fix: shared memory for evals

[cristipufu]

Development Package

• Add this package as a dependency in your pyproject.toml:

[project]
dependencies = [
  # Exact version:
  "uipath-langchain==0.0.142.dev1002350828",

  # Any version from PR
  "uipath-langchain>=0.0.142.dev1002350000,<0.0.142.dev1002360000"
]

[[tool.uv.index]]
name = "testpypi"
url = "https://test.pypi.org/simple/"
publish-url = "https://test.pypi.org/legacy/"
explicit = true

[tool.uv.sources]
uipath-langchain = { index = "testpypi" }

[Copilot]

Pull Request Overview

This PR fixes shared memory handling for evaluations by centralizing the memory management and ensuring consistent state persistence across evaluation runs. The changes address issues with execution ID management and shared memory configuration.

Key changes:

• Introduces centralized connection string generation for SQLite state persistence
• Restructures evaluation middleware to properly initialize and share AsyncSqliteSaver memory across runtime contexts
• Removes hardcoded execution_id assignments in favor of default values

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
src/uipath_langchain/_cli/cli_run.py	Removes execution_id assignment and uses hardcoded "default" value for debug bridge
src/uipath_langchain/_cli/cli_eval.py	Adds shared memory initialization with AsyncSqliteSaver and restructures async flow
src/uipath_langchain/_cli/cli_debug.py	Removes execution_id assignment for consistency

---

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[Copilot]

The fallback path '__uipath/state.db' does not ensure the directory exists before returning the path. This could cause a failure when AsyncSqliteSaver attempts to create the database file if the '__uipath' directory doesn't exist. Add os.makedirs('__uipath', exist_ok=True) before returning the fallback path.

Suggested change

	return os.path.join(context.runtime_dir, context.state_file)
	return os.path.join(context.runtime_dir, context.state_file)
	os.makedirs("__uipath", exist_ok=True)

[Copilot]

[nitpick] Empty line 48 creates unnecessary whitespace before the function definition. Remove this blank line for cleaner code formatting.

Suggested change