Per R-012: delete conversation.rs, both overheard content files, and
remove all 6 wire-up points (social_plugin, bridge/types, monologue,
voice/integration). Protocol version 22 → 23. Scope confirmed by
#842 audit — npc/ and content/global/ untouched. Surviving NPC
components (NpcName, NpcColorIndex, NpcConversation) migrated to
simulation/npc_components.rs for use by D-080 knowledge propagation.
Also applies pre-existing cargo fmt debt (names.rs and 4 others).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
CultureResolver with Arc<Mutex<Connection>> over systems.db (SQLITE_OPEN_READ_ONLY).
3-pass lookup: system_id → body_id (COALESCE parent fallback) → station_id.
CultureResolverResource registered in main.rs with graceful warn-on-missing.
BookmarkRegistry.build_catalog() uses resolver for allowed_locations_cultures.
8 unit tests including concurrent safety. SQLite fixture at
server/src/knowledge/fixtures/culture_test.db.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
jpmschweitzerandClaude Sonnet 4.6