chore: rework plugin readmes, json changelogs and standalone repo setup

plugins/automations/CHANGELOG.json

@@ -0,0 +1,34 @@
+{
+  "$schema": "https://raw.githubusercontent.com/Termix-SSH/Termix/main/packages/plugin-sdk/schema/changelog.schema.json",
+  "releases": [
+    {
+      "version": "1.0.0",
+      "changes": [
+        {
+          "type": "added",
+          "text": "Triggers for metrics, hosts going up or down, health checks, schedules, container events and webhooks"
+        },
+        {
+          "type": "added",
+          "text": "Steps that run commands and snippets, control containers and tunnels, wake hosts, call URLs and send alerts"
+        },
+        {
+          "type": "added",
+          "text": "Conditions, waits and variables for more complex flows"
+        },
+        {
+          "type": "added",
+          "text": "Run on one host, a fleet or every host"
+        },
+        {
+          "type": "added",
+          "text": "Test runs and a history of every run"
+        },
+        {
+          "type": "added",
+          "text": "Maintenance windows that pause automations while you work on a host"
+        }
+      ]
+    }
+  ]
+}