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/p-defer/readme.md

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+# p-defer
+
+> Create a deferred promise
+
+[Don't use this unless you know what you're doing.](https://github.com/petkaantonov/bluebird/wiki/Promise-anti-patterns#the-deferred-anti-pattern) Prefer the `Promise` constructor.
+
+## Install
+
+```sh
+npm install p-defer
+```
+
+## Usage
+
+```js
+import pDefer from 'p-defer';
+
+function delay(milliseconds) {
+	const deferred = pDefer();
+	setTimeout(deferred.resolve, milliseconds, '🦄');
+	return deferred.promise;
+}
+
+console.log(await delay(100));
+//=> '🦄'
+```
+
+*The above is just an example. Use [`delay`](https://github.com/sindresorhus/delay) if you need to delay a promise.*
+
+## API
+
+### pDefer()
+
+Returns an `object` with a `promise` property and functions to `resolve()` and `reject()`.
+
+## Related
+
+- [p-lazy](https://github.com/sindresorhus/p-lazy) - Create a lazy promise that defers execution until `.then()` or `.catch()` is called
+- [More…](https://github.com/sindresorhus/promise-fun)