Email Outreach: Gmail API integration for send-on-confirm

[madhavcodez]

Feature

SecretAIRY generates personalized cold email drafts, but currently has no way to actually send them. The user must copy-paste into Gmail manually.

Desired Flow

1. AI generates personalized email draft (already works ✅)
2. User reviews and edits the draft in the dashboard
3. User clicks "Send" → email is sent via Gmail API
4. email_sent_at timestamp is recorded
5. Follow-up call is scheduled 24h after email send

Implementation Plan

• Google OAuth credentials already in .env (CLIENT_ID + CLIENT_SECRET)
• Need OAuth2 consent flow for Gmail send scope
• Store refresh token in DB
• POST /campaigns/{id}/send-email calls Gmail API
• Dashboard already has the "Send Email" button wired up

Current State

• ✅ Email draft generation (Gemini, personalized with research data)
• ✅ Dashboard edit + send button UI
• ❌ Gmail API OAuth flow
• ❌ Actual email sending
• ❌ Open/click tracking

Labels

feature, email, outreach