implement a bit of the register.php call (and the DB schema)

server/db/schema_1.0.sql

@@ -0,0 +1,38 @@
+DROP TABLE IF EXISTS `users`;
+CREATE TABLE `users`
+(
+    `user_id`            INT(11)         NOT NULL   AUTO_INCREMENT,
+    `user_key`           VARCHAR(64)     NOT NULL,
+    `fcm_token`          VARCHAR(256)        NULL   DEFAULT NULL,
+    `messages_sent`      INT(11)         NOT NULL   DEFAULT '0',
+    `timestamp_created`  DATETIME        NOT NULL   DEFAULT CURRENT_TIMESTAMP,
+    `timestamp_accessed` DATETIME            NULL   DEFAULT NULL,
+
+    `quota_today`        INT(11)         NOT NULL   DEFAULT '0',
+    `quota_day`          DATE                NULL   DEFAULT NULL,
+
+    `is_pro`             BIT             NOT NULL   DEFAULT 0,
+    `pro_token`          VARCHAR(256)        NULL   DEFAULT NULL,
+
+    PRIMARY KEY (`user_id`)
+);
+
+DROP TABLE IF EXISTS `messages`;
+CREATE TABLE `messages`
+(
+    `scn_message_id`     INT(11)         NOT NULL   AUTO_INCREMENT,
+    `sender_user_id`     INT(11)         NOT NULL,
+
+    `timestamp_real`     DATETIME        NOT NULL   DEFAULT CURRENT_TIMESTAMP,
+    `ack`                TINYINT(1)      NOT NULL   DEFAULT 0,
+
+    `title`              VARCHAR(256)    NOT NULL,
+    `content`            LONGTEXT            NULL,
+    `priority`           INT(11)         NOT NULL,
+    `sendtime`           BIGINT UNSIGNED NOT NULL,
+
+    `fcm_message_id`     VARCHAR(256)        NULL,
+    `usr_message_id`     VARCHAR(256)        NULL,
+
+    PRIMARY KEY (`scn_message_id`)
+);