Restore credentials in appsettings per owner decision

The committed connection strings, EmailSettings and seed-admin password are
intentional configuration for this project, not a bug. docker-compose no
longer requires env vars; deployment works exactly as before. The seeder
stays config-driven (SeedAdmin block now committed), and env-var overrides
remain available if ever wanted. bug-fixes.md updated to reclassify #15/#16.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/SportsDivision.Web/appsettings.Production.json

@@ -5,5 +5,13 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "ConnectionStrings": {
+    "DefaultConnection": "Host=74.50.64.180;Port=5432;Database=sportsdivision_db;Username=postgres;Password=rG4eX5vU8kD4jY5k"
+  },
+  "EmailSettings": {
+    "GmailEmail": "pcgurudm@gmail.com",
+    "GmailPassword": "bbux tqjo lubq utss",
+    "DisplayName": "Sports Division"
+  }
 }