feat: check if org exists (#480)

* feat: check if org exists

* feat: check if org exists

* Update internal/authz/repository/eventsourcing/eventstore/token_verifier.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* fix: err handling

Co-authored-by: Silvan <silvan.reusser@gmail.com>

migrations/cockroach/V1.6__authz_orgs.sql

@@ -0,0 +1,17 @@
+BEGIN;
+
+CREATE TABLE authz.orgs (
+    id TEXT,
+    creation_date TIMESTAMPTZ,
+    change_date TIMESTAMPTZ,
+    resource_owner TEXT,
+    org_state SMALLINT,
+    sequence BIGINT,
+
+    domain TEXT,
+    name TEXT,
+
+    PRIMARY KEY (id)
+);
+
+COMMIT;