feat: add totp login API (#416)

* fix:
* removed hasReversedValue in playground

* feat:
* added totp methods in db's providers
* adding totp in login method

* feat:
* added toggle in dashboard
* fixing issue with env set

* feat:
* integrated totp

* feat:
* encrypted userid
* added totp_verified column in user table
* started test for totp

* feat:
* test cases totp

* test-cases:
* completed test cases
* tested for all dbs

* fixes:
* return variable to snake case
* import refactoring

* feat:
* created seperate folder for authenticator with totp subfolder
* refactored code
* created new table for authenticators
* added recovery code for totp

* feat:
* adding functions to different db providers

* feat:
* added authenticators method for all db

* feat:
* added logic for updating mfa in user_profile update

* fix:
* merge conflict

* fix:
* resolved mongodb, dynamodb and arangodb test case bug
* added new condition for checking first time totp user or not

* feat:
* changes in all respective db with authenticator

* fix:
* PR suggested changes

* fix(cassandra): list users

* Update verify otp

* fix totp login api

---------

Co-authored-by: lemonScaletech <anand.panigrahi@scaletech.xyz>

server/utils/generate_totp_recovery_code.go

@@ -0,0 +1,19 @@
+package utils
+
+import (
+	"math/rand"
+	"time"
+)
+
+// GenerateTOTPRecoveryCode generates a random 16-character recovery code.
+func GenerateTOTPRecoveryCode() string {
+	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	code := make([]byte, 16)
+
+	rand.Seed(time.Now().UnixNano())
+	for i := range code {
+		code[i] = charset[rand.Intn(len(charset))]
+	}
+
+	return string(code)
+}