- getDocumentById: add @Transactional(readOnly=true) — calls
tagService.resolveEffectiveColors(doc.getTags()) which requires an open
session after the LAZY switch
- getRecentActivity: add @Transactional(readOnly=true) — callers may access
tags/receivers on the returned list; keeps session open for @BatchSize fetches
- updateDocumentTags: add @Transactional — write method was missing annotation
Also adds @JsonIgnoreProperties({"hibernateLazyInitializer","handler"}) to
Person and Tag to prevent Jackson serialization errors on uninitialized
lazy proxies.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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