fix: prevent asset conflicts between React and Grid.js versions

Add coexistence checks to all enqueue methods to prevent loading
both React and Grid.js assets simultaneously.

Changes:
- ReactAdmin.php: Only enqueue React assets when ?react=1
- Init.php: Skip Grid.js when React active on admin pages
- Form.php, Coupon.php, Access.php: Restore classic assets when ?react=0
- Customer.php, Product.php, License.php: Add coexistence checks

Now the toggle between Classic and React versions works correctly.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

node_modules/reakit/ts/Rover/Rover.d.ts

@@ -0,0 +1,53 @@
+import * as React from "react";
+import { ClickableOptions, ClickableHTMLProps } from "../Clickable/Clickable";
+import { unstable_IdOptions, unstable_IdHTMLProps } from "../Id/Id";
+import { RoverStateReturn } from "./RoverState";
+export declare type RoverOptions = ClickableOptions & unstable_IdOptions & Pick<Partial<RoverStateReturn>, "orientation" | "unstable_moves"> & Pick<RoverStateReturn, "stops" | "currentId" | "register" | "unregister" | "move" | "next" | "previous" | "first" | "last"> & {
+    /**
+     * Element ID.
+     */
+    stopId?: string;
+};
+export declare type RoverHTMLProps = ClickableHTMLProps & unstable_IdHTMLProps;
+export declare type RoverProps = RoverOptions & RoverHTMLProps;
+export declare const useRover: {
+    (options?: RoverOptions | undefined, htmlProps?: import("..").TabbableHTMLProps | undefined, unstable_ignoreUseOptions?: boolean | undefined): import("..").TabbableHTMLProps;
+    unstable_propsAreEqual: (prev: import("..").RoleOptions & {
+        disabled?: boolean | undefined;
+        focusable?: boolean | undefined;
+    } & {
+        unstable_clickOnEnter?: boolean | undefined;
+        unstable_clickOnSpace?: boolean | undefined;
+    } & Pick<Partial<import("..").unstable_IdStateReturn>, "baseId" | "unstable_idCountRef"> & {
+        id?: string | undefined;
+    } & Pick<Partial<RoverStateReturn>, "orientation" | "unstable_moves"> & Pick<RoverStateReturn, "next" | "move" | "first" | "last" | "currentId" | "previous" | "stops" | "register" | "unregister"> & {
+        /**
+         * Element ID.
+         */
+        stopId?: string | undefined;
+    } & React.HTMLAttributes<any> & React.RefAttributes<any> & {
+        wrapElement?: ((element: React.ReactNode) => React.ReactNode) | undefined;
+    } & {
+        disabled?: boolean | undefined;
+    }, next: import("..").RoleOptions & {
+        disabled?: boolean | undefined;
+        focusable?: boolean | undefined;
+    } & {
+        unstable_clickOnEnter?: boolean | undefined;
+        unstable_clickOnSpace?: boolean | undefined;
+    } & Pick<Partial<import("..").unstable_IdStateReturn>, "baseId" | "unstable_idCountRef"> & {
+        id?: string | undefined;
+    } & Pick<Partial<RoverStateReturn>, "orientation" | "unstable_moves"> & Pick<RoverStateReturn, "next" | "move" | "first" | "last" | "currentId" | "previous" | "stops" | "register" | "unregister"> & {
+        /**
+         * Element ID.
+         */
+        stopId?: string | undefined;
+    } & React.HTMLAttributes<any> & React.RefAttributes<any> & {
+        wrapElement?: ((element: React.ReactNode) => React.ReactNode) | undefined;
+    } & {
+        disabled?: boolean | undefined;
+    }) => boolean;
+    __keys: readonly any[];
+    __useOptions: (options: RoverOptions, htmlProps: import("..").TabbableHTMLProps) => RoverOptions;
+};
+export declare const Rover: import("reakit-system/ts/createComponent").Component<"button", RoverOptions>;

node_modules/reakit/ts/Rover/RoverState.d.ts

@@ -0,0 +1,81 @@
+import * as React from "react";
+import { SealedInitialState } from "reakit-utils/useSealedState";
+import { unstable_IdState, unstable_IdActions, unstable_IdInitialState } from "../Id/IdState";
+declare type Stop = {
+    id: string;
+    ref: React.RefObject<HTMLElement>;
+};
+export declare type RoverState = unstable_IdState & {
+    /**
+     * Defines the orientation of the rover list.
+     */
+    orientation?: "horizontal" | "vertical";
+    /**
+     * A list of element refs and IDs of the roving items.
+     */
+    stops: Stop[];
+    /**
+     * The current focused element ID.
+     */
+    currentId: Stop["id"] | null;
+    /**
+     * The last focused element ID.
+     * @private
+     */
+    unstable_pastId: Stop["id"] | null;
+    /**
+     * Stores the number of moves that have been made by calling `move`, `next`,
+     * `previous`, `first` or `last`.
+     */
+    unstable_moves: number;
+    /**
+     * If enabled:
+     *   - Jumps to the first item when moving next from the last item.
+     *   - Jumps to the last item when moving previous from the first item.
+     */
+    loop: boolean;
+};
+export declare type RoverActions = unstable_IdActions & {
+    /**
+     * Registers the element ID and ref in the roving tab index list.
+     */
+    register: (id: Stop["id"], ref: Stop["ref"]) => void;
+    /**
+     * Unregisters the roving item.
+     */
+    unregister: (id: Stop["id"]) => void;
+    /**
+     * Moves focus to a given element ID.
+     */
+    move: (id: Stop["id"] | null, unstable_silent?: boolean) => void;
+    /**
+     * Moves focus to the next element.
+     */
+    next: () => void;
+    /**
+     * Moves focus to the previous element.
+     */
+    previous: () => void;
+    /**
+     * Moves focus to the first element.
+     */
+    first: () => void;
+    /**
+     * Moves focus to the last element.
+     */
+    last: () => void;
+    /**
+     * Resets `currentId` and `pastId` states.
+     * @private
+     */
+    unstable_reset: () => void;
+    /**
+     * Changes the `orientation` state of the roving tab index list.
+     * @private
+     */
+    unstable_orientate: (orientation: RoverState["orientation"]) => void;
+};
+export declare type RoverInitialState = unstable_IdInitialState & Partial<Pick<RoverState, "orientation" | "currentId" | "loop">>;
+export declare type RoverStateReturn = RoverState & RoverActions;
+export declare function useRoverState(initialState?: SealedInitialState<RoverInitialState>): RoverStateReturn;
+export {};

node_modules/reakit/ts/Rover/__keys.d.ts

@@ -0,0 +1 @@
+export declare const ROVER_KEYS: readonly ["baseId", "unstable_idCountRef", "orientation", "stops", "currentId", "unstable_pastId", "unstable_moves", "loop", "setBaseId", "register", "unregister", "move", "next", "previous", "first", "last", "unstable_reset", "unstable_orientate", "stopId"];

node_modules/reakit/ts/Rover/index.d.ts

@@ -0,0 +1,2 @@
+export * from "./Rover";
+export * from "./RoverState";