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/web5-dwn/node_modules/catering/LICENSE

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+The MIT License (MIT)
+
+Copyright © 2018 Vincent Weevers
+
+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/web5-dwn/node_modules/catering/index.d.ts

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+export function fromCallback<T, S extends symbol>(callback: Callback<T> | undefined, symbol: S)
+  : Callback<T> & { [K in S]?: Promise<T> };
+
+export function fromCallback<T>(callback: Callback<T> | undefined)
+  : Callback<T> & { promise?: Promise<T> };
+
+export function fromPromise<T>(promise: Promise<T>, callback: Callback<T> | undefined)
+  : Promise<T> | undefined;
+
+type Callback<T> = (err: Error | null, result: T) => void;

apps/web5-dwn/node_modules/catering/index.js

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+'use strict'
+
+var nextTick = require('./next-tick')
+
+exports.fromCallback = function (callback, symbol) {
+  if (callback === undefined) {
+    var promise = new Promise(function (resolve, reject) {
+      callback = function (err, res) {
+        if (err) reject(err)
+        else resolve(res)
+      }
+    })
+
+    callback[symbol !== undefined ? symbol : 'promise'] = promise
+  } else if (typeof callback !== 'function') {
+    throw new TypeError('Callback must be a function')
+  }
+
+  return callback
+}
+
+exports.fromPromise = function (promise, callback) {
+  if (callback === undefined) return promise
+
+  promise
+    .then(function (res) { nextTick(() => callback(null, res)) })
+    .catch(function (err) { nextTick(() => callback(err)) })
+}

apps/web5-dwn/node_modules/catering/next-tick-browser.js

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+module.exports = typeof queueMicrotask === 'function' ? queueMicrotask : (fn) => Promise.resolve().then(fn)

apps/web5-dwn/node_modules/catering/next-tick.js

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+module.exports = process.nextTick.bind(process)

apps/web5-dwn/node_modules/catering/package.json

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+{
+  "name": "catering",
+  "version": "2.1.1",
+  "description": "Simple utility to allow your module to be consumed with a callback or promise",
+  "license": "MIT",
+  "author": "Vincent Weevers",
+  "scripts": {
+    "test": "standard && node test.js",
+    "test-browsers-local": "airtap test.js"
+  },
+  "types": "index.d.ts",
+  "files": [
+    "index.js",
+    "index.d.ts",
+    "next-tick.js",
+    "next-tick-browser.js"
+  ],
+  "browser": {
+    "./next-tick.js": "./next-tick-browser.js"
+  },
+  "devDependencies": {
+    "airtap": "^4.0.4",
+    "airtap-playwright": "^1.0.1",
+    "standard": "^16.0.4",
+    "tape": "^5.4.0"
+  },
+  "keywords": [
+    "callback",
+    "promise",
+    "promisify"
+  ],
+  "engines": {
+    "node": ">=6"
+  },
+  "repository": "vweevers/catering",
+  "bugs": "https://github.com/vweevers/catering/issues",
+  "homepage": "https://github.com/vweevers/catering"
+}

apps/web5-dwn/node_modules/catering/readme.md

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+# catering
+
+**Cater to callback and promise crowds.**  
+Simple utility to allow your module to be consumed with a callback or promise. For Node.js and browsers.
+
+[![npm status](https://img.shields.io/npm/v/catering.svg)](https://www.npmjs.com/package/catering)
+[![Node version](https://img.shields.io/node/v/catering.svg)](https://www.npmjs.com/package/catering)
+[![Test](https://img.shields.io/github/workflow/status/vweevers/catering/Test?label=test)](https://github.com/vweevers/catering/actions/workflows/test.yml)
+[![Standard](https://img.shields.io/badge/standard-informational?logo=javascript&logoColor=fff)](https://standardjs.com)
+
+## Menu
+
+If your module internally uses callbacks:
+
+```js
+const { fromCallback } = require('catering')
+const kPromise = Symbol('promise')
+
+module.exports = function (callback) {
+  callback = fromCallback(callback, kPromise)
+  queueMicrotask(() => callback(null, 'example'))
+  return callback[kPromise]
+}
+```
+
+If your module internally uses promises:
+
+```js
+const { fromPromise } = require('catering')
+
+module.exports = function (callback) {
+  return fromPromise(Promise.resolve('example'), callback)
+}
+```
+
+Either way your module can now be consumed in two ways:
+
+```js
+example((err, result) => {})
+const result = await example()
+```
+
+When converting from a promise to a callback, `fromPromise` calls the callback in a next tick to escape the promise chain and not let it steal your beautiful errors.
+
+## Install
+
+With [npm](https://npmjs.org) do:
+
+```
+npm install catering
+```
+
+## License
+
+[MIT](LICENSE) © 2018-present Vincent Weevers. Originally extracted from [`levelup`](https://github.com/Level/levelup/blob/37e0270c8c29d5086904e29e247e918dddcce6e2/lib/promisify.js).