feat: improve user onboarding and setup UX (#1436)

* feat: add beginner onboarding and mode switching flow

* chore: ignore local gh auth config

* fix: restore kline fallback and align onboarding language

---------

Co-authored-by: zavier-bin <zhaobbbhhh@gmail.com>

docker-compose.yml

@@ -11,6 +11,7 @@ services:
       - "${NOFX_BACKEND_PORT:-8080}:8080"
       - "6060:6060"  # pprof profiling
     volumes:
+      - ./.env:/app/.env
       - ./data:/app/data
       - /etc/localtime:/etc/localtime:ro
     env_file:
@@ -49,4 +50,4 @@ services:
 
 networks:
   nofx-network:
-    driver: bridge
+    driver: bridge