docs: publish Tend Compose continuity evidence

Export the reviewed allowlisted snapshot from private source commit 07c1655921f21ee5e4fc4d85639d199e8867b17d. This records the Docker Compose activation, schema-compatible rollback, and stateful migration resource findings from Observatory Preview 19 dogfooding.

AI-Assisted: OpenAI Codex
Signed-off-by: Cole Speelman <crspeelman@gmail.com>

examples/server/receive-policy.json

@@ -0,0 +1,16 @@
+{
+  "schema_version": 1,
+  "config_root": "/etc/tend/services",
+  "incoming_root": "/var/lib/tend/incoming",
+  "shared_lock_file": "/run/lock/tend-deploy.lock",
+  "services": {
+    "docs-site": {
+      "config": "/etc/tend/services/docs-site.json",
+      "max_artifact_bytes": 134217728
+    },
+    "example-site": {
+      "config": "/etc/tend/services/example-site.json",
+      "max_artifact_bytes": 134217728
+    }
+  }
+}