fix: detect job attachments independent of dynamic model build order

[radu-mocanu]

Summary

• job attachment fields are now detected reliably even when several dynamic schemas (e.g. an agent's input and output, or a tool's args) are built in the same process

Why

attachment detection compared field types by object identity against a single process-wide module attribute. each schema build registered its own attachment class under that attribute, so the most recent build won and detection on every other schema silently returned nothing.

[Copilot]

Pull request overview

This PR fixes unreliable detection of “job attachment” fields in dynamically generated Pydantic models by removing dependence on the shared dynamic module’s last-written type object. Instead, each generated attachment class now carries a stable per-class marker used during JSONPath discovery, making detection independent of dynamic model build order.

Changes:

• Add a per-class marker (__uipath_marker_name__) to dynamically generated BaseModel classes during schema-to-model conversion.
• Update type-matching logic to prefer the per-class marker over module identity when detecting referenced types.
• Add a regression test ensuring attachment detection remains correct after building a second dynamic model.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/uipath_langchain/agent/react/jsonschema_pydantic_converter.py	Sets a stable per-class marker on each generated dynamic BaseModel to avoid build-order-dependent identity issues.
src/uipath_langchain/agent/react/json_utils.py	Updates type matching to prefer the new per-class marker, keeping detection stable across multiple dynamic schema builds.
tests/agent/react/test_json_utils.py	Adds a regression test covering build-order independence for attachment detection.
pyproject.toml	Bumps project version to 0.11.17.
uv.lock	Updates locked package version to match 0.11.17.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud