Add comprehensive installation and setup documentation

- Add GETTING_STARTED.md with quick start guide and development modes
- Add INSTALL.sh automated installation script
- Add INSTALLATION_CHECKLIST.md, INSTALLATION_SUCCESS.md, and INSTALLATION_SUMMARY.md
- Add QUICK_REFERENCE.md for common commands
- Add SETUP_GUIDE.md with detailed setup instructions
- Update README.md with improved project overview
- Add did-wallet app dependencies and node_modules

apps/did-wallet/node_modules/isomorphic-ws/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2018 Zejin Zhuang <heineiuo@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

apps/did-wallet/node_modules/isomorphic-ws/README.md

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+# isomorphic-ws
+
+Isomorphic implementation of WebSocket.
+
+It uses:
+- [ws](https://github.com/websockets/ws) on Node
+- [global.WebSocket](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket) in browsers
+
+## Limitations
+
+Before using this module you should know that
+[`ws`](https://github.com/websockets/ws/blob/master/doc/ws.md#class-websocket)
+is not perfectly API compatible with
+[WebSocket](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket),
+you should always test your code against both Node and browsers.
+
+Some major differences:
+
+- no `Server` implementation in browsers
+- no support for the constructor
+  [`options`](https://github.com/websockets/ws/blob/master/doc/ws.md#new-websocketaddress-protocols-options)
+  argument in browsers
+
+## Usage
+
+You need to install both this package and [ws](https://github.com/websockets/ws):
+
+```
+> npm i isomorphic-ws ws
+```
+
+Then just require this package:
+
+```js
+const WebSocket = require('isomorphic-ws');
+
+const ws = new WebSocket('wss://echo.websocket.org/');
+
+ws.onopen = function open() {
+  console.log('connected');
+  ws.send(Date.now());
+};
+
+ws.onclose = function close() {
+  console.log('disconnected');
+};
+
+ws.onmessage = function incoming(data) {
+  console.log(`Roundtrip time: ${Date.now() - data.data} ms`);
+
+  setTimeout(function timeout() {
+    ws.send(Date.now());
+  }, 500);
+};
+```
+
+## License
+
+[MIT](LICENSE)

apps/did-wallet/node_modules/isomorphic-ws/browser.js

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+// https://github.com/maxogden/websocket-stream/blob/48dc3ddf943e5ada668c31ccd94e9186f02fafbd/ws-fallback.js
+
+var ws = null
+
+if (typeof WebSocket !== 'undefined') {
+  ws = WebSocket
+} else if (typeof MozWebSocket !== 'undefined') {
+  ws = MozWebSocket
+} else if (typeof global !== 'undefined') {
+  ws = global.WebSocket || global.MozWebSocket
+} else if (typeof window !== 'undefined') {
+  ws = window.WebSocket || window.MozWebSocket
+} else if (typeof self !== 'undefined') {
+  ws = self.WebSocket || self.MozWebSocket
+}
+
+export default ws

apps/did-wallet/node_modules/isomorphic-ws/index.d.ts

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+// Type definitions for isomorphic-ws
+// Run `npm install @types/ws` before using this.
+// Fix for https://github.com/heineiuo/isomorphic-ws/issues/8
+// If there is still something wrong, welcome issue.
+
+import WebSocket = require('ws')
+
+export = WebSocket

apps/did-wallet/node_modules/isomorphic-ws/node.js

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+"use strict";
+
+module.exports = require('ws');

apps/did-wallet/node_modules/isomorphic-ws/package.json

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+{
+  "name": "isomorphic-ws",
+  "version": "5.0.0",
+  "description": "Isomorphic implementation of WebSocket",
+  "main": "node.js",
+  "types": "index.d.ts",
+  "browser": "browser.js",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/heineiuo/isomorphic-ws.git"
+  },
+  "keywords": [
+    "browser",
+    "browsers",
+    "isomorphic",
+    "node",
+    "websocket",
+    "ws"
+  ],
+  "author": "@heineiuo",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/heineiuo/isomorphic-ws/issues"
+  },
+  "homepage": "https://github.com/heineiuo/isomorphic-ws#readme",
+  "peerDependencies": {
+    "ws": "*"
+  },
+  "files": [
+    "index.d.ts",
+    "node.js",
+    "browser.js",
+    "README.md"
+  ]
+}