Replaced hardcoded "system-internal" with proper 16-char hex ID loaded
from environment, matching dossier ID format. Created actual dossier
for system accessor with name "System".
Changes:
- Generated random 16-char hex: 7b3a3ee1c2776dcd
- Added SYSTEM_ACCESSOR_ID to anthropic.env (staging & production)
- Created dossier for system accessor (name: "System", email: "system@internal")
- Load SystemAccessorID from config in ConfigInit()
- Initialize SystemContext after config load with proper ID
- Default fallback value in config.go
Benefits:
- Proper 16-char hex format matches all other dossier IDs
- Won't break code expecting 16-char IDs
- System operations show as "System" in audit logs
- Can be changed via .env without code changes
- Has actual dossier entry for referential integrity
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>