prediction: rewrite the prompting stack to create the ship computer as a second character, and let characters/agents operate autonomously with their own tasks and event queues

build.rs

@@ -1,3 +1,4 @@
 fn main() {
     println!("cargo::rerun-if-changed=src/system-prompt.txt");
+    println!("cargo::rerun-if-changed=src/computer-prompt.txt");
 }