Fix 1-based page() offset in paginate.js

Plan FIX S · Fix 1-based page() offset in paginate.js

Steps

1. Add a failing test in paginate.test.js asserting page([1, 2, 3, 4], 1, 2) deepEquals [1, 2]
2. In paginate.js change the slice to use (n - 1) * size as the start offset: items.slice((n - 1) * size, n * size)
3. Run npm test and confirm both the first-page and second-page tests pass

Checks

• PASS page(items, 1, size) returns the first `size` itemsnode -e "const {page}=require('./paginate');require('assert').deepStrictEqual(page([1,2,3,4],1,2),[1,2])" (failed before the work)
• PASS page 2 returns the next items, and the full test suite passesnpm test (failed before the work)

Changed

• paginate.test.js +4
• paginate.js +1 −1

Closed T-0001 closed; committed f8d6564 (2 files). Undo: git revert --no-edit f8d6564 (tokens: 66453 in, 645 out)

3 worker turns · 67k tokens · 58s · replay it: fm code tui --events demo/examples/javascript.jsonl · the case study