feat(lang): a module's private records and events are its own

A property or event a module does not export no longer collides with
another module's of the same spelling: each private one is renamed for
its module, with the types, new, emit and @On written in that module.
Exported ones stay one namespace; two events of one spelling are now
refused. Generic records, entity components and component or view
records stay global. Reseed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

examples/modules/kinds/hunting/index.ludic

@@ -0,0 +1,15 @@
+# hunting/index.ludic - a Catch and a Landed of its own, with other fields
+module hunting
+property Catch {
+  name: string = ""
+  weight: float = 0.0
+}
+event Landed { name: string }
+var heard: string = ""
+@On(Landed) handler Hear { heard = heard + name }
+export function hunting_day() -> string {
+  let c = new Catch
+  c.name = "hare"
+  emit Landed(name: c.name)
+  return heard
+}