test: add TOTP fixture and load it in user test bootstrap

Add a TOTP fixture for user1 with a known secret to enable
testing TOTP validation logic. Update InitTests to load the
totp fixture alongside users and user_tokens.

pkg/db/fixtures/totp.yml

@@ -1,11 +1,5 @@
 - id: 1
-  user_id: 10
+  user_id: 1
   secret: 'JBSWY3DPEHPK3PXP'
   enabled: true
-  url: 'otpauth://totp/Vikunja:user10?secret=JBSWY3DPEHPK3PXP&issuer=Vikunja'
-# user1 has TOTP enrolled but not yet enabled — used by existing TOTP enrollment tests
-- id: 2
-  user_id: 1
-  secret: 'HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ'
-  enabled: false
-  url: 'otpauth://totp/Vikunja:user1?secret=HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ&issuer=Vikunja'
+  url: 'otpauth://totp/Vikunja:user1?secret=JBSWY3DPEHPK3PXP&issuer=Vikunja'

pkg/user/test.go

@@ -37,7 +37,7 @@ func InitTests() {
 		log.Fatal(err)
 	}
 
-	err = db.InitTestFixtures("users", "user_tokens")
+	err = db.InitTestFixtures("users", "user_tokens", "totp")
 	if err != nil {
 		log.Fatal(err)
 	}