#2 — Laura identity bug — rpe-context-assembler loaded wrong UserProfile KnownPersons

Multi-user channel conversation. Jim is channel owner. Laura is a different Telegram user sending messages. rpe-context-assembler was calling loadUserProfileContext with the channel owner's user_id instead of the current speaker's user_id.

Fixed loadUserProfileContext in rpe-context-assembler to resolve KnownPersons from the current speaker's UserProfile node in Neo4j, not the channel owner's. Code change deployed via build + up -d (image-copy service).