fix: flash backup integration with Unraid Connect config (#1448)

read `username` from connect.json & drop minigraphConnected check

---
- To see the specific tasks where the Asana app for GitHub is being
used, see below:
  - https://app.asana.com/0/0/1210592838407162

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Bug Fixes**
* Improved reliability of configuration file handling for backup and API
features.
* Resolved potential false negatives when checking connection status by
updating connection verification logic.

* **Chores**
  * Centralized configuration paths for easier future updates.
  * Minor formatting improvements for better readability.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

plugin/source/dynamix.unraid.net/etc/rc.d/rc.flash_backup

@@ -2,6 +2,10 @@
 # This file is /etc/rc.d/rc.flash_backup
 # use at queue "f" for flash backup
 scripts_dir="/usr/local/share/dynamix.unraid.net/scripts"
+# This loads the API_CONFIG_HOME variable
+# shellcheck source=../usr/local/share/dynamix.unraid.net/scripts/api_utils.sh
+source "$scripts_dir/api_utils.sh"
+
 QUEUE=" -q f "
 TASKNAME="/etc/rc.d/rc.flash_backup watch"
 TASKACTION="/usr/local/emhttp/plugins/dynamix.my.servers/scripts/UpdateFlashBackup update"
@@ -9,8 +13,8 @@ last=$(date +%s)
 # set GIT_OPTIONAL_LOCKS=0 globally to reduce/eliminate writes to /boot
 export GIT_OPTIONAL_LOCKS=0
 
-FAST=1  #  1 second delay when waiting for git
-SLOW=10 # 10 second delay when waiting for git
+FAST=1          #  1 second delay when waiting for git
+SLOW=10         # 10 second delay when waiting for git
 THIRTYMINS=1800 # 30 minutes is 1800 seconds
 # wait for existing git commands to complete
 # $1 is the time in seconds to sleep when waiting. SLOW or FAST
@@ -162,20 +166,22 @@ _enabled() {
   return 1
 }
 _connected() {
-  CFG=/var/local/emhttp/myservers.cfg
+  CFG=$API_CONFIG_HOME/connect.json
   [[ ! -f "${CFG}" ]] && return 1
-  # shellcheck disable=SC1090
-  source <(sed -nr '/\[remote\]/,/\[/{/username/p}' "${CFG}" 2>/dev/null)
-  # ensure signed in
+
+  username=$(jq -r '.username // empty' "${CFG}" 2>/dev/null)
   if [ -z "${username}" ]; then
     return 1
   fi
+  # the minigraph status is no longer synced to the connect config file
+  # to avoid a false negative, we'll omit this check for now.
+  #
   # shellcheck disable=SC1090
-  source <(sed -nr '/\[connectionStatus\]/,/\[/{/minigraph/p}' "${CFG}" 2>/dev/null)
-  # ensure connected
-  if [[ -z "${minigraph}" || "${minigraph}" != "CONNECTED" ]]; then
-    return 1
-  fi
+  # source <(sed -nr '/\[connectionStatus\]/,/\[/{/minigraph/p}' "${CFG}" 2>/dev/null)
+  # # ensure connected
+  # if [[ -z "${minigraph}" || "${minigraph}" != "CONNECTED" ]]; then
+  #   return 1
+  # fi
   return 0
 }
 _haserror() {

plugin/source/dynamix.unraid.net/usr/local/share/dynamix.unraid.net/scripts/api_utils.sh

@@ -4,6 +4,7 @@
 
 # Default paths
 CONFIG_FILE="/usr/local/share/dynamix.unraid.net/config/vendor_archive.json"
+API_CONFIG_HOME="/boot/config/plugins/dynamix.my.servers/configs"
 
 # Get API version from config file
 # Returns the API version string or empty if not found
@@ -66,7 +67,7 @@ get_archive_information() {
 # Returns 0 if enabled, 1 if not enabled or error
 is_api_plugin_enabled() {
   local plugin_name="$1"
-  local api_config_path="/boot/config/plugins/dynamix.my.servers/configs/api.json"
+  local api_config_path="$API_CONFIG_HOME/api.json"
 
   # Check if plugin name is provided
   if [ -z "$plugin_name" ]; then