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/domain-locker-install.sh

@@ -46,7 +46,7 @@ set -a
 source /opt/domain-locker.env
 set +a
 $STD npm run build
-msg_info "Built Domain-Locker"
+msg_ok "Built Domain-Locker"
 
 msg_info "Building Database schema"
 export PGPASSWORD="$DL_PG_PASSWORD"
@@ -69,7 +69,7 @@ Restart=always
 WantedBy=multi-user.target
 EOF
 systemctl enable -q --now domain-locker
-msg_info "Created Service"
+msg_ok "Created Service"
 
 motd_ssh
 customize