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/ipfs-unixfs-importer/src/layout/balanced.ts

@@ -0,0 +1,27 @@
+import batch from 'it-batch'
+import type { FileLayout } from './index.js'
+import type { InProgressImportResult } from '../index.js'
+
+const DEFAULT_MAX_CHILDREN_PER_NODE = 174
+
+export interface BalancedOptions {
+  maxChildrenPerNode?: number
+}
+
+export function balanced (options?: BalancedOptions): FileLayout {
+  const maxChildrenPerNode = options?.maxChildrenPerNode ?? DEFAULT_MAX_CHILDREN_PER_NODE
+
+  return async function balancedLayout (source, reduce): Promise<InProgressImportResult> {
+    const roots = []
+
+    for await (const chunked of batch(source, maxChildrenPerNode)) {
+      roots.push(await reduce(chunked))
+    }
+
+    if (roots.length > 1) {
+      return balancedLayout(roots, reduce)
+    }
+
+    return roots[0]
+  }
+}