[Partner Nodes] feat(Grok): add 1080p resolution to Grok Image node

[bigcat88]

Also we will switch from grok-imagine-video-1.5-preview to the grok-imagine-video-1.5 model ID. Second try.

API Node PR Checklist

Scope

• Is API Node Change

Pricing & Billing

• Need pricing update
• No pricing update

If Need pricing update:

• Metronome rate cards updated
• Auto‑billing tests updated and passing

QA

• QA done
• QA not required

Comms

• Informed Kosinkadink

[coderabbitai]

📝 Walkthrough

Walkthrough

The changes update GrokVideoNode in comfy_api_nodes/nodes_grok.py across four areas. The API model ID for grok-imagine-video-1.5 is corrected from a -preview variant to "grok-imagine-video-1.5". The resolution schema input gains 1080p as a selectable option with a tooltip noting it is exclusive to that model. The price_badge formula is revised to include 1080p-specific rate logic, an updated image cost calculation for the 1.5 model, and an inputs.image.connected-conditional total. Finally, execute gains a validation check that raises ValueError when 1080p is selected with any model other than grok-imagine-video-1.5.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title captures the main 1080p resolution addition, though it mislabels the node as Image instead of Video.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The description matches the changeset by mentioning the Grok model ID switch and pricing update.

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@comfy_api_nodes/nodes_grok.py`:
- Around line 573-578: The price badge logic in the Grok image/video pricing
expression is undercounting the mandatory 1.5 image input because it only adds
$imgCost when inputs.image is connected. Update the pricing calculation near the
widgets.resolution and $imgCost logic so grok-imagine-video-1.5 always includes
the image input cost in the displayed USD total, regardless of connection state,
while preserving the existing resolution/duration rate handling.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 44955d7 and c7f5744.

📒 Files selected for processing (1)

• comfy_api_nodes/nodes_grok.py