added new exchanges system

database/postgres/init/03-initial-data.sql

@@ -0,0 +1,23 @@
+-- Insert initial reference data
+\c trading_bot;
+
+-- Insert basic exchanges to start with
+INSERT INTO exchanges (code, name, country, currency) VALUES
+    ('NASDAQ', 'NASDAQ Stock Market', 'US', 'USD'),
+    ('NYSE', 'New York Stock Exchange', 'US', 'USD'),
+    ('TSX', 'Toronto Stock Exchange', 'CA', 'CAD'),
+    ('LSE', 'London Stock Exchange', 'GB', 'GBP'),
+    ('CME', 'Chicago Mercantile Exchange', 'US', 'USD')
+ON CONFLICT (code) DO NOTHING;
+
+-- Insert initial sync status records for QM provider
+INSERT INTO sync_status (provider, data_type) VALUES
+    ('qm', 'symbols'),
+    ('qm', 'exchanges')
+ON CONFLICT (provider, data_type) DO NOTHING;
+
+-- Show what we created
+SELECT 'Database setup complete. Tables created:' as status;
+SELECT table_name FROM information_schema.tables 
+WHERE table_schema = 'public' 
+ORDER BY table_name;