totp: new crate, sql migration + queries, enable totp page, save secret in database

crates/users/src/database.rs

@@ -24,6 +24,8 @@ impl From<DatabaseUsers> for User {
             paper_key: db.paper_key,
             is_archived: db.is_archived,
             timezone: db.timezone,
+            totp_secret: db.totp_secret,
+            totp_backup: db.totp_backup,
         }
     }
 }
@@ -225,4 +227,24 @@ impl User {
 
         Ok(())
     }
+
+    pub async fn set_totp_secret(
+        &self,
+        conn: impl SqliteExecutor<'_>,
+        secret: Option<&[u8]>,
+    ) -> Result<(), Error> {
+        DatabaseUsers::set_totp_secret(conn, self.id.as_ref(), secret).await?;
+
+        Ok(())
+    }
+
+    pub async fn set_totp_backup(
+        &self,
+        conn: impl SqliteExecutor<'_>,
+        backup: Option<&str>,
+    ) -> Result<(), Error> {
+        DatabaseUsers::set_totp_backup(conn, self.id.as_ref(), backup).await?;
+
+        Ok(())
+    }
 }