feat: add anthropic mcp endpoint (#5148)

* mcp WIP

* [autofix.ci] apply automated fixes

* logging and flow user check

* mcp stdio client component

* handle disconnect better

* initialization

* session fix and type fix

* [autofix.ci] apply automated fixes

* defensive against mcp server bugs

* [autofix.ci] apply automated fixes

* notifications and sse component

* enabled flags and resource support

* remove unneeded print

* extract json schema util

* [autofix.ci] apply automated fixes

* ruff

* fix tools [] bug and db asysnc session api change

* Tool instead of StructuredTool

* ruff fixes

* ruff

* validation optimization

* fix frontend test

* another playwright fix

* Update src/frontend/tests/extended/features/notifications.spec.ts

Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org>

* mcp component descriptions

* mypy fixes

* fix setup_database_url test

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org>

src/frontend/tests/extended/regression/generalBugs-shard-3.spec.ts

@@ -90,7 +90,7 @@ test(
     }
 
     await page.locator(".react-flow__pane").click();
-
+    await adjustScreenView(page, { numberOfZoomOut: 1 });
     await visibleElementHandle.hover();
     await page.mouse.down();