WIP: restore lost C behaviors (schtick message, forced redraw, greeting)

Incomplete checkpoint, preserved after the implementing session hit a
capacity limit partway through mutation verification. NOT reviewed and NOT
gate-clean: make fmt has not been run, so fmt-check currently fails on
ARCHITECTURE.md and TODO.md.

Work still outstanding before this is fit for review:
  - run make fmt and fold the result in
  - finish mutation-proving each of the three behaviors
  - verify every message string byte-for-byte against the C sources
  - confirm TestSeedCompatItemTables passes with its golden untouched

Refs #13.

game/wizard_test.go

@@ -187,8 +187,9 @@ func malformed(kind ObjectKind) *Object {
 }
 
 // TestZapMalformedWandDoesNotPanic covers the sticks.go dispatch. C's
-// non-MASTER do_zap matched no case and still ran o_charges--, so the
-// charge must be spent even though nothing happens.
+// do_zap matched no case and still ran o_charges--, so the charge must be
+// spent even though the zap did nothing. What it says while doing nothing
+// belongs to TestZapUnhandledWandSaysBizarreSchtick.
 func TestZapMalformedWandDoesNotPanic(t *testing.T) {
 	t.Parallel()