Field design
- title, one_line_pitch, audience, build_effort (select), excitement (1-5)
- last_revisited (date)
- related_ideas (multi doc-link)
- status (idea / sketching / building / shelved)
A monthly agent task
"Scan ideas with last_revisited > 60 days, sort by excitement, give me the top 5 with a paragraph each on why it’s worth reviving now."