feat(plugins): add JavaScript plugin system with overlay panel (#303)

src/renderer/handlers/keyboard.test.ts

@@ -595,6 +595,7 @@ function createKeyboardHandlerHarness() {
       changelogKeydownCount += 1;
       return true;
     },
+    handlePluginPanelKeydown: () => false,
     openSessionHelpModal: () => {},
     openControllerSelectModal: () => {
       openControllerSelectCount += 1;

src/renderer/handlers/keyboard.ts

@@ -32,6 +32,7 @@ export function createKeyboardHandlers(
     handleControllerDebugKeydown: (e: KeyboardEvent) => boolean;
     handleSessionHelpKeydown: (e: KeyboardEvent) => boolean;
     handleChangelogKeydown: (e: KeyboardEvent) => boolean;
+    handlePluginPanelKeydown: (e: KeyboardEvent) => boolean;
     openSessionHelpModal: (opening: {
       bindingKey: 'KeyH' | 'KeyK';
       fallbackUsed: boolean;
@@ -1172,6 +1173,11 @@ export function createKeyboardHandlers(
         return;
       }
 
+      if (ctx.state.pluginPanelModalOpen) {
+        options.handlePluginPanelKeydown(e);
+        return;
+      }
+
       if (ctx.state.runtimeOptionsModalOpen) {
         options.handleRuntimeOptionsKeydown(e);
         return;