Add Wordle, welcome system, integrations, and update roadmap

- Add Wordle game engine with daily puzzles, hard mode, stats, and share
- Add welcome module (react-to-join onboarding, Space join DMs)
- Add Ollama LLM integration (!ask), Minecraft RCON whitelist (!minecraft)
- Add !trivia, !champion, !agent, !health commands
- Add DM routing for Wordle (games in DMs, share to public room)
- Update README: reflect Phase 4 completion, hookshot webhook setup,
  infrastructure migration (LXC 151/109 to large1), Spam and Stuff room,
  all 12 webhook connections with UUIDs and transform notes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

config.py

@@ -10,6 +10,7 @@ MATRIX_HOMESERVER = os.getenv("MATRIX_HOMESERVER", "https://matrix.lotusguild.or
 MATRIX_USER_ID = os.getenv("MATRIX_USER_ID", "@lotusbot:matrix.lotusguild.org")
 MATRIX_ACCESS_TOKEN = os.getenv("MATRIX_ACCESS_TOKEN", "")
 MATRIX_DEVICE_ID = os.getenv("MATRIX_DEVICE_ID", "")
+MATRIX_PASSWORD = os.getenv("MATRIX_PASSWORD", "")
 
 # Bot settings
 BOT_PREFIX = os.getenv("BOT_PREFIX", "!")
@@ -34,7 +35,7 @@ MAX_USERNAME_LENGTH = 16
 
 
 class ConfigValidator:
-    REQUIRED = ["MATRIX_HOMESERVER", "MATRIX_USER_ID", "MATRIX_ACCESS_TOKEN", "MATRIX_DEVICE_ID"]
+    REQUIRED = ["MATRIX_HOMESERVER", "MATRIX_USER_ID"]
 
     @classmethod
     def validate(cls):