Move all package-level vars into gameData; finish lint adoption

gochecknoglobals: all 37 package-level tables consolidated into the
gameData struct (game/tables.go), built by newGameData() and carried
on RogueGame as g.data (set in NewGame and Restore). ObjectKind
Glyph()/objectKindForGlyph are now switches; the table-reading subtype
Stringer methods are gone; isMagic is a RogueGame method.

goconst: repeated words named (potionName/scrollName/ringName/goldName
in object.go, wandName/staffName in sticks.go, ripWall in tables.go).

exhaustive, testpackage: disabled in .golangci.yml with sneak's
approval (2026-07-07).

Also reverts misspell's silent corruption of the "ther" scroll-name
syllable (it had become "there", changing generated scroll names vs C).

Remaining red: cyclop/gocognit/nestif until refactor step 7; mnd
awaits a ruling. TODO.md rotated; MEMORY.md lint notes updated.

game/dice_test.go

@@ -32,15 +32,16 @@ func TestParseDice(t *testing.T) {
 // The bestiary and weapon tables must parse to at least one attack each so
 // every creature and weapon actually swings.
 func TestTablesHaveDice(t *testing.T) {
-	for i, m := range monsterTable {
+	data := newGameData()
+	for i, m := range data.monsterTable {
 		if len(m.Stats.Dmg) == 0 {
 			t.Errorf("monster %c (%s) has no attacks", 'A'+i, m.Name)
 		}
 	}
 
-	for w, iw := range initWeaps {
+	for w, iw := range data.initWeaps {
 		if len(iw.dam) == 0 || len(iw.hrl) == 0 {
-			t.Errorf("weapon %v has empty dice", WeaponKind(w))
+			t.Errorf("weapon %d has empty dice", w)
 		}
 	}
 }