feat(frontend)add derive-animation task post

[cqhasy]

Change Description

• Adds a per-animation derive button in the sprite asset tree, allowing users to select missing directions and submit a derive_animation generation task.
• Displays derived-animation tasks in the editor generation flow and treats their results as new animation candidates for review.

Implementation Approach

• Adds a direction-selection popover beside each generated animation; already occupied directions in the same animation group are excluded.
• Adds typed derive-animation request models, API client support, mutation handling, generated Core API typing, and generation-run resolution for derive_animation.
• Adds English and Chinese editor translations plus UI/API/workspace test coverage.
• The derive action is disabled for animations without generation metadata, when there are no missing directions, or while an animation request is pending.

Related Issue

Part of #345

Testing

• cd frontend && pnpm format:check - passed.
• cd frontend && pnpm lint - passed with one existing import(no-duplicates) warning in src/model/asset/record/types/asset-snapshot.ts.
• cd frontend && pnpm test - passed: 113 test files and 600 tests.
• cd frontend && pnpm build - passed (tsc -b && vite build).

Screenshots or Recordings

Not included.

Risks and Follow-ups

• This PR only adapts the frontend to submit and display derive_animation tasks. Output quality issues in the derivation pipeline, such as non-symmetric generated directions or occasional green edges, are outside this frontend change and should be addressed separately.

Checklist

• The PR is focused and does not include unrelated changes.
• Asset names, formats, dimensions, and metadata follow project conventions.
• Licensing and attribution information is included or unchanged as appropriate.
• Documentation or examples were updated when needed.

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Project	Deployment	Actions	Updated (UTC)
holonic-asset	Ready	Preview	Aug 28, 2026 6:33am

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
frontend	90.46% <100.00%> (-0.66%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...tures/asset-editor/AssetTree/sprite-asset-tree.tsx	73.13% <100.00%> (ø)
.../src/features/asset-editor/use-editor-workspace.ts	94.56% <100.00%> (+1.14%)	⬆️
...d/src/model/asset/content/sprite-content.mapper.ts	97.80% <100.00%> (+0.10%)	⬆️
frontend/src/model/asset/types/asset.ts	100.00% <ø> (ø)
...l/generation/animation/animation-generation.api.ts	100.00% <100.00%> (ø)
...generation/animation/types/animation-generation.ts	100.00% <100.00%> (ø)
...rontend/src/model/generation/run/generation.api.ts	95.33% <100.00%> (+0.06%)	⬆️

... and 1 file with indirect coverage changes

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[KurodaKayn]

@cqhasy enhance test cove

[fennoai]

Reviewed the complete fixed diff for the derive-animation flow, including direction-group filtering, request serialization, generation-run restoration, candidate merging, and editor review/apply behavior. The frontend request shape matches the Core derivation contract, and the changed paths are covered by the added tests.

Verification: repository diff checks passed. Automated frontend tests could not be rerun in this environment because the available Node.js is v20.20.2 while the configured pnpm 11.5.0 requires Node.js >=22.13 and imports node:sqlite.

View job run