fix(a2): fix SQL scripts

Author: declan-zhao

a2/initdb.sql

@@ -19,13 +19,13 @@ CREATE TABLE IF NOT EXISTS user_login (
   salt varchar(255) NOT NULL,
   challenge varchar(255),
   expires datetime,
-  FOREIGN KEY (username) REFERENCES users(username) ON DELETE CASCADE
+  FOREIGN KEY (username) REFERENCES user(username) ON DELETE CASCADE
 );
 CREATE TABLE IF NOT EXISTS user_session (
   sessionid varchar(255) PRIMARY KEY,
   username varchar(255) UNIQUE NOT NULL,
   expires datetime NOT NULL,
-  FOREIGN KEY (username) REFERENCES users(username) ON DELETE CASCADE
+  FOREIGN KEY (username) REFERENCES user(username) ON DELETE CASCADE
 );
 CREATE INDEX IF NOT EXISTS user_session_sessionid_expires ON user_session(sessionid, expires);
 CREATE TABLE IF NOT EXISTS web_session (
@@ -41,5 +41,6 @@ CREATE TABLE IF NOT EXISTS user_safe (
   sitepasswd text NOT NULL,
   siteiv varchar(255),
   modified datetime,
-  PRIMARY KEY (username, site) FOREIGN KEY (username) REFERENCES users(username) ON DELETE CASCADE
+  PRIMARY KEY (username, site),
+  FOREIGN KEY (username) REFERENCES user(username) ON DELETE CASCADE
 );