Dockerize: one-command stack with auto Ollama model pull

`docker compose up -d --build` now brings up the whole thing automatically —
no host setup needed:

- All-in-one javis image: TigerVNC+XFCE desktop, Chrome, Python brain bridge,
  Node/bun bot, managed by supervisord (verified: all 6 programs RUNNING).
- ollama service + one-shot ollama-init that auto-pulls chat+embed models
  (verified end-to-end; `ollama list` shows pulled models).
- Discord token deferred: without DISCORD_BOT_TOKEN the desktop, bridge,
  Ollama and models all run; only the bot waits (no crash loop).
- Slim container deps (bridge/requirements-bridge.txt) drop the unused
  PyQt6/torch/chatterbox/sounddevice stack. Piper voice + Whisper models
  auto-download into named volumes.
- Configurable host ports (VNC_PORT/NOVNC_PORT/BRIDGE_PORT) to avoid clashing
  with a host VNC already on 5901. Bridge binds 0.0.0.0 in-container.

Verified: image builds; brain imports; bridge /health 200; noVNC 200;
X display :1 @1920x1080; auto-pull completes; supervisorctl status all RUNNING.

docker/run-bot.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# Wait for the brain bridge, then run the Discord bot.
+#
+# The Discord token is intentionally deferred: if DISCORD_BOT_TOKEN is not set
+# yet, the rest of the stack (desktop, bridge, ollama) still runs fully. The bot
+# just waits. Add the token to .env and `docker compose up -d` to start it.
+set -e
+cd /app/bot
+
+if [ -z "${DISCORD_BOT_TOKEN:-}" ]; then
+  echo "[bot] DISCORD_BOT_TOKEN 미설정 — 봇 대기 중. .env에 토큰을 넣고 'docker compose up -d' 하면 시작됩니다."
+  echo "[bot] (그동안 VNC 데스크톱 / 브릿지 / Ollama 는 정상 동작합니다.)"
+  exec sleep infinity
+fi
+
+BRIDGE="${BRIDGE_URL:-http://127.0.0.1:8765}"
+for i in $(seq 1 60); do
+  curl -fsS "$BRIDGE/health" >/dev/null 2>&1 && break
+  sleep 1
+done
+bun run register || echo "[bot] slash command registration failed (continuing)"
+exec bun run start