fix: google anti-bot flag + persistent/safe settings apply + TTS engine wiring

- Chrome: --disable-blink-features=AutomationControlled (+ ko-KR) so Google
  shows results, not the /sorry/ automation block.
- Settings persist to /data/jarvis-settings.json (survives recreate; entrypoint
  re-merges it) AND the runtime config; apply restarts via a DETACHED process so
  the HTTP response isn't dropped when the bridge restarts.
- Bridge reads tts_engine from the settings config so the TTS-engine choice
  actually applies.

docker/run-chrome.sh

@@ -14,6 +14,9 @@ export DISPLAY=:1
 exec google-chrome \
   --no-sandbox --no-first-run --disable-dev-shm-usage \
   --test-type \
+  --disable-blink-features=AutomationControlled \
+  --disable-features=AutomationControlled \
+  --lang=ko-KR \
   --disable-infobars \
   --no-default-browser-check \
   --disable-translate \