refactor(headscale): flatten + move headscale into its app folder

Move the whole central scripts/headscale/ tree into containers/headscale/, the
last app-specific dir living centrally:

- 11 sourced function files (incl. the former local/ remote/ subdirs) flattened
  into containers/headscale/scripts/ — flat because the container scan is
  maxdepth 3, so one subfolder level is the limit; basenames already encode the
  local/remote distinction.
- tailscale.sh is a CONTAINER PAYLOAD (ends in a bare `install_tailscale` call,
  runs apt/curl) — it must never be sourced into the manager, so it goes to
  containers/headscale/resources/ (pruned by the scan), NOT scripts/. Verified
  install_tailscale does not leak into the runtime after sourcing.
- Fix tailscaleInstallToContainer to copy the payload from its new resources/
  path (it previously referenced ${install_scripts_dir}tailscale.sh, which never
  matched the file's actual location) and drop the dead commented docker-cp line.
- Remove the now-moot headscale special-case from generate_arrays.sh; regenerate
  (files_headscale.sh drops — headscale is fully container-scanned now).

All 11 functions source + define cleanly; callers resolve by name regardless of
location.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>

containers/headscale/scripts/tailscale_install.sh

@@ -8,13 +8,11 @@ tailscaleInstallToContainer()
     local result=$(createFolders "loud" $docker_install_user $containers_dir$app_name/tailscale)
     checkSuccess "Creating Tailscale folder"
 
-    copyFile "loud" "${install_scripts_dir}tailscale.sh" "$containers_dir$app_name/tailscale/tailscale.sh" $docker_install_user | runInstallWrite -a "$logs_dir/$docker_log_file" 2>&1
+    copyFile "loud" "${install_containers_dir}headscale/resources/tailscale.sh" "$containers_dir$app_name/tailscale/tailscale.sh" $docker_install_user | runInstallWrite -a "$logs_dir/$docker_log_file" 2>&1
 
     if [[ "$type" != "install" ]]; then
         dockerComposeRestart $app_name;
     fi
-    #dockerCommandRun "docker cp ${install_scripts_dir}tailscale.sh $app_name:/usr/local/bin/tailscale.sh"
-    #checkSuccess "Installing Tailscale installer script into the $app_name container"
 
     dockerCommandRun "docker exec -it $app_name /usr/local/bin/tailscale.sh"
     checkSuccess "Executing Tailscale installer script in the $app_name container"

scripts/source/files/arrays/files_headscale.sh

@@ -1,19 +0,0 @@
-#!/bin/bash
-
-# This file is auto-generated by generate_arrays.sh
-# Do not edit manually - run './scripts/source/files/generate_arrays.sh run' to regenerate
-
-headscale_scripts=(
-    "headscale/headscale_commands.sh"
-    "headscale/headscale_edit_config.sh"
-    "headscale/headscale_setup.sh"
-    "headscale/headscale_user.sh"
-    "headscale/local/headscale_generate_auth.sh"
-    "headscale/local/headscale_get_hostname.sh"
-    "headscale/local/headscale_setup_localhost.sh"
-    "headscale/local/headscale_setup_local.sh"
-    "headscale/remote/headscale_check_remote.sh"
-    "headscale/remote/headscale_setup_remote.sh"
-    "headscale/tailscale/tailscale_install.sh"
-
-)

scripts/source/files/arrays/files_source.sh

@@ -14,7 +14,6 @@ source_scripts=(
     "source/files/arrays/files_database.sh"
     "source/files/arrays/files_docker.sh"
     "source/files/arrays/files_function.sh"
-    "source/files/arrays/files_headscale.sh"
     "source/files/arrays/files_install.sh"
     "source/files/arrays/files_logs.sh"
     "source/files/arrays/files_menu.sh"

scripts/source/files/generate_arrays.sh

@@ -111,15 +111,6 @@ EOF
                 esac
             fi
             
-            # Skip specific files for headscale folder
-            if [ "$folder_name" = "headscale" ]; then
-                case "$rel_path" in
-                    "headscale/tailscale/tailscale.sh")
-                        continue
-                        ;;
-                esac
-            fi
-            
             # Escape quotes and add to array
             echo "    \"$rel_path\"" >> "$array_file"
         done