backend: Add "date_added" column to db spec.

back_end/src/db_handler.rs

@@ -41,6 +41,7 @@ fn init_conn(sqlite_path: &str, first_run: DBFirstRun) -> Result<Connection, Str
             CREATE TABLE games (id INTEGER PRIMARY KEY NOT NULL,
                 cyan_player INTEGER UNIQUE NOT NULL,
                 magenta_player INTEGER UNIQUE NOT NULL,
+                date_added TEXT NOT NULL,
                 date_changed TEXT NOT NULL,
                 board TEXT NOT NULL,
                 status INTEGER NOT NULL,

backend_database_specification.md

@@ -26,6 +26,7 @@ CREATE TABLE players (id INTEGER PRIMARY KEY NOT NULL,
 CREATE TABLE games (id INTEGER PRIMARY KEY NOT NULL,
                     cyan_player INTEGER UNIQUE,
                     magenta_player INTEGER UNIQUE,
+                    date_added TEXT NOT NULL,
                     date_changed TEXT NOT NULL,
                     board TEXT NOT NULL,
                     status INTEGER NOT NULL,