fix(cli): only claim uipath new scaffolds for langchain agents - #1069

Problem

langgraph_new_middleware returns should_continue=False unconditionally, so installing uipath-langchain hijacks uipath new process-wide and the base function scaffold becomes unreachable (UiPath/uipath-python#1543). This also breaks the uip function new -l py path, which delegates to uipath new and expects a function project.

Changes

• The middleware now takes project_type / agent_framework (forwarded by uipath new since 2.14.15) and claims the command for --type auto (the default: an installed framework wins, preserving today's behaviour) and for --type agent with the langchain framework; everything else passes through to the base scaffold or another framework's integration.
• Defaults (ProjectType.AGENT / AgentFramework.LANGCHAIN) preserve current behaviour when an older uipath CLI calls with just the project name.
• Comparisons use != rather than identity so callers passing plain strings gate correctly (the enums subclass str).
• Version bumped to 0.17.9; uipath floor raised to 2.14.15.

Behaviour with uipath >= 2.14.15

Testing

• 9/9 in tests/cli/test_new.py (7 new cases incl. plain-string gating and old-CLI default), mypy and ruff clean, run against the TestPyPI dev build uipath==2.14.15.dev1018867615.
• Verified end-to-end in a venv with both packages installed editable.

🤖 Generated with Claude Code

Development Package

• Use uipath pack --nolock to get the latest dev build from this PR (requires version range).
• Add this package as a dependency in your pyproject.toml:

[project]
dependencies = [
  # Exact version:
  "uipath-langchain==0.17.9.dev1010695775",

  # Any version from PR
  "uipath-langchain>=0.17.9.dev1010690000,<0.17.9.dev1010700000"
]

[[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" }

[tool.uv]
override-dependencies = [
    "uipath-langchain>=0.17.9.dev1010690000,<0.17.9.dev1010700000",
]