v0.1.3

What's Changed

• Bump moduna-otel to 0.1.3.
• Improve LangChain telemetry attributes with expanded GenAI and LangSmith coverage.
• Add PEP 561 typing marker and typed internal modules.
• Add Google LangChain integration coverage.

Verification

• uv run pytest
• uv run ruff check .
• uv run basedpyright
• uv build --out-dir /private/tmp/moduna-otel-build