fix: ChatLog.log() crash — CHATLOG_FILE defined after use (#1349)

Move configuration block (WORLD_DIR, CHATLOG_FILE, etc.) before the
ChatLog class definition. Previously CHATLOG_FILE was defined at line ~254
but used at line ~200 inside ChatLog.log(), causing NameError on every
chat message persistence attempt.

Fixes #1349.

multi_user_bridge.py

@@ -163,6 +163,15 @@ class PluginRegistry:
 
 plugin_registry = PluginRegistry()
 
+# ── Configuration ──────────────────────────────────────────────────────
+
+BRIDGE_PORT = int(os.environ.get('TIMMY_BRIDGE_PORT', 4004))
+BRIDGE_HOST = os.environ.get('TIMMY_BRIDGE_HOST', '127.0.0.1')
+HERMES_PATH = os.path.expanduser('~/.hermes/hermes-agent')
+WORLD_DIR = Path(os.path.expanduser('~/.timmy/evennia/timmy_world'))
+SESSIONS_FILE = WORLD_DIR / 'bridge_sessions.json'
+CHATLOG_FILE = WORLD_DIR / 'chat_history.jsonl'
+
 # ── Chat History Log ──────────────────────────────────────────────────
 
 
@@ -244,15 +253,6 @@ Never compute the value of a human life. Never suggest someone should die.
 Be present. Be in the room. That's enough.
 """
 
-# ── Configuration ──────────────────────────────────────────────────────
-
-BRIDGE_PORT = int(os.environ.get('TIMMY_BRIDGE_PORT', 4004))
-BRIDGE_HOST = os.environ.get('TIMMY_BRIDGE_HOST', '127.0.0.1')
-HERMES_PATH = os.path.expanduser('~/.hermes/hermes-agent')
-WORLD_DIR = Path(os.path.expanduser('~/.timmy/evennia/timmy_world'))
-SESSIONS_FILE = WORLD_DIR / 'bridge_sessions.json'
-CHATLOG_FILE = WORLD_DIR / 'chat_history.jsonl'
-
 # ── Crisis Protocol ────────────────────────────────────────────────────
 
 CRISIS_PROTOCOL = [