Fix: HTTP status codes from 422 UNPROCESSABLE ENTITY to 422 UNPROCESSABLE CONTENT

[Misha-Shvets]

Актуализировал status коды + фикс бага с ДНС ошибкой

[milov-dmitriy]

в файле tests/test_api/test_network/test_router.py есть 2 места где используется магическое число 422
давай тоже заменим на корректный статус код

[Copilot]

Pull request overview

This PR updates HTTP status codes from the deprecated 422 UNPROCESSABLE_ENTITY to the standardized 422 UNPROCESSABLE_CONTENT across the codebase, and fixes a DNS-related bug by moving the DNSNotImplementedError exception class to a more appropriate location.

Changes:

• Updated all occurrences of HTTP_422_UNPROCESSABLE_ENTITY to HTTP_422_UNPROCESSABLE_CONTENT in test files and API routers
• Refactored DNSNotImplementedError by moving it from app/ldap_protocol/dns/base.py to the exceptions module and importing it where needed
• Updated the interface subproject commit reference

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/test_api/test_ldap_schema/test_object_class_router_datasets.py	Updated expected status code in test dataset
tests/test_api/test_ldap_schema/test_entity_type_router.py	Updated status code assertion in test case
tests/test_api/test_ldap_schema/test_attribute_type_router_datasets.py	Updated expected status code in test dataset
tests/test_api/test_dhcp/test_router.py	Updated status code assertions across multiple DHCP test cases
tests/test_api/test_auth/test_router.py	Updated status code assertions in authentication test cases
interface	Updated subproject commit reference
app/ldap_protocol/dns/base.py	Moved DNSNotImplementedError to exceptions module and added import
app/api/shadow/router.py	Updated error mapping for PasswordPolicyError
app/api/network/utils.py	Updated HTTP exception status code
app/api/network/router.py	Updated error mappings for network policy errors
app/api/main/dns_router.py	Updated error mapping for DNSSetupError
app/api/dhcp/router.py	Updated error mapping for DHCPValidatonError
app/api/auth/router_mfa.py	Updated error mapping for InvalidCredentialsError
app/api/auth/router_auth.py	Updated error mappings for authentication-related errors

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