chore(main): release 0.5.0

[sw-release-bot]

🤖 I have created a release beep boop

0.5.0 (2026-04-12)

Features

• langchain: add similarity_search() to CoordinodeGraph (7c4d4c0), closes #20
• similarity_search() for LangChain + upsert_relations() idempotency test (f0ad603)
• use MERGE for edges, wildcard patterns, type()/labels() functions (1101ac8)
• use MERGE for edges, wildcard patterns, type()/labels() functions (6d009a7), closes #24

Bug Fixes

• langchain: align similarity_search() signature with Sequence protocol and issue spec (ab3559e)
• langchain: deduplicate relationship triples after _first_label normalization (f0e1ff3)
• langchain: guard empty query_vector via len() for Sequence compatibility (951b487)
• langchain: sort similarity_search() results by distance + tighten test (c9246ac)
• langchain: use min() in _first_label for deterministic label selection (778e8c3)

Documentation

• langchain: explain why refresh_schema uses no LIMIT on DISTINCT query (ab1ea64)

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarQube Cloud

[sw-release-bot]

🤖 Created releases:

• v0.5.0

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