chore(docs): clean up debugging_names.md and self_hosting.md for clarity and conciseness

feat(docs): enhance self_hosting.md with additional instructions for quick setup and deployment
fix(nginx.py): add missing directory creation for nginx certificates in ssh_lib
refactor(nginx.py): update curl command filtering logic based on skip_planet configuration in http_host_lib

modules/http_host/http_host_lib/sync.py

@@ -1,5 +1,4 @@
 import shutil
-from datetime import datetime, timezone
 
 from http_host_lib.assets import download_assets
 from http_host_lib.btrfs import download_area_version