log: silence 'service config not found' on per-rec lookup (closes #263)

internal/config/recommendation_overrides.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"context"
+	"errors"
 	"fmt"
 )
 
@@ -48,6 +49,10 @@ func (c *globalConfigCache) lookup(ctx context.Context, store AccountConfigReade
 	}
 	fetched, err := store.GetServiceConfig(ctx, provider, service)
 	if err != nil {
+		if errors.Is(err, ErrNotFound) {
+			c.missing[k] = true
+			return nil, nil
+		}
 		return nil, fmt.Errorf("get service config %s/%s: %w", provider, service, err)
 	}
 	if fetched == nil {

internal/config/store_postgres.go

@@ -252,7 +252,7 @@ func (s *PostgresStore) GetServiceConfig(ctx context.Context, provider, service
 
 	if err != nil {
 		if err == pgx.ErrNoRows {
-			return nil, fmt.Errorf("service config not found for %s:%s", provider, service)
+			return nil, fmt.Errorf("service config not found for %s:%s: %w", provider, service, ErrNotFound)
 		}
 		return nil, fmt.Errorf("failed to get service config: %w", err)
 	}

internal/config/store_postgres_mock_test.go

@@ -5,6 +5,7 @@ import (
 	"database/sql"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"testing"
 	"time"
 
@@ -130,7 +131,7 @@ func (s *testablePostgresStore) GetServiceConfig(ctx context.Context, provider,
 
 	if err != nil {
 		if err == pgx.ErrNoRows {
-			return nil, errors.New("service config not found")
+			return nil, fmt.Errorf("service config not found for %s:%s: %w", provider, service, ErrNotFound)
 		}
 		return nil, err
 	}