Signals: Refine results (sort, min relevance, tone, networks), Load more, CSV export

[ralyodio]

What

A Needle-style Refine results panel on /signals, the screen where leads from listening arrive. It filters the posts already loaded in the browser. Load more widens the list, then Export CSV downloads what's shown.

Control	Options
Sort	Most relevant (default) · Newest first · By network
Min relevance	Any match · Possible+ (≥0.4) · Relevant+ (≥0.6) · Very relevant (≥0.8, the feed's existing "High intent")
Tone	Any · Positive · Neutral · Negative (signals.sentiment, which listening sets from the post type)
Networks	one checkbox per network present, with counts. All networks are on by default

• API: GET /signals takes before=<timestamp|id> and returns next_cursor, which is null on the last page. The id breaks ties, so posts stamped with the same second are never skipped or repeated.
• Export: the CSV columns are network, name, summary, relevance, tone, type, posted_at, url and person_id. Cells starting with =, +, - or @ get a leading quote so a spreadsheet can't run them as formulas.
• Today page: fetchSignals() keeps its shape for Today, and the Signals page uses a new fetchSignalPage().

Verified

• New tests:
  • apps/web/lib/signal-filters.test.ts, 6 tests: sorts, tier floors, tone, networks and CSV.
  • apps/api/src/signals-feed.test.ts, 2 tests: the cursor walks 7 seeded signals (3 sharing one timestamp) 3 per page, each seen exactly once, and the last page has no cursor. A malformed cursor is ignored.
• Root tsc and apps/web tsc --noEmit pass, and prettier was applied.
• Not checked visually: the page needs a signed-in session against the API.

🤖 Generated with Claude Code