feat: initial KosmoConnect platform v0.1

Includes:
- Backend services: ingestion (:8001), weather API (:8002),
  gateway (:8003), billing (:8004) with BTCPay integration
- Shared asyncpg pool, TimescaleDB hypertable, Redis, Mosquitto MQTT
- React frontend: Dashboard (MapLibre) and Messaging (chat UI)
- Bridge daemon for Pi + Meshtastic (Serial/TCP T-Deck support)
- Production Docker Compose, Nginx reverse proxy, ops scripts
- DEPLOY.md with step-by-step deployment guide

backend/migrations/002_seed_test_users.sql

@@ -0,0 +1,20 @@
+-- Seed test users and subscriptions for local gateway development
+-- Run manually when setting up a fresh dev environment
+
+INSERT INTO users (id, email)
+VALUES
+    ('11111111-1111-1111-1111-111111111111', 'test@kosmoconnect.local'),
+    ('22222222-2222-2222-2222-222222222222', 'guardian@kosmoconnect.local')
+ON CONFLICT (id) DO NOTHING;
+
+INSERT INTO subscriptions (id, user_id, plan_type, message_quota, valid_from, valid_until, is_active)
+VALUES
+    ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', '11111111-1111-1111-1111-111111111111', 'wanderer', 50, NOW(), NOW() + INTERVAL '1 year', true),
+    ('bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb', '22222222-2222-2222-2222-222222222222', 'guardian', 500, NOW(), NOW() + INTERVAL '1 year', true)
+ON CONFLICT DO NOTHING;
+
+INSERT INTO allowed_nodes (id, user_id, mesh_node_id, nickname)
+VALUES
+    ('cccccccc-cccc-cccc-cccc-cccccccccccc', '22222222-2222-2222-2222-222222222222', '!a1b2c3d4', 'Base Camp'),
+    ('dddddddd-dddd-dddd-dddd-dddddddddddd', '22222222-2222-2222-2222-222222222222', '!b2c3d4e5', 'Lookout')
+ON CONFLICT DO NOTHING;