✨feature: Add cooldown/navigation timers, move credits display to header

lib/spacetraders-api.php

@@ -291,6 +291,33 @@ class SpacetradersApi {
         );
     }
 
+    /**
+     * Deliver cargo for a contract using a ship at the delivery destination.
+     *
+     * @param string $contractId  The contract ID.
+     * @param string $shipSymbol  The ship symbol delivering cargo.
+     * @param string $tradeSymbol The trade symbol being delivered.
+     * @param int    $units       The number of units to deliver.
+     *
+     * @return array<string,mixed>
+     */
+    public function deliverContractCargo(
+        string $contractId,
+        string $shipSymbol,
+        string $tradeSymbol,
+        int $units
+    ): array {
+        return $this->request(
+            'POST',
+            '/my/contracts/' . rawurlencode( $contractId ) . '/deliver',
+            array(
+                'shipSymbol'  => $shipSymbol,
+                'tradeSymbol' => $tradeSymbol,
+                'units'       => $units,
+            )
+        );
+    }
+
     /**
      * Get a list of all systems in the universe.
      *