Enhance PocketBase workflow; fix installer scripts

Workflow: add push trigger for main branch on json/*.json and update the "Get JSON file for script" step to handle both workflow_dispatch and push events. The step now collects changed json/*.json files, validates each has a .slug with jq, ignores metadata/update-apps.json/versions.json, writes changed_app_jsons.txt, and sets a count output for downstream steps.

Installer & ct scripts: normalize indentation/formatting, ensure aliases.json and plugin-settings.json are initialized as {} and repos.json as [] when missing, and add missing trailing newlines. These changes improve robustness and shellcheck friendliness and make the workflow respond to direct pushes of app JSON files.

install/degoog-install.sh

@@ -15,8 +15,8 @@ update_os
 
 msg_info "Installing Dependencies"
 $STD apt install -y \
-	git \
-	unzip
+  git \
+  unzip
 msg_ok "Installed Dependencies"
 
 msg_info "Installing Bun"
@@ -44,19 +44,19 @@ DEGOOG_PLUGIN_SETTINGS_FILE=/opt/degoog/data/plugin-settings.json
 EOF
 
 if [[ ! -f /opt/degoog/data/aliases.json ]]; then
-	cat <<EOF >/opt/degoog/data/aliases.json
+  cat <<EOF >/opt/degoog/data/aliases.json
 {}
 EOF
 fi
 
 if [[ ! -f /opt/degoog/data/plugin-settings.json ]]; then
-	cat <<EOF >/opt/degoog/data/plugin-settings.json
+  cat <<EOF >/opt/degoog/data/plugin-settings.json
 {}
 EOF
 fi
 
 if [[ ! -f /opt/degoog/data/repos.json ]]; then
-	cat <<EOF >/opt/degoog/data/repos.json
+  cat <<EOF >/opt/degoog/data/repos.json
 []
 EOF
 fi
@@ -85,4 +85,4 @@ msg_ok "Created Service"
 
 motd_ssh
 customize
-cleanup_lxc
+cleanup_lxc