Vendor libs/hump, sfxrlua, json4lua, narrator as real files

These were committed as empty submodule gitlinks with no .gitmodules,
so the folders were never populated and the game could not load
(require of libs/hump/timer, libs/sfxrlua/sfxr, narrator.narrator).
Checked out each at its pinned commit and vendored the files, matching
the existing bundled-libs convention. Removed the junk libs/libs/ tree.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

libs/narrator/test/units/lists-queries.ink

@@ -0,0 +1,50 @@
+LIST GuardsOnDuty = (Smith), (Jones), Carter, Braithwaite
+LIST CoreValues = strength, courage, compassion, greed, nepotism, delusions_of_godhood
+
+Normal: { GuardsOnDuty }
+~ GuardsOnDuty = LIST_INVERT(GuardsOnDuty)
+Inverted: { GuardsOnDuty }
+
+Range: { LIST_RANGE(GuardsOnDuty, Jones, Carter) }
+
+...
+VAR desiredValues = (strength, courage, compassion, nepotism )
+VAR actualValues =  ( greed, nepotism, delusions_of_godhood )
+{desiredValues ^ actualValues: The new president has at least one desirable quality. A cold {desiredValues ^ actualValues}.}
+{LIST_COUNT(desiredValues ^ actualValues) == 1: Correction, the new president has only one desirable quality. {desiredValues ^ actualValues == nepotism: It's the scary one.}}
+
+...
+LIST Characters = Alfred, Batman, Robin
+LIST Props = champagne_glass, newspaper
+
+VAR BallroomContents = (Alfred, Batman, newspaper)
+VAR HallwayContents = (Robin, champagne_glass)
+VAR roomState = (Robin, champagne_glass)
+
+-> room
+== room
+{ roomState ? Alfred: Alfred is here, standing quietly in a corner. } { roomState ? Batman: Batman's presence dominates all. } { roomState ? Robin: Robin is all but forgotten. }
+	<> { roomState ? champagne_glass: A champagne glass lies discarded on the floor. } { roomState ? newspaper: On one table, a headline blares out WHO IS THE BATMAN? AND *WHO* IS HIS BARELY-REMEMBERED ASSISTANT? }
+
+{ roomState == BallroomContents :
+    -> letters
+- else:
+    ~ roomState = BallroomContents
+    -> room
+}
+
+== letters
+LIST Letters = a,b,c
+LIST Numbers = one, two, three
+VAR mixedList = (a, three, c)
+
+...
+{LIST_ALL(mixedList)}       // a, one, b, two, c, three
+{LIST_COUNT(mixedList)}     // 3
+{LIST_MIN(mixedList)}       // a
+{LIST_MAX(mixedList)}       // c
+{mixedList ? (a,b) }        // 0 (false)
+{mixedList ^ LIST_ALL(a)}   // a, c
+{ mixedList >= (one, a) }   // 1 (true)
+{ mixedList > (three) }     // 0 (false)
+{ LIST_INVERT(mixedList) }  // one, b, two