maude: Phase 2 syntactic equational reduction (26 tests, 91 total)

lib/maude/reduce.sx — one-sided syntactic matching (non-linear patterns
via bound-var equality), immutable substitutions, innermost fixpoint
normalisation. Tested on Peano arithmetic, list ops, a propositional
logic simplifier, and non-linear matching.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lib/maude/scoreboard.json

@@ -1,10 +1,11 @@
 {
   "lang": "maude",
-  "total_passed": 65,
+  "total_passed": 91,
   "total_failed": 0,
-  "total": 65,
+  "total": 91,
   "suites": [
-    {"name":"parse","passed":65,"failed":0,"total":65}
+    {"name":"parse","passed":65,"failed":0,"total":65},
+    {"name":"reduce","passed":26,"failed":0,"total":26}
   ],
-  "generated": "2026-06-07T14:42:29+00:00"
+  "generated": "2026-06-07T14:45:37+00:00"
 }