chore(main): release 0.4.0

[sw-release-bot]

🤖 I have created a release beep boop

0.4.0 (2026-04-09)

Features

• coordinode: import version from hatch-vcs _version.py (1c64499)
• initial Python SDK for CoordiNode (a95c513)
• uv workspace + PyPI READMEs + donation QR (744f5f6)

Bug Fixes

• build: portable sed -i.bak instead of macOS-only sed -i '' (1c64499)
• build: sync .PHONY — install-uv to install-pip (1c64499)
• client,langchain,tests: closed-loop guard, relationships TODO, remove dead fixture (f843229)
• client,tests,langchain: port sentinel, lazy connect, schema parser (a704de5)
• client: add debug logging on gRPC health check failure (ea8f1ff)
• client: parse host:port regardless of default port value (1c64499)
• client: use regex for host:port parsing to avoid bare IPv6 misparse (ada7809), closes #1
• correct API usage across SDK, tests, and integrations (afc7e8b), closes #1
• langchain,tests: implement relationship introspection via Cypher, fix formatting (27e92f3)
• llama-index,client,build: prevent param collision, port conflict, and sed idempotency (92d10eb)
• llama-index: align delete() to use n.id (string) not id(n) (int graph ID) (ea8f1ff)
• llama-index: escape node label in upsert_nodes with _cypher_ident (ea8f1ff)
• llama-index: extract rel type from dict in get_rel_map variable-length path (bc156c3)
• llama-index: prevent Cypher injection via backtick-escaped identifiers (1c64499)
• make proto stubs importable and tests green (c988e75)
• release: remove trailing blank line in release.yml (1c64499)
• release: remove unused outputs from release-please.yml (1c64499)
• release: use default versioning strategy for release-please (73c15b5)
• release: use default versioning strategy for release-please (ad8b121)
• SDK API correctness — constructor, cypher result, VectorResult fields (2462cb9)
• test: correct xfail reason for test_vector_search (0c246ae)
• types,client: use tuple syntax in isinstance, remove no-op proto import (cc786bb)
• types: exclude bool from vector fast-path; fix docstring and id() usage (ecca302)

Documentation

• release: document single shared version intent in release-please-config.json (ea8f1ff)

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This PR was generated with Release Please. See documentation.

[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:

• v0.4.0

🌻