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>

internal/deploy/lock_other.go

@@ -0,0 +1,14 @@
+//go:build !linux
+
+// SPDX-License-Identifier: AGPL-3.0-only
+
+package deploy
+
+import "errors"
+
+type fileLock struct{}
+
+func acquireLock(string) (*fileLock, error) {
+	return nil, errors.New("deployment mutations require Linux")
+}
+func (*fileLock) Close() error { return nil }