fix: use config.IMAGE_TIMEOUT for image URL download

[Copilot]

IMAGE_TIMEOUT was applied to the image generation POST but reverted to a hardcoded 60s for the subsequent URL download, silently ignoring user configuration.

Changes

• novelforge/llm/image.py: Replace timeout=60 with timeout=config.IMAGE_TIMEOUT in the requests.get download call

# Before
img_resp = requests.get(image_url, timeout=60, stream=True)

# After
img_resp = requests.get(image_url, timeout=config.IMAGE_TIMEOUT, stream=True)

• tests/test_image_download_timeout.py: New tests asserting the timeout kwarg passed to requests.get matches config.IMAGE_TIMEOUT for custom values (120s, 300s)

[Copilot]

Pull request overview

Fixes image URL download to respect the user-configured config.IMAGE_TIMEOUT (previously hardcoded to 60s), and adds regression tests to ensure the timeout value is propagated into the requests.get call.

Changes:

• Use config.IMAGE_TIMEOUT for the image download (requests.get) timeout in call_image_api.
• Add tests verifying requests.get(..., timeout=...) matches config.IMAGE_TIMEOUT for custom values (120, 300).

Reviewed changes

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

File	Description
novelforge/llm/image.py	Applies config.IMAGE_TIMEOUT to the image URL download request.
tests/test_image_download_timeout.py	Adds regression tests asserting download timeout uses config.IMAGE_TIMEOUT.

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[Copilot]

base64 and json are imported but not used in this test module. Removing unused imports will keep the tests clean and avoid failing future linting/static checks if introduced.

Suggested change

	import base64
	import json

[Copilot]

test_download_timeout_reflects_updated_config accesses get_calls[0] without first asserting that requests.get was called. Adding an explicit len(get_calls) == 1 assertion (as in the previous test) will produce a clearer failure if the download path changes.