Add containers used by MindLyst web API routes to platform-service
cosmos-init so the shared database has a single authoritative registry:
share_cards, notification_log, analytics_events, brain_packs,
chat_sessions, ab_experiments, waitlist_entries, email_captures,
engagement_campaigns, context_triggers, monitoring_reports,
nudge_state, triage_retries
Note: 'referrals' is intentionally skipped — the growth module already
registers it with /id partition key, but MindLyst uses /userId. This
partition key mismatch requires a separate data migration to reconcile.
All 1141 platform-service tests pass.
1b2a5d5483