feat: module interaction system with wiring panel

Add a new "module" interaction type where doors/devices define ports
(in/out) and a JS verify function. Players wire their gadget's I/O
to the module's ports via a canvas-rendered wiring panel, then execute
to verify the circuit logic.

- New wiringPanel.js: full wiring UI with keyboard nav, bezier wires,
  mini circuit evaluator, and verify execution
- AND-gate example door in Circuit Lab (tile 9,1)
- Editor support: module type with ports editor and JS verify textarea
- Integrated into gameMode, worldInput, worldRenderer

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

js/world/worldInput.js

@@ -3,6 +3,7 @@ import { worldState, advanceDialog, startDialog } from './worldState.js';
 import { getMap, getInteraction, getNPC, getExit, isWalkable } from './maps.js';
 import { toggleDebug } from './worldRenderer.js';
 import { isBackpackOpen, openBackpack, handleBackpackInput, isNamingActive, handleNamingInput } from './inventory.js';
+import { isWiringOpen, handleWiringInput } from './wiringPanel.js';
 
 const keysDown = new Set();
 let interactionHandler = null;
@@ -33,6 +34,13 @@ function onKeyDown(e) {
         return;
     }
 
+    // Wiring panel — route all input there
+    if (isWiringOpen()) {
+        e.preventDefault();
+        handleWiringInput(key);
+        return;
+    }
+
     // Backpack open — route all input there
     if (isBackpackOpen()) {
         e.preventDefault();
@@ -201,6 +209,9 @@ function performInteraction() {
         case 'puzzle_door':
             if (interactionHandler) interactionHandler({ type: 'puzzleDoor', data: inter });
             break;
+        case 'module':
+            if (interactionHandler) interactionHandler({ type: 'module', data: inter });
+            break;
         default:
             if (inter.dialog) startDialog(inter.dialog, '');
             break;