refactor: restructure DatasetCard component for improved readability and maintainability

[CodingOnStar]

Summary

refactor: restructure DatasetCard component for improved readability and maintainability

• Split DatasetCard into multiple subcomponents: CornerLabels, DatasetCardHeader, DatasetCardFooter, DatasetCardModals, Description, TagArea, and OperationsPopover.
• Introduced a custom hook, useDatasetCardState, to manage state and modal logic.
• Enhanced tag management and modal handling for renaming and deletion.
• Improved code organization and reduced complexity in the main DatasetCard component.

Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran make lint and make type-check (backend) and cd web && npx lint-staged (frontend) to appease the lint gods

[gemini-code-assist]

Summary of Changes

Hello @CodingOnStar, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on a significant refactoring of the DatasetCard component. The primary goal is to improve the component's structure, readability, and maintainability by breaking it down into smaller, more focused subcomponents and centralizing its state management logic using a custom React hook. This change streamlines the component's responsibilities and enhances its modularity.

Highlights

• Component Decomposition: The DatasetCard component has been broken down into several smaller, specialized subcomponents: CornerLabels, DatasetCardHeader, DatasetCardFooter, DatasetCardModals, Description, TagArea, and OperationsPopover.
• Centralized State Management: A new custom React hook, useDatasetCardState, has been introduced to centralize and manage the state and modal logic previously scattered within the main DatasetCard component.
• Improved Modals and Tag Handling: The handling of tags and various modals (like rename and delete confirmation) has been enhanced and encapsulated within the new subcomponents and custom hook, leading to a cleaner implementation.
• Code Organization and Maintainability: The refactoring significantly improves the overall code organization and reduces the complexity of the main DatasetCard component, making it more readable and easier to maintain.

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[gemini-code-assist]

Code Review

This pull request is an excellent refactoring of the DatasetCard component. By splitting it into smaller, focused subcomponents and extracting state management into the useDatasetCardState custom hook, you've significantly improved the code's readability, maintainability, and organization. The new structure is much cleaner and follows React best practices. I've left a few suggestions to further enhance code clarity and robustness. Great work on this cleanup!

[Copilot]

Pull request overview

This PR refactors the DatasetCard component to improve code organization and maintainability by breaking it down into smaller, focused subcomponents and extracting state management logic into a custom hook.

• Split the monolithic component into 7 focused subcomponents for better separation of concerns
• Introduced useDatasetCardState hook to centralize state and modal management
• Created new service hooks (useCheckDatasetUsage, useDeleteDataset) using React Query for better data fetching patterns

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
web/service/use-dataset-card.ts	New service file with React Query mutations for dataset operations
web/app/components/datasets/list/dataset-card/index.tsx	Refactored main component to compose subcomponents and use the new hook
web/app/components/datasets/list/dataset-card/hooks/use-dataset-card-state.ts	New custom hook managing state, modals, and dataset operations
web/app/components/datasets/list/dataset-card/components/tag-area.tsx	Extracted tag selector area into standalone component
web/app/components/datasets/list/dataset-card/components/operations-popover.tsx	Extracted operations menu popover into standalone component
web/app/components/datasets/list/dataset-card/components/description.tsx	Extracted description display into standalone component
web/app/components/datasets/list/dataset-card/components/dataset-card-modals.tsx	Extracted modal rendering logic into standalone component
web/app/components/datasets/list/dataset-card/components/dataset-card-header.tsx	Extracted header section with icon and metadata into standalone component
web/app/components/datasets/list/dataset-card/components/dataset-card-footer.tsx	Extracted footer with document counts and timestamps into standalone component
web/app/components/datasets/list/dataset-card/components/corner-labels.tsx	Extracted corner labels (unavailable/pipeline) into standalone component

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[WTW0313]

LGTM