Добавить двуязычную документацию (русский и английский) (#1101)

docs/EN/CfWorker.md

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+# Cloudflare Worker
+
+An alternative (completely free, no domain purchase required unlike [CfProxy](./CfProxy.md)) method for proxying.
+
+The proxy restores access to content that previously wouldn't load (reactions, certain stickers). If you are using a non-Premium account with this method and photos/videos still fail to load, leave only `4:149.154.167.220` in the `DC → IP` block.
+
+##
+
+1. **Add the following domains to [zapret](https://github.com/Flowseal/zapret-discord-youtube/) or any other DPI bypass software:**
+
+```
+cloudflare.com
+cloudflare.dev
+workers.dev
+```
+
+2. Create an account on [Cloudflare](https://dash.cloudflare.com/) (or log into an existing one)
+	* **After creating your account, verify your email using the link sent to your inbox**
+3. Select `Compute` → `Workers & Pages` from the left panel
+   <img width="250" height="768" alt="image" src="https://github.com/user-attachments/assets/d81e3522-045a-4e65-9c2e-5545b7ad409a" />
+
+4. Click the **`Create application`** button in the top right → `Start with Hello World!` → `Deploy`
+   <img width="1406" height="193" alt="image" src="https://github.com/user-attachments/assets/7ac65944-8761-42a6-ab6d-ba5f9080c883" />
+   <img width="586" height="379" alt="image" src="https://github.com/user-attachments/assets/ff901439-c2a1-4867-95de-e11b82a37044" />
+   <img width="624" height="694" alt="image" src="https://github.com/user-attachments/assets/bb68d49a-166d-42a0-8fe2-bd2b16c0d066" />
+
+5. Click the **`Edit code`** button in the top right, then replace the code on the left with the one [found at the bottom of this page](#worker-code)
+    * If the code section fails to load, it means you missed the first step
+    <img width="911" height="117" alt="image" src="https://github.com/user-attachments/assets/6bcdf839-d776-47e9-9d18-ba0efdf53244" />
+	<img width="1027" height="512" alt="image" src="https://github.com/user-attachments/assets/daf131ed-82d5-40f0-a7eb-daeb598bea40" />
+
+
+6. Click the **`Deploy`** button in the top right
+   <img width="415" height="138" alt="image" src="https://github.com/user-attachments/assets/58d8f83e-d8b5-40cf-a30f-741d7311047b" />
+
+7. Copy the domain from the field on the right and specify it in your **Cloudflare Worker** settings (or via the `--cfproxy-worker-domain` argument)
+    * Example domain: `random-symbols-1234.username.workers.dev`
+	* **You can specify multiple domains separated by commas (or by repeating the `--cfproxy-worker-domain` argument)**
+   <img width="414" height="182" alt="image" src="https://github.com/user-attachments/assets/4fb0b111-8026-4d17-b993-6c70ec37f1f5" />
+
+
+
+### Worker Code
+
+```javascript
+import { connect } from "cloudflare:sockets";
+
+function toBytes(data) {
+	if (data instanceof ArrayBuffer) {
+		return new Uint8Array(data);
+	}
+	if (typeof data === "string") {
+		return new TextEncoder().encode(data);
+	}
+	if (data && typeof data.arrayBuffer === "function") {
+		return data.arrayBuffer().then((ab) => new Uint8Array(ab));
+	}
+	return new Uint8Array();
+}
+
+export default {
+	async fetch(request) {
+		if ((request.headers.get("Upgrade") || "").toLowerCase() !== "websocket") {
+			return new Response("Expected websocket", { status: 426 });
+		}
+
+		const url = new URL(request.url);
+		if (url.pathname !== "/apiws") {
+			return new Response("Not found", { status: 404 });
+		}
+
+		const dst = url.searchParams.get("dst");
+		const pair = new WebSocketPair();
+		const client = pair[0];
+		const server = pair[1];
+		server.accept();
+
+		const socket = connect({ hostname: dst, port: 443 });
+		const tcpReader = socket.readable.getReader();
+		const tcpWriter = socket.writable.getWriter();
+
+		server.addEventListener("message", async (event) => {
+			try {
+				await tcpWriter.write(await toBytes(event.data));
+			} catch {
+				try {
+					server.close(1011, "tcp write failed");
+				} catch {}
+			}
+		});
+
+		server.addEventListener("close", async () => {
+			try {
+				await tcpWriter.close();
+			} catch {}
+			try {
+				socket.close();
+			} catch {}
+		});
+
+		(async () => {
+			try {
+				while (true) {
+					const { value, done } = await tcpReader.read();
+					if (done) {
+						break;
+					}
+					if (value) {
+						server.send(value);
+					}
+				}
+			} catch {
+			} finally {
+				try {
+					server.close();
+				} catch {}
+				try {
+					tcpReader.releaseLock();
+				} catch {}
+				try {
+					socket.close();
+				} catch {}
+			}
+		})();
+
+		return new Response(null, { status: 101, webSocket: client });
+	},
+};
+```