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.

docs/database.md

@@ -32,7 +32,7 @@ This document describes the database schema used by Daemon Boyfriend.
 
 ```bash
 # PostgreSQL connection string
-DATABASE_URL=postgresql+asyncpg://user:password@localhost:5432/daemon_boyfriend
+DATABASE_URL=postgresql+asyncpg://user:password@localhost:5432/loyal_companion
 
 # Optional settings
 DATABASE_ECHO=false        # Log SQL queries
@@ -499,7 +499,7 @@ All indexes are created with `IF NOT EXISTS` for idempotency.
 ### From Code
 
 ```python
-from daemon_boyfriend.services.database import db
+from loyal_companion.services.database import db
 
 # Initialize connection
 await db.init()
@@ -512,10 +512,10 @@ await db.create_tables()
 
 ```bash
 # Create database
-createdb daemon_boyfriend
+createdb loyal_companion
 
 # Run schema
-psql -U postgres -d daemon_boyfriend -f schema.sql
+psql -U postgres -d loyal_companion -f schema.sql
 ```
 
 ### Docker
@@ -552,7 +552,7 @@ alembic downgrade -1
 For JSONB (PostgreSQL) and JSON (SQLite) compatibility:
 
 ```python
-from daemon_boyfriend.models.base import PortableJSON
+from loyal_companion.models.base import PortableJSON
 
 class MyModel(Base):
     settings = Column(PortableJSON, default={})
@@ -563,7 +563,7 @@ class MyModel(Base):
 Handles timezone-naive datetimes from SQLite:
 
 ```python
-from daemon_boyfriend.models.base import ensure_utc
+from loyal_companion.models.base import ensure_utc
 
 # Safe for both PostgreSQL (already UTC) and SQLite (naive)
 utc_time = ensure_utc(model.created_at)