feat: Added Traceloop SDK for collecting traces and metrics from Langflow (#9317)

* Added Traceloop SDK for colecting traces and metrics from Langflow

* [autofix.ci] apply automated fixes

* added test case for traceloop

* Revert "[autofix.ci] apply automated fixes"

This reverts commit 3a68113f0de65b2397ac88d1fc2cae8f786adbd7.

* Updated logic for verifying returned callbacks list length

* [autofix.ci] apply automated fixes

* api key strip validation and updated logger warning

* Add graceful fallback for Traceloop LangChain callback handler

* Removed TraceloopLangChainCallbackHandler

* default URL moved to configuration constant

* add Timeout Protection to add trace method

* add resource cleanup method for traceloop

* fix(tracing): unify span lifecycle and fix async mismatch in TraceloopTracer

- Remove incorrect asyncio.wait_for usage on synchronous method
- Store active spans in _span_map to properly end them in end_trace
- Prevent duplicate unrelated spans for same component
- Use trace.get_tracer_provider().force_flush() for correct flushing
- Add explicit close() method for manual flush at shutdown
- Enforce HTTPS in TRACELOOP_BASE_URL validation
- Improve reliability of cleanup in __del__

* stable uv.lock from upstream/main

* Fix: ensure type-safe metadata handling

* Block PYMYSQL intrumentor and relaxed https constraint

* fix(tracing): handle invalid input/output type conversion for traceloop attributes

* fix: Reduced cognitive complexity of get_trace_as_metadata method

* fix: organize child spans under single root span and added type conversion methods

* fix: Linting and formatting

* uv.lock reset to upstream main

* [autofix.ci] apply automated fixes

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Sandesh R <sandesh@ibm.com>

pyproject.toml

@@ -129,6 +129,7 @@ dependencies = [
     "jigsawstack==0.2.7",
     "aiosqlite==0.21.0",
     "fastparquet>=2024.11.0",
+    "traceloop-sdk>=0.43.1",
 ]
 
 [dependency-groups]