manatee: Add schema

The household weekly plan at schema.ppp.pm: its module, certificate,
DNS record, backup and secrets. The link to puppy-tracker is prepared
but commented out until puppy-tracker with the integration feed is
deployed.

secrets/manatee/schema-invite-code.age

@@ -0,0 +1,7 @@
+age-encryption.org/v1
+-> ssh-ed25519 wkRvNA 73OdSBU5vi/uHFRBJRYCAaaMuT2xjv/k7Dk/lela3HQ
+SJFTTuaohubRB9tNtVGCJPlvQaeRfLUYnGl4oZWG/hI
+-> ssh-ed25519 +oNaHQ TWvVn/YL6dsUckjN/zkOA5Cgl63agqZSQi9j77GOhm4
+ay+p2r70U5++sG2KlOkqvo4ATKbSb+mZ14/y4XxeYaQ
+--- MhsKOuWdZL0xNU+ImVmQ+vRbvRK6Cgv8kjYr4Cby958
+#俸V
{ｧＮc3ﾈ錯pNWfﾃ汕�ﾉ/�ｧL頷ﾊﾔnｻ薰�ﾔｨ<#游ﾄ

secrets/manatee/schema-puppy-token.age

@@ -0,0 +1,7 @@
+age-encryption.org/v1
+-> ssh-ed25519 wkRvNA Bd21tyO+Rh+Zhb56/xzRCHAfkdggoRUp36E1e8eK+kk
+hDd0ZJ8XQyN+Py9QxSP+4jXKa2MzWSM7OkU2huLNDDI
+-> ssh-ed25519 +oNaHQ HaMjqDzPBUDwMDH0190pVxColLLVO4FTq0hZk9atiWE
+WZvpvJ+IU9GV0n+fE0DN1gmLBfkBE65s2e0g1/yjTa8
+--- ARKUYPu8vtFDOvtGVKzWlBskrxGoh+6muz3eA6tptMQ
+$ÙÔ8ÃÃ!!Ül|wÌöiø½Ç ºdaõeE&ˆÈ\w¢¢ÿ–TåÞµ_‚zÛš€q“«)rZŸk/E—9¹]Eq8ºfEî�ã�úA`	tÉ%Æ>Á:Â1␍