Refactor/core qol adoption (#17655)

* Scripts: close every msg_info block with msg_ok

Past-tense msg_info calls that should have been msg_ok, notices that opened a block before a prompt, and blocks without a closing msg_ok. These already left a stale spinner; with core's block stack they would resume it after every later msg_ok.

* Generate passwords with random_password

openssl rand -base64 | tr -dc | head -c returned fewer characters than asked for, and the unfiltered | cut variants put / and + into passwords that end up in DSNs and sed expressions. Secrets an app decodes as base64 are unchanged. Requires community-scripts/core#61.

* Keep data directories through CLEAN_INSTALL instead of copying them

create_backup copied uploads, storage and similar directories twice per update and needed their size again in free space. CLEAN_INSTALL_KEEP moves them aside instead. Only directories the upstream release does not ship, in scripts that restored right after the fetch. Requires community-scripts/core#61.

* Drop the 300s uv timeout overrides

setup_uv exports UV_HTTP_TIMEOUT=600 now; the scripts' 300 only lowered it. Requires community-scripts/core#61.

install/hev-socks5-server-install.sh

@@ -19,7 +19,7 @@ msg_info "Setup hev-socks5-server"
 mkdir -p /etc/hev-socks5-server
 download_file "https://raw.githubusercontent.com/heiher/hev-socks5-server/refs/heads/main/conf/main.yml" "/etc/hev-socks5-server/main.yml"
 sed -i 's/^#auth:/auth:/; s/^# file: conf\/auth.txt/  file: \/root\/hev.creds/'  /etc/hev-socks5-server/main.yml
-PASSWORD=$(openssl rand -base64 16)
+PASSWORD=$(random_password 21)
 echo "admin $PASSWORD 0" >/root/hev.creds
 msg_ok "Setup hev-socks5-server"