FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/@solana/wallet-standard-features/src/signMessage.ts

@@ -0,0 +1,54 @@
+import type { WalletAccount } from '@wallet-standard/base';
+
+/** Name of the feature. */
+export const SolanaSignMessage = 'solana:signMessage';
+
+/** TODO: docs */
+export type SolanaSignMessageFeature = {
+    /** Name of the feature. */
+    readonly [SolanaSignMessage]: {
+        /** Version of the feature API. */
+        readonly version: SolanaSignMessageVersion;
+
+        /** Sign messages (arbitrary bytes) using the account's secret key. */
+        readonly signMessage: SolanaSignMessageMethod;
+    };
+};
+
+/** Version of the feature. */
+export type SolanaSignMessageVersion = '1.1.0' | '1.0.0';
+
+/** TODO: docs */
+export type SolanaSignMessageMethod = (
+    ...inputs: readonly SolanaSignMessageInput[]
+) => Promise<readonly SolanaSignMessageOutput[]>;
+
+/** Input for signing a message. */
+export interface SolanaSignMessageInput {
+    /** Account to use. */
+    readonly account: WalletAccount;
+
+    /** Message to sign, as raw bytes. */
+    readonly message: Uint8Array;
+}
+
+/** Output of signing a message. */
+export interface SolanaSignMessageOutput {
+    /**
+     * Message bytes that were signed.
+     * The wallet may prefix or otherwise modify the message before signing it.
+     */
+    readonly signedMessage: Uint8Array;
+
+    /**
+     * Message signature produced.
+     * If the signature type is provided, the signature must be Ed25519.
+     */
+    readonly signature: Uint8Array;
+
+    /**
+     * Optional type of the message signature produced.
+     * If not provided, the signature must be Ed25519.
+     */
+    readonly signatureType?: 'ed25519';
+}