Handle null when item hasn't been upgraded

sql/procedures.sql

@@ -396,7 +396,7 @@ begin
     raise exception 'Unable to find an inventory item that is owned and not actively staked';
   end if;
 
-  select claim_amount + claim_boost
+  select claim_amount + coalesce(claim_boost, 0)
   into total_stake_amount
   from inventory_item
   join store_item on inventory_item.store_item_id = store_item.id

test-endpoints.restclient

@@ -2,6 +2,7 @@
 Content-Type: application/json
 #
 :user_id = 595ab570-fa74-4c6c-980e-4c80d1064dd1
+:host = https://moonminers.app/api
 
 # Seed the SQLite database (deprecated)
 GET http://localhost:3000/api/seed
@@ -11,8 +12,12 @@ GET http://localhost:3000/api/seed
 POST http://localhost:3000/api/import-config
 :headers
 
+# Get leaderboards
+GET :host/leaderboards
+:headers
+
 # Get Inventory Items
-POST http://localhost:3000/api/user/login
+POST :host/user/login
 :headers
 { "wallet" : "Wallet12345678" }
 
@@ -40,10 +45,6 @@ PUT http://localhost:3000/api/user/:user_id/account
 POST http://localhost:3000/api/user/:user_id/clear-data
 :headers
 
-# Get leaderboards
-GET http://localhost:3000/api/leaderboards
-:headers
-
 # Get game config
 GET http://localhost:3000/api/get-game-config
 :headers
@@ -77,8 +78,8 @@ GET http://localhost:3000/api/user/:user_id/stakes/
 # Start a stake
 POST http://localhost:3000/api/user/:user_id/stakes/start
 :headers
-{ "inventoryItemId": "2bd5f846-ce1d-45be-998e-26d2e97b7f68"
-  , "wellId": "588ad177-83ca-4a5f-9672-bf97783ea42f" }
+{ "inventoryItemId": "1db181dd-320f-4525-a00d-933e5d72d690"
+  , "wellId": "0a7fd54d-02cf-4c08-b106-6f812ad4b1ca" }
 
 # Claim a stake
 POST http://localhost:3000/api/user/:user_id/stakes/claim