Add Cypher 25 SEARCH clause for vector retrievers#488

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oskarhane wants to merge 13 commits intoneo4j:mainfrom

oskarhane:oskar/cypher25-search-clause

Commits on Mar 13, 2026

cypher25-search-clause-vector-retrievers-task-001: add cached version detection + supports_search_clause

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cypher25-search-clause-vector-retrievers-task-002: add filter classification for SEARCH-compatible predicates

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cypher25-search-clause-vector-retrievers-task-003: add SEARCH clause query builder

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cypher25-search-clause-vector-retrievers-task-004: add filterable_properties to create_vector_index

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cypher25-search-clause-vector-retrievers-task-005: integrate SEARCH clause routing into vector retrievers

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cypher25-search-clause-vector-retrievers-task-006: integrate SEARCH clause into hybrid retrievers

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cypher25-search-clause-vector-retrievers-task-008: add neo4j 2026 docker-compose for e2e tests

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cypher25-search-clause-vector-retrievers-task-007: comprehensive unit tests for SEARCH clause

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cypher25-search-clause-vector-retrievers-task-009: e2e tests + fix WITH clause order

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cypher25-search-clause-vector-retrievers-task-010: docs for SEARCH clause + filterable properties

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fix: ruff format 5 files that failed CI

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remove .plans/ from tracking — already in .gitignore

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Commits on Mar 14, 2026

fix: hybrid uses procedure for fulltext, vector catches PropertyNotFound

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