Merges CrmAssistant + OfficeAssistant into a single module with:
- Floating chat (FAB) with auto office/case mode detection
- CaseMemory entity for persistent per-case knowledge
- save_memory AI tool for proactive memory saving
- Auto-extraction hooks (status changes, hearings)
- AlertCalculator for office-level alerts
- Full conversation persistence via ConversationRepository
- RTL/Hebrew support throughout (fa_IR)
47 files, 0 dependencies on old modules.
