Add Sprints 60-61: Language Graduation and Certification Pipeline (Steps 829-848)

Sprint 60: Language Graduation and Full-Matrix Release (Steps 829-838)
Sprint 61: Continuous Matrix Certification Pipeline (Steps 839-848)

All 90 tests passing across both sprints.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

editor/tests/step834_test.cpp

@@ -0,0 +1,81 @@
+// Step 834: RegressionWatchlist tests (10 tests)
+#include "graduation/RegressionWatchlist.h"
+#include <iostream>
+static int p=0,f=0;
+#define T(n) { std::cout << "  " << #n << "... "; }
+#define P() { std::cout << "PASS\n"; ++p; }
+#define F(m) { std::cout << "FAIL: " << m << "\n"; ++f; }
+#define C(c,m) if(!(c)){F(m);return;}
+
+void t1(){T(add_success);
+    RegressionWatchlist wl;
+    WatchlistEntry e{"py->cpp","risk","now",true};
+    C(wl.add(e),"added");P();}
+
+void t2(){T(duplicate_fails);
+    RegressionWatchlist wl;
+    WatchlistEntry e{"py->cpp","risk","now",true};
+    wl.add(e);
+    std::string err;
+    C(!wl.add(e,&err),"dup fail");
+    C(err=="entry_duplicate","err msg");P();}
+
+void t3(){T(remove_success);
+    RegressionWatchlist wl;
+    WatchlistEntry e{"py->cpp","risk","now",true};
+    wl.add(e);
+    C(wl.remove("py->cpp"),"removed");P();}
+
+void t4(){T(remove_non_existent_fails);
+    RegressionWatchlist wl;
+    std::string err;
+    C(!wl.remove("nope",&err),"not found");
+    C(err=="entry_not_found","err");P();}
+
+void t5(){T(summarize_counts);
+    RegressionWatchlist wl;
+    wl.add({"a","r","now",true});
+    wl.add({"b","r","now",true});
+    auto s=wl.summarize();
+    C(s.totalEntries==2,"total");P();}
+
+void t6(){T(active_vs_total);
+    RegressionWatchlist wl;
+    wl.add({"a","r","now",true});
+    wl.add({"b","r","now",true});
+    wl.remove("a");
+    auto s=wl.summarize();
+    C(s.totalEntries==2&&s.activeEntries==1,"active vs total");P();}
+
+void t7(){T(empty_watcher);
+    RegressionWatchlist wl;
+    auto s=wl.summarize();
+    C(s.totalEntries==0,"empty");P();}
+
+void t8(){T(pairId_required);
+    RegressionWatchlist wl;
+    std::string err;
+    WatchlistEntry e{"","risk","now",true};
+    C(!wl.add(e,&err),"pairId required");
+    C(err=="pair_id_missing","err");P();}
+
+void t9(){T(toJson_has_entries);
+    RegressionWatchlist wl;
+    auto s=wl.summarize();
+    auto j=RegressionWatchlist::toJson(s);
+    C(j.contains("entries"),"entries");P();}
+
+void t10(){T(add_multiple_unique);
+    RegressionWatchlist wl;
+    wl.add({"a","r","now",true});
+    wl.add({"b","r","now",true});
+    wl.add({"c","r","now",true});
+    auto s=wl.summarize();
+    C(s.totalEntries==3,"three entries");P();}
+
+int main(){
+    std::cout<<"Step 834: RegressionWatchlist\n";
+    t1();t2();t3();t4();t5();t6();t7();t8();t9();t10();
+    std::cout<<"\nResults: "<<p<<"/"<<(p+f)<<" passed\n";
+    return f?1:0;
+}