🧩 refactor: Decouple MCP Config from Startup Config (#10689)

* Decouple mcp config from start up config

* Chore: Work on AI Review and Copilot Comments

- setRawConfig is not needed since the private raw config is not needed any more
- !!serversLoading bug fixed
- added unit tests for route /api/mcp/servers
- copilot comments addressed

* chore: remove comments

* chore: rename data-provider dir for MCP

* chore: reorganize mcp specific query hooks

* fix: consolidate imports for MCP server manager

* chore: add dev-staging branch to frontend review workflow triggers

* feat: add GitHub Actions workflow for building and pushing Docker images to GitHub Container Registry and Docker Hub

* fix: update label for tag input in BookmarkForm tests to improve clarity

---------

Co-authored-by: Atef Bellaaj <slalom.bellaaj@external.daimlertruck.com>
Co-authored-by: Danny Avila <danny@librechat.ai>

client/src/components/Tools/MCPToolSelectDialog.tsx

@@ -34,7 +34,7 @@ function MCPToolSelectDialog({
   const { initializeServer } = useMCPServerManager();
   const { getValues, setValue } = useFormContext<AgentForm>();
   const { removeTool } = useRemoveMCPTool({ showToast: false });
-  const { mcpServersMap, startupConfig } = useAgentPanelContext();
+  const { mcpServersMap, availableMCPServersMap } = useAgentPanelContext();
   const { refetch: refetchMCPTools } = useMCPToolsQuery({
     enabled: mcpServersMap.size > 0,
   });
@@ -191,7 +191,7 @@ function MCPToolSelectDialog({
       return;
     }
 
-    const serverConfig = startupConfig?.mcpServers?.[serverName];
+    const serverConfig = availableMCPServersMap?.[serverName];
     const hasCustomUserVars =
       serverConfig?.customUserVars && Object.keys(serverConfig.customUserVars).length > 0;
 
@@ -300,7 +300,7 @@ function MCPToolSelectDialog({
               <CustomUserVarsSection
                 serverName={configuringServer}
                 isSubmitting={isSavingCustomVars}
-                fields={startupConfig?.mcpServers?.[configuringServer]?.customUserVars || {}}
+                fields={availableMCPServersMap?.[configuringServer]?.customUserVars || {}}
                 onSave={(authData) => handleSaveCustomVars(configuringServer, authData)}
                 onRevoke={() => handleRevokeCustomVars(configuringServer)}
               />