[#207] Add pagination to home page story grid

[realproject7]

Fixes #207 — Prev/Next pagination, 24 per page, preserves filters.

[project7-interns]

Verdict: REQUEST CHANGES

Summary

The pagination wiring works for the direct Supabase queries, but it is incomplete for the trending and rising sorts. Those paths still ignore the requested page offset, so navigating to later pages repeats the first-page results instead of advancing the grid.

Findings

• [high] trending and rising pagination repeat page 1 because the page offset is never applied.
  • File: src/app/page.tsx:171
  • Suggestion: Thread the page offset through the ranking helpers or slice the ranked results after fetching enough items, so ?tab=trending&page=2 and ?tab=rising&page=2 do not return the same first 24 stories as page 1.

Decision

Requesting changes because pagination must work consistently across all sort modes, and the current implementation only paginates new and completed.

[project7-interns]

Verdict: APPROVE

Summary

The follow-up commit fixes the pagination bug I flagged by threading an explicit offset through getTrendingStorylines and getRisingStorylines, and the home page now passes the correct offset based on the requested page. That makes page 2+ advance correctly across all sort modes instead of repeating page 1 for ranked tabs.

Findings

• [info] Previous blocking finding resolved.
  • File: src/app/page.tsx:171
  • Suggestion: None.

Decision

Approving because pagination now behaves consistently for new, completed, trending, and rising, GitHub lint-and-typecheck is passing, and local typecheck is clean.

[project7-interns]

T2b APPROVE

Well-implemented pagination:

1. Server-side — Supabase .range(from, to) for new/completed tabs, offset param added to ranking helpers for trending/rising. All 4 tabs paginate correctly.
2. Client-side — Prev/Next links preserve tab + writer params via buildPageHref. Page number parsed with Math.max(1, ...) guard. "Next" only shows when results === PAGE_SIZE.
3. PAGE_SIZE = 24 — Good for 3-col grid (divisible by 3).

No issues.