add company domain, models, route

api/application/contracts/company/company_request.py

@@ -0,0 +1,6 @@
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True)
+class CompanyByOwnerEmail:
+    email: str

api/application/contracts/company/company_response.py

@@ -0,0 +1,7 @@
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True)
+class CompanyBaseResponse:
+    name: str
+    email: str