Gallery: add prune button (behold 100), webhook automation, shell_command

include/automations/snapshots_indkorsel.yaml

@@ -1,3 +1,16 @@
+- alias: 'Indkorsel: Slet gamle snapshots (behold 100)'
+  description: Køres via webhook fra galleriet – sletter alle undtagen de 100 nyeste snapshots og regenererer galleriet.
+  trigger:
+    - platform: webhook
+      webhook_id: indkorsel_prune_100
+      allowed_methods: [POST]
+      local_only: true
+  action:
+    - action: shell_command.indkorsel_prune_keep_100
+    - delay: '00:00:02'
+    - action: shell_command.indkorsel_generate_gallery
+  mode: single
+
 - alias: 'Snapshot ved person i indkorsel'
   description: >
     Gemmer et tidsstemplet snapshot + opdaterer latest.jpg + regenererer HTML-galleri,

include/shell_commands/indkorsel.yaml

@@ -1 +1,2 @@
 indkorsel_generate_gallery: "/usr/local/bin/docker exec homeassistant python3 /config/python_scripts/generate_indkorsel_gallery.py"
+indkorsel_prune_keep_100: "ls -1 /config/www/snapshots/indkorsel/*.jpg | grep -v '/latest.jpg$' | sort -r | tail -n +101 | xargs rm -f"