25 lines
850 B
Markdown
25 lines
850 B
Markdown
# US01-05 — Generate and Serve Managed Thumbnails
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Epic: [E01](../E01-shared-identity-inventory.md)
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As a reviewer, I want safe, correctly oriented previews so I can compare photos without
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exposing arbitrary filesystem paths.
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## Acceptance criteria
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- Donor decode, orientation, resize, and HEIC behavior is reused where compatible.
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- Thumbnails are requested by asset ID, cached atomically, quota-managed, and
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invalidated when source identity changes.
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- Corrupt, oversized, missing, and unsupported inputs produce bounded typed errors.
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- Requests cannot escape configured roots or access excluded paths.
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## Automated tests
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- Golden tests assert orientation, dimensions, transparency handling, and cache keys.
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- Integration tests cover concurrent generation, corruption, invalidation, eviction,
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and path attacks.
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## Dependencies
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- US01-03
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