Add user maintenance CLI (#9)

- Add CLI infrastructure
- Add user to index page query
- Strip tags from title
- Move item parsing to FeedItem

src/lib/Security.php

@@ -84,6 +84,20 @@ class Security {
         add_error('Invalid credentials; log on unsuccessful');
     }
 
+    /**
+     * Update the password for the given user
+     *
+     * @param string $email The e-mail address of the user whose password should be updated
+     * @param string $password The new password for this user
+     * @param SQLite3 $db The database connection to use in updating the password
+     */
+    public static function updatePassword(string $email, string $password, SQLite3 $db): void {
+        $query = $db->prepare('UPDATE frc_user SET password = :password WHERE email = :email');
+        $query->bindValue(':password', password_hash($password, PASSWORD_DEFAULT));
+        $query->bindValue(':email',    $email);
+        $query->execute();
+    }
+
     /**
      * Log on the single user
      *