Show Plexon2 as "Windows only" instead of hiding it on non-Windows

Instead of excluding Plexon2RecordingInterface from the backend on
non-Windows, let it appear in the search list as disabled with a
"Windows only" label. This informs users about the platform requirement
rather than silently hiding the option.

- Remove backend sys.platform check in get_all_interface_info()
- Export windowsOnlyInterfaces from globals
- Pass disabledReason to Search options for per-item disabled labels
- Support per-item --disabled-label override in Search component

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

Author: rly

src/electron/frontend/core/components/Search.js

@@ -397,7 +397,11 @@ export class Search extends LitElement {
                         this.#onSelect(option);
                     });
 
-                    if (disabled) listItemElement.setAttribute("disabled", "");
+                    if (disabled) {
+                        listItemElement.setAttribute("disabled", "");
+                        if (option.disabledReason)
+                            listItemElement.style.setProperty("--disabled-label", `"${option.disabledReason}"`);
+                    }
 
                     const container = document.createElement("div");
 

src/electron/frontend/core/components/pages/guided-mode/data/GuidedStructure.js

@@ -3,7 +3,7 @@ import { Page } from "../../Page.js";
 
 // For Multi-Select Form
 import { Button } from "../../../Button.js";
-import { supportedInterfaces } from "../../../../globals";
+import { supportedInterfaces, windowsOnlyInterfaces } from "../../../../globals";
 import { Search } from "../../../Search.js";
 import { Modal } from "../../../Modal";
 import { List } from "../../../List";
@@ -129,13 +129,19 @@ export class GuidedStructurePage extends Page {
                 suffixes: value.suffixes ?? [],
             };
 
+            const isSupported = supportedInterfaces.includes(interfaceName);
+            const disabledReason = !isSupported && windowsOnlyInterfaces.includes(interfaceName)
+                ? "Windows only"
+                : undefined;
+
             return {
                 ...value, // Contains label and name already (extra metadata)
                 key: displayName,
                 value: interfaceName,
                 structuredKeywords,
                 category,
-                disabled: !supportedInterfaces.includes(interfaceName),
+                disabled: !isSupported,
+                disabledReason,
             };
         });
 

src/electron/frontend/core/globals.js

@@ -49,4 +49,4 @@ export const ENCRYPTION_IV = isElectron ? crypto.randomBytes(IV_LENGTH) : "";
 // Storybook
 export const isStorybook = window.location.href.includes("iframe.html");
 
-export { supportedInterfaces };
+export { supportedInterfaces, windowsOnlyInterfaces };

src/pyflask/manageNeuroconv/manage_neuroconv.py

@@ -7,7 +7,6 @@
 import math
 import os
 import re
-import sys
 import traceback
 import zoneinfo
 from datetime import datetime, timedelta
@@ -370,10 +369,6 @@ def get_all_interface_info() -> dict:
         "SimaSegmentationInterface",
     ]
 
-    # Plexon2 is only supported on Windows
-    if sys.platform != "win32":
-        exclude_interfaces_from_selection.append("Plexon2RecordingInterface")
-
     return {
         getattr(interface, "display_name", interface.__name__) or interface.__name__: derive_interface_info(interface)
         for interface in interface_list