refactor: Transform daemon_boyfriend into Loyal Companion

Rebrand and personalize the bot as 'Bartender' - a companion for those
who love deeply and feel intensely.

Major changes:
- Rename package: daemon_boyfriend -> loyal_companion
- New default personality: Bartender - wise, steady, non-judgmental
- Grief-aware system prompt (no toxic positivity, attachment-informed)
- New relationship levels: New Face -> Close Friend progression
- Bartender-style mood modifiers (steady presence)
- New fact types: attachment_pattern, grief_context, coping_mechanism
- Lower mood decay (0.05) for emotional stability
- Higher fact extraction rate (0.4) - Bartender pays attention

Updated all imports, configs, Docker files, and documentation.

tests/test_models.py

@@ -4,7 +4,7 @@ from datetime import datetime, timedelta, timezone
 
 import pytest
 
-from daemon_boyfriend.models import (
+from loyal_companion.models import (
     BotOpinion,
     BotState,
     Conversation,
@@ -20,7 +20,7 @@ from daemon_boyfriend.models import (
     UserPreference,
     UserRelationship,
 )
-from daemon_boyfriend.models.base import utc_now
+from loyal_companion.models.base import utc_now
 
 
 class TestUtcNow: