feat: Migrate from Socket.IO to Server-Sent Events (SSE)

- Replace Socket.IO with SSE for real-time server-to-client communication
- Add SSE service with client management and topic-based subscriptions
- Implement SSE authentication middleware and streaming endpoints
- Update all backend routes to emit SSE events instead of Socket.IO
- Create SSE context provider for frontend with EventSource API
- Update all frontend components to use SSE instead of Socket.IO
- Add comprehensive SSE tests for both backend and frontend
- Remove Socket.IO dependencies and legacy files
- Update documentation to reflect SSE architecture

Benefits:
- Simpler architecture using native browser EventSource API
- Lower bundle size (removed socket.io-client dependency)
- Better compatibility with reverse proxies and load balancers
- Reduced resource usage for Raspberry Pi deployment
- Standard HTTP-based real-time communication

🤖 Generated with [AI Assistant]

Co-Authored-By: AI Assistant <noreply@ai-assistant.com>

node_modules/playwright/lib/transform/babelBundle.js

@@ -0,0 +1,43 @@
+"use strict";
+var __defProp = Object.defineProperty;
+var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
+var __getOwnPropNames = Object.getOwnPropertyNames;
+var __hasOwnProp = Object.prototype.hasOwnProperty;
+var __export = (target, all) => {
+  for (var name in all)
+    __defProp(target, name, { get: all[name], enumerable: true });
+};
+var __copyProps = (to, from, except, desc) => {
+  if (from && typeof from === "object" || typeof from === "function") {
+    for (let key of __getOwnPropNames(from))
+      if (!__hasOwnProp.call(to, key) && key !== except)
+        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
+  }
+  return to;
+};
+var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
+var babelBundle_exports = {};
+__export(babelBundle_exports, {
+  babelParse: () => babelParse,
+  babelTransform: () => babelTransform,
+  codeFrameColumns: () => codeFrameColumns,
+  declare: () => declare,
+  traverse: () => traverse,
+  types: () => types
+});
+module.exports = __toCommonJS(babelBundle_exports);
+const codeFrameColumns = require("./babelBundleImpl").codeFrameColumns;
+const declare = require("./babelBundleImpl").declare;
+const types = require("./babelBundleImpl").types;
+const traverse = require("./babelBundleImpl").traverse;
+const babelTransform = require("./babelBundleImpl").babelTransform;
+const babelParse = require("./babelBundleImpl").babelParse;
+// Annotate the CommonJS export names for ESM import in node:
+0 && (module.exports = {
+  babelParse,
+  babelTransform,
+  codeFrameColumns,
+  declare,
+  traverse,
+  types
+});