fix(install): prioritize .bash_profile over .bashrc on macOS

- Reorder bash config_files to check .bash_profile first since macOS
  Terminal.app runs login shells which source .bash_profile, not .bashrc
- Use XDG_CONFIG_HOME for fish config instead of hardcoded path
- Show manual PATH instructions when --no-modify-path is used

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: betegon

docs/public/install

@@ -117,19 +117,19 @@ XDG_CONFIG_HOME=${XDG_CONFIG_HOME:-$HOME/.config}
 current_shell=$(basename "${SHELL:-sh}")
 case $current_shell in
   fish)
-    config_files=("$HOME/.config/fish/config.fish")
+    config_files=("$XDG_CONFIG_HOME/fish/config.fish")
     ;;
   zsh)
     config_files=("$HOME/.zshrc" "$HOME/.zshenv" "$XDG_CONFIG_HOME/zsh/.zshrc" "$XDG_CONFIG_HOME/zsh/.zshenv")
     ;;
   bash)
-    config_files=("$HOME/.bashrc" "$HOME/.bash_profile" "$HOME/.profile" "$XDG_CONFIG_HOME/bash/.bashrc" "$XDG_CONFIG_HOME/bash/.bash_profile")
+    config_files=("$HOME/.bash_profile" "$HOME/.bashrc" "$HOME/.profile" "$XDG_CONFIG_HOME/bash/.bash_profile" "$XDG_CONFIG_HOME/bash/.bashrc")
     ;;
   ash|sh)
     config_files=("$HOME/.profile" "/etc/profile")
     ;;
   *)
-    config_files=("$HOME/.bashrc" "$HOME/.bash_profile" "$HOME/.profile")
+    config_files=("$HOME/.bash_profile" "$HOME/.bashrc" "$HOME/.profile")
     ;;
 esac
 
@@ -162,6 +162,16 @@ if [[ "$no_modify_path" != "true" ]]; then
         ;;
     esac
   fi
+else
+  echo -e "${MUTED}Skipping PATH modification. Manually add to your shell config:${NC}"
+  case $current_shell in
+    fish)
+      echo "  fish_add_path \"$install_dir\""
+      ;;
+    *)
+      echo "  export PATH=\"$install_dir\":\$PATH"
+      ;;
+  esac
 fi
 
 if [[ -n "${GITHUB_ACTIONS:-}" ]] && [[ "${GITHUB_ACTIONS}" == "true" ]] && [[ -n "${GITHUB_PATH:-}" ]]; then