Simplify error handling and move response checks to a response_handler module

[iMicknl]

Breaking change

• OverkizClient.check_response was removed and replaced with the module-level pyoverkiz.response_handler.check_response

[Copilot]

Pull request overview

This PR centralizes HTTP response validation by moving Overkiz API error-to-exception mapping out of OverkizClient into a dedicated response_handler module, and expands test coverage with additional cloud error fixtures.

Changes:

• Added pyoverkiz.response_handler.check_response with rule-based dispatch for mapping API error payloads to specific exceptions.
• Updated OverkizClient request helpers to call the shared check_response function instead of a class staticmethod.
• Extended tests/test_client.py and added multiple new cloud exception fixtures to validate additional error mappings and fallbacks.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pyoverkiz/client.py	Replaces internal response checking with calls to the new shared check_response function (and removes the previous staticmethod).
pyoverkiz/response_handler.py	Introduces centralized response checking and exception dispatch logic.
tests/test_client.py	Updates tests to call the shared response handler and adds new exception cases.
tests/fixtures/exceptions/cloud/exec-queue-full.json	New fixture to validate EXEC_QUEUE_FULL → ExecutionQueueFullException.
tests/fixtures/exceptions/cloud/invalid-event-listener-id.json	New fixture to validate invalid event listener ID mapping.
tests/fixtures/exceptions/cloud/invalid-token.json	New fixture to validate invalid token mapping.
tests/fixtures/exceptions/cloud/missing-api-key.json	New fixture to validate missing API key mapping.
tests/fixtures/exceptions/cloud/no-such-command.json	New fixture to validate unsupported operation / invalid command mapping.
tests/fixtures/exceptions/cloud/no-such-resource.json	New fixture to validate invalid API call / no-such-resource mapping.
tests/fixtures/exceptions/cloud/not-such-token.json	New fixture to validate “not such token” mapping.
tests/fixtures/exceptions/cloud/session-and-bearer.json	New fixture to validate session+bearing token conflict mapping.
tests/fixtures/exceptions/cloud/too-many-attempts-banned.json	New fixture to validate temporary ban mapping.
tests/fixtures/exceptions/cloud/unknown-auth-error.json	New fixture to validate authentication error fallback behavior.
tests/fixtures/exceptions/cloud/unknown-resource-access-denied.json	New fixture to validate resource access denied fallback behavior.
tests/fixtures/exceptions/cloud/unknown-user-account.json	New fixture to validate unknown user mapping.

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