Lightweight sales CRM

Build a lightweight CRM for a small sales team (2-10 reps).

Core features:
1. Contacts + companies with owner, tags, notes
2. Pipeline board (drag between stages), deal value + close date
3. Activity timeline (calls, emails logged)
4. Weekly forecast dashboard

Data: contacts, companies, deals, activities, users.
Must-haves: RLS by team/owner, CSV import, email BCC-to-log.