Unify global installer with shared PS1

- Use dotfiles/ps1/ps1.sh for global installs

- Force NF caps and bold prompt arrow in shared PS1

dotfiles/ps1/ps1.sh

@@ -18,6 +18,9 @@ if [[ -f "$HOME/.config/ps1/disable" ]]; then
   return 0
 fi
 
+# Force NF separators globally (rounded caps) unless ASCII is forced.
+export PS1_FORCE_NF=1
+
 # Nerd Font detection (best-effort) + overrides
 #   PS1_FORCE_ASCII=1 -> always fallback separators
 #   PS1_FORCE_NF=1    -> always Nerd Font separators
@@ -90,6 +93,8 @@ _ps1_set_prompt() {
   # Status colors
   local OK="\[\e[38;5;76m\]"
   local BAD="\[\e[38;5;203m\]"
+  local BOLD="\[\e[1m\]"
+  local NOBOLD="\[\e[22m\]"
 
   local left right sep
   if [[ "$__PS1_USE_NF" -eq 1 ]]; then
@@ -100,16 +105,16 @@ _ps1_set_prompt() {
 
   local prompt_sym
   if [[ "$__PS1_STATUS" -eq 0 ]]; then
-    prompt_sym="${OK}➜${RST}"
+    prompt_sym="${OK}${BOLD}➜${NOBOLD}${RST}"
   else
-    prompt_sym="${BAD}➜${RST}"
+    prompt_sym="${BAD}${BOLD}➜${NOBOLD}${RST}"
   fi
 
   # Keep order: date time user | host path, newline, then prompt
   PS1="\
 ${FRAME}╭─${RST}\
 ${Z1_BG}${Z1_FG}${left} \\d \\A \\u ${RST}${Z1_BG}${Z2_BG}${Z2_FG}${sep}${RST}\
-${Z2_BG}${Z2_FG} @\\h ${PATH_FG}${__PS1_PATH} ${RST}${Z2_BG}${Z2_FG}${right}${RST}\
+${Z2_BG}${Z2_FG} @\\h ${PATH_FG}${__PS1_PATH}${RST}${Z2_BG}${Z2_FG}${right}${RST}\
 \n${FRAME}╰── ${RST}${prompt_sym} ${__PS1_SYM} "
 }