refactor: remove pocketbase (#1138)

app/auth/password/password.go

@@ -0,0 +1,32 @@
+package password
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"fmt"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+func Hash(password string) (hashedPassword, tokenKey string, err error) {
+	hashedPasswordB, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return "", "", fmt.Errorf("failed to hash password: %w", err)
+	}
+
+	tokenKey, err = GenerateTokenKey()
+	if err != nil {
+		return "", "", err
+	}
+
+	return string(hashedPasswordB), tokenKey, nil
+}
+
+func GenerateTokenKey() (string, error) {
+	b := make([]byte, 32)
+	if _, err := rand.Read(b); err != nil {
+		return "", err
+	}
+
+	return base64.URLEncoding.EncodeToString(b), nil
+}