
       response = streamRunManager;
       response.text = streamRunManager.intermediateText;
-
-      if (response.text) {
-        const messageCache = getLogStores(CacheKeys.MESSAGES);
-        messageCache.set(
-          responseMessageId,
-          {
-            complete: true,
-            text: response.text,
-          },
-          Time.FIVE_MINUTES,
-        );
-      }
     };
 
     await processRun();