refactor: consolidate temperature reporting into temperature_driver and remove temperature_monitor

coolant_driver.lua

@@ -0,0 +1,10 @@
+local function report()
+    local reactor = peripheral.find("fissionReactorLogicAdapter")
+    if reactor then
+        return reactor.getTemperature()
+    else
+        return "No reactor found"
+    end
+end
+
+return { report = report }