fix: call config.MustInit() before config.Load() so Viper reads env vars

Without MustInit(), viper.AutomaticEnv() is never called, so Viper
cannot read environment variables injected by K8s secrets (envFrom).
This caused DATABASE_URL to always appear empty in deployed services,
forcing them into standalone/in-memory mode even when a database was
provisioned.

os.Getenv() calls like JWT_SECRET worked fine (direct syscall).
Viper-backed reads like DATABASE_URL did not (require AutomaticEnv).

Added pkgconfig.MustInit() call at the top of main() in both the
service component template and the full-monorepo example-api.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/adapter/templates/templates/components/service/cmd/server/main.go.tmpl

@@ -24,6 +24,7 @@ import (
 	emailpkg "{{GO_MODULE}}/pkg/email"
 	"{{GO_MODULE}}/pkg/notify"
 	"{{GO_MODULE}}/pkg/queue"
+	pkgconfig "{{GO_MODULE}}/pkg/config"
 	"{{GO_MODULE}}/pkg/realtime"
 	"{{GO_MODULE}}/pkg/storage"
 	"{{GO_MODULE}}/pkg/textgen"
@@ -58,6 +59,13 @@ func main() {
 		os.Exit(0)
 	}
 
+	// Initialize viper with AutomaticEnv so Viper reads env vars injected by
+	// the platform (K8s secrets, envFrom). Must happen before any config reads.
+	pkgconfig.MustInit(pkgconfig.Options{
+		AppName:     "{{COMPONENT_NAME}}",
+		DefaultPort: {{PORT}},
+	})
+
 	// Load config
 	cfg := config.Load()