copy gsp to clipboard, order task separately

create.sql

@@ -25,7 +25,7 @@ CREATE TABLE POSITIONS (
 CREATE TABLE QR_CODES (
     id INTEGER PRIMARY KEY,
     position_id INTEGER NOT NULL,
-    uid VARCHAR(100) NOT NULL,
+    uid VARCHAR(100) UNIQUE NOT NULL,
     FOREIGN KEY (position_id) REFERENCES positions(id)
 );
 CREATE TABLE CIPHERS (
@@ -43,7 +43,7 @@ CREATE TABLE TASKS (
     cipher_id INTEGER NOT NULL,
     position_id INTEGER NOT NULL,
     difficulty_level INTEGER NOT NULL,
-    order_num INTEGER UNIQUE NOT NULL,
+    order_num INTEGER NOT NULL,
     end_clue TEXT NOT NULL,
     FOREIGN KEY (cipher_id) REFERENCES CIPHERS(id),
     FOREIGN KEY (position_id) REFERENCES POSITIONS(id),