chore: remove remaining QuoteForge/qfs references

internal/appstate/path.go

@@ -9,8 +9,8 @@ import (
 )
 
 const (
-	appDirName  = "QuoteForge"
-	defaultDB   = "qfs.db"
+	appDirName  = "PriceForge"
+	defaultDB   = "pfs.db"
 	defaultCfg  = "config.yaml"
 	envDBPath   = "QFS_DB_PATH"
 	envStateDir = "QFS_STATE_DIR"
@@ -149,13 +149,13 @@ func defaultStateDir() (string, error) {
 		return filepath.Join(base, appDirName), nil
 	default:
 		if xdgState := os.Getenv("XDG_STATE_HOME"); xdgState != "" {
-			return filepath.Join(xdgState, "quoteforge"), nil
+			return filepath.Join(xdgState, "priceforge"), nil
 		}
 		home, err := os.UserHomeDir()
 		if err != nil {
 			return "", fmt.Errorf("resolving user home dir: %w", err)
 		}
-		return filepath.Join(home, ".local", "state", "quoteforge"), nil
+		return filepath.Join(home, ".local", "state", "priceforge"), nil
 	}
 }
 

internal/handlers/sync_readiness_test.go

@@ -17,7 +17,7 @@ func TestSyncReadinessOfflineBlocked(t *testing.T) {
 	gin.SetMode(gin.TestMode)
 
 	dir := t.TempDir()
-	local, err := localdb.New(filepath.Join(dir, "qfs.db"))
+	local, err := localdb.New(filepath.Join(dir, "pfs.db"))
 	if err != nil {
 		t.Fatalf("init local db: %v", err)
 	}

internal/localdb/encryption.go

@@ -17,7 +17,7 @@ func getEncryptionKey() []byte {
 	if key == "" {
 		// Fallback to a machine-based key (hostname + fixed salt)
 		hostname, _ := os.Hostname()
-		key = hostname + "quoteforge-salt-2024"
+		key = hostname + "priceforge-salt-2024"
 	}
 	// Hash to get exactly 32 bytes for AES-256
 	hash := sha256.Sum256([]byte(key))

internal/models/models.go

@@ -23,7 +23,7 @@ func AllModels() []interface{} {
 	}
 }
 
-// Migrate runs auto-migration for all QuoteForge tables
+// Migrate runs auto-migration for all PriceForge tables
 // Handles MySQL constraint errors gracefully for existing tables
 func Migrate(db *gorm.DB) error {
 	for _, model := range AllModels() {