Add cursor-based pagination with Page Token implementation#15

Draft

Copilot wants to merge 6 commits intomainfrom

copilot/add-page-token-implementation

Commits on Jan 28, 2026

Initial plan
Copilot
committed
Add cursor-based pagination infrastructure with HasCursorKey builder method

Copilot
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willysoft
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Add cursor pagination demo and comprehensive tests

Copilot
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willysoft
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Add cursor pagination documentation to README

Copilot
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willysoft
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Address code review feedback: improve error handling, add type support, and expand test coverage

Copilot
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willysoft
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Reorganize cursor pagination tests to follow project naming conventions

Copilot
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willysoft
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