Implement SQLite database persistence for instance management

pkg/manager/operations_test.go

@@ -3,10 +3,12 @@ package manager_test
 import (
 	"llamactl/pkg/backends"
 	"llamactl/pkg/config"
+	"llamactl/pkg/database"
 	"llamactl/pkg/instance"
 	"llamactl/pkg/manager"
 	"strings"
 	"testing"
+	"time"
 )
 
 func TestCreateInstance_FailsWithDuplicateName(t *testing.T) {
@@ -49,10 +51,28 @@ func TestCreateInstance_FailsWhenMaxInstancesReached(t *testing.T) {
 			MaxInstances:         1, // Very low limit for testing
 			TimeoutCheckInterval: 5,
 		},
+		Database: config.DatabaseConfig{
+			Path:               ":memory:",
+			MaxOpenConnections: 25,
+			MaxIdleConnections: 5,
+			ConnMaxLifetime:    5 * time.Minute,
+		},
 		LocalNode: "main",
 		Nodes:     map[string]config.NodeConfig{},
 	}
-	limitedManager := manager.New(appConfig)
+	db, err := database.Open(&database.Config{
+		Path:               appConfig.Database.Path,
+		MaxOpenConnections: appConfig.Database.MaxOpenConnections,
+		MaxIdleConnections: appConfig.Database.MaxIdleConnections,
+		ConnMaxLifetime:    appConfig.Database.ConnMaxLifetime,
+	})
+	if err != nil {
+		t.Fatalf("Failed to open database: %v", err)
+	}
+	if err := database.RunMigrations(db); err != nil {
+		t.Fatalf("Failed to run migrations: %v", err)
+	}
+	limitedManager := manager.New(appConfig, db)
 
 	options := &instance.Options{
 		BackendOptions: backends.Options{
@@ -63,7 +83,7 @@ func TestCreateInstance_FailsWhenMaxInstancesReached(t *testing.T) {
 		},
 	}
 
-	_, err := limitedManager.CreateInstance("instance1", options)
+	_, err = limitedManager.CreateInstance("instance1", options)
 	if err != nil {
 		t.Fatalf("CreateInstance 1 failed: %v", err)
 	}