regenerate omp port from pi base via port-to-omp

Checks now self-register through the static barrel (src/checks/all.ts) like
the pi base: the ?mtime registry-split workaround is gone, check modules and
tests are byte-identical to the base, and registration happens in one module
graph instance under omp's extension loader.

tests/defensive-guards.test.ts

@@ -35,11 +35,11 @@ import { loadRunState } from "../src/run-state.js";
 import {
 	findingsPath,
 	changesPath,
-	check as defensiveGuardsCheck,
+	defensiveGuardsCheck,
 } from "../src/checks/defensive-guards.js";
 
 function stubCtx(cwd: string): PygieniumCtx {
-	return { cwd,  hasUI: false, ui: undefined } as PygieniumCtx;
+	return { cwd, mode: "print", hasUI: false, ui: undefined } as PygieniumCtx;
 }
 
 /**