fix: push3-evolution tsconfig rootDir too narrow for cross-project imports

Widen rootDir from "." to ".." and include push3-transpiler sources so
tsc can resolve the ../push3-transpiler/src imports that mutate.ts and
test files use.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tools/push3-evolution/tsconfig.json

@@ -7,8 +7,8 @@
     "esModuleInterop": true,
     "skipLibCheck": true,
     "outDir": "dist",
-    "rootDir": "."
+    "rootDir": ".."
   },
-  "include": ["./**/*.ts"],
+  "include": ["./**/*.ts", "../push3-transpiler/src/**/*.ts"],
   "exclude": ["node_modules", "dist"]
 }