test: pin the budget rule to one unit per launch attempt

Author: Sy-D

src/core/run.test.ts

@@ -2106,6 +2106,10 @@ test("a task that catches a failed relaunch is re-entered rather than left waiti
   expect(caught).toContain("503 from the gateway")
   expect(result.outcome).toBe("completed")
   expect(entries).toEqual([1, 2])
+  // One unit per launch attempt, stated once and applied everywhere: the
+  // relaunch's attempt that failed, and the loop's that worked. 0.2.0 charged
+  // the failed one twice — once for the relaunch, once for the death it caused.
+  expect(events[0]?.relaunches).toBe(2)
   expect(events[0]?.manualRelaunches).toBe(0)
 })