De-slop: remove every em-dash + banned words across all modules + capstone (#94)

Co-authored-by: claude <claude@jpaul.io>
Co-committed-by: claude <claude@jpaul.io>

modules/27-evals/lab/run_eval.py

@@ -68,9 +68,9 @@ def main(argv):
     print(f"\nscore: {passed}/{len(CASES)} = {score:.0%}   threshold: {args.threshold:.0%}")
 
     if score < args.threshold:
-        print("RESULT: below threshold — this change is NOT safe to ship.\n")
+        print("RESULT: below threshold; this change is NOT safe to ship.\n")
         return 1
-    print("RESULT: at or above threshold — safe by this eval.\n")
+    print("RESULT: at or above threshold; safe by this eval.\n")
     return 0