chore: Various QoL updates of nodes display names, descriptions and categories (CORE-190, CORE-191)

[alexisrolland]

This pull request reorganizes the categorization of several nodes to improve clarity and consistency in the contextual menu. The main changes involve moving nodes from subcategories to more general categories, and updating display names for clarity.

Category reorganization for samplers, schedulers, and sigmas:

• Changed the category field for all sampler nodes (e.g., SamplerLCMUpscale, SamplerARVideo, and multiple classes in nodes_custom_sampler.py) from sampling/custom_sampling/samplers to sampling/samplers for better organization and discoverability. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15]
• Changed the category field for all scheduler nodes (e.g., AlignYourStepsScheduler, BasicScheduler, KarrasScheduler, etc.) from sampling/custom_sampling/schedulers to sampling/schedulers. [1] [2] [3] [4] [5] [6] [7] [8] [9]
• Updated the category for all sigma-related nodes from sampling/custom_sampling/sigmas to sampling/sigmas for consistency. [1] [2] [3] [4] [5] [6]

Image processing node improvements:

• Renamed category image/preprocessors and image/postprocessors to group them into a single category image/filters.
• Changed the category of the Canny node from image/preprocessors to image/filters, and updated its display_name from "Canny" to "Detect Canny Edges" for improved clarity and user searchability.

Mask category

• Moved mask category under image category since mask are always used in combination with images.

Save Image Nodes

• Moved Save Animated WEBP and Save Animated PNG nodes to the root of the image category, for consistency with other save nodes.

These changes help standardize node organization, making it easier for users and developers to find and maintain nodes in the codebase.

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📝 Walkthrough

Walkthrough

This PR updates only node UI schema metadata across many files: nodes are moved from custom or generic groups (e.g., sampling/custom_sampling/*, mask, detection, image/postprocessing) into standardized categories (sampling/schedulers, sampling/samplers, sampling/guiders, sampling/sigmas, sampling/noise, image/filters, image/mask, image/detection, image, training/dataset). Several nodes received or had display_name or DESCRIPTION strings adjusted. No execution logic, public signatures, algorithms, or exported node lists were modified.

🚥 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 accurately summarizes the PR's main objective of reorganizing node categories and updating display names/descriptions for improved UX.
Description check	✅ Passed	The description is comprehensive and directly related to the changeset, explaining the category reorganizations, display name updates, and improvements to node organization.
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.

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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_extras/nodes_mask.py`:
- Around line 198-200: The node schema was renamed by changing node_id from
"SolidMask" to "CreateSolidMask", which breaks backward compatibility; restore
node_id to "SolidMask" and keep the new UI label by setting display_name="Create
Solid Mask" while leaving node_id="SolidMask" unchanged (update wherever the
node is defined—look for the schema that currently lists
node_id="CreateSolidMask" and display_name="Create Solid Mask" and swap to
node_id="SolidMask" with display_name="Create Solid Mask").

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Fix all unresolved CodeRabbit comments on this PR:

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📥 Commits

Reviewing files that changed from the base of the PR and between dabfe73 and 9479c1e.

📒 Files selected for processing (20)

• comfy_extras/nodes_advanced_samplers.py
• comfy_extras/nodes_align_your_steps.py
• comfy_extras/nodes_ar_video.py
• comfy_extras/nodes_canny.py
• comfy_extras/nodes_custom_sampler.py
• comfy_extras/nodes_flux.py
• comfy_extras/nodes_gits.py
• comfy_extras/nodes_images.py
• comfy_extras/nodes_lt.py
• comfy_extras/nodes_mask.py
• comfy_extras/nodes_morphology.py
• comfy_extras/nodes_nop.py
• comfy_extras/nodes_optimalsteps.py
• comfy_extras/nodes_post_processing.py
• comfy_extras/nodes_rtdetr.py
• comfy_extras/nodes_sam3.py
• comfy_extras/nodes_sdpose.py
• comfy_extras/nodes_video_model.py
• comfy_extras/nodes_void.py
• nodes.py

[drozbay]

Awesome stuff! Just want to note that it's very hard to test any of this because the actual display names on the frontend follow the frontend repo's locale names, even for English. They won't change until the frontend repo is updated after this is merged.

[alexisrolland]

@drozbay you're correct, I noticed this while doing my tests as well. The frontend has an automated process to localize nodes names so that's why they're not immediately visible when testing. I don't have a better option right now. I am just using this command line to recheck once in a while before frontend gets updated in stable: python main.py --front-end-version Comfy-Org/ComfyUI_frontend@latest --enable-manager