Initial import with modified Dockerfile for env-based config generation

internal/storage/repository.go

@@ -0,0 +1,35 @@
+package storage
+
+import "context"
+
+// Repository defines the interface for user storage operations
+// This abstraction allows swapping SQLite for PostgreSQL or other databases
+type Repository interface {
+	// User operations
+	GetUserByEmail(ctx context.Context, email string) (*User, error)
+	GetUserByGiteaUsername(ctx context.Context, username string) (*User, error)
+	GetUserBySlackID(ctx context.Context, slackID string) (*User, error)
+	UpsertUser(ctx context.Context, user *User) error
+	ListUsers(ctx context.Context) ([]*User, error)
+
+	// Migrations
+	Migrate(ctx context.Context) error
+
+	// Close the connection
+	Close() error
+}
+
+// ErrNotFound is returned when a user is not found
+type ErrNotFound struct {
+	Message string
+}
+
+func (e *ErrNotFound) Error() string {
+	return e.Message
+}
+
+// IsNotFound checks if an error is a not found error
+func IsNotFound(err error) bool {
+	_, ok := err.(*ErrNotFound)
+	return ok
+}