doc(README), chore(splash, clients/reach-edu): document the dependency sweep and bump the splash to Astro 7

The workspace just completed a full dependency refresh — nats@2 to
@nats-io/transport-node@3 across all 10 services, TypeScript 6,
Rsbuild 2 with Module Federation 2.x, Svelte 5.56 — and the README's
tech-stack section now says so instead of leaving the versions implicit.

README changes:
- Build & runtime bullets name Rsbuild 2 and TypeScript 6 explicitly
- The NATS bullet records the @nats-io/transport-node v3 client and the
  migration off the legacy nats@2 package
- The app-structure tree gains the splash/ directory, which existed on
  disk but was absent from the map

Splash (splash/package.json):
- astro ^6.3.1 -> ^7.0.5, astro-pagefind ^1.8.6 -> ^2.0.0
- version bumped 0.0.1 -> 0.0.2

Also included:
- clients/reach-edu submodule pointer advanced to fd8c416 (a third
  strategy + deeper agentic-engineering corpus), already pushed on the
  submodule's origin/main

Files changed:
- README.md
- splash/package.json
- clients/reach-edu

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: mpstaton

README.md

@@ -12,8 +12,8 @@ The codebase is a federated set of small Svelte 5 microfrontends mounted into a
 ### Build & runtime
 
 - **pnpm** workspaces + **Turborepo**
-- **Rsbuild** with `@module-federation/rsbuild-plugin` — every app is an independently-served federated remote
-- **TypeScript** end-to-end
+- **Rsbuild 2** with `@module-federation/rsbuild-plugin` 2.x — every app is an independently-served federated remote
+- **TypeScript 6** end-to-end
 - **Docker Compose** for the backend stack (NATS + services)
 
 ### UI
@@ -24,7 +24,7 @@ The codebase is a federated set of small Svelte 5 microfrontends mounted into a
 
 ### Backend
 
-- **NATS** as the message bus — every service subscribes to a subject; the browser talks to the backend via the workspace capabilities router
+- **NATS** as the message bus — every service subscribes to a subject via the `@nats-io/transport-node` v3 client (migrated off the legacy `nats@2` package); the browser talks to the backend via the workspace capabilities router
 - **libSQL** / **JSON-stored row + response data** behind small TS services
 - **Anthropic** for free-form prompt enrichment (via `prompt-runner`)
 - **Search providers are pluggable** (via `social-search`): a `connectors/` seam with a common `Connector` interface, dispatched per-fire with an optional `provider_override`. **SearXNG** (self-hosted, no API key) is the default for the social packs; **Tavily** stays wired in as a peer for content-RAG packs. Response Reviewer's by-record view exposes both — each record has a SearXNG row and a Tavily row of per-pack run icons, so any source can be re-fired on any record through either provider (additive; never overrides accepted data)
@@ -75,6 +75,7 @@ augment-it/
 │   └── issues/                        # Filed-but-not-yet-executed decisions
 │
 ├── clients/                           # Per-tenant corpus trees (git submodules); funder dirs hold .md + binary PDFs
+├── splash/                            # GitHub Pages splash site (Astro 7 + Pagefind)
 ├── changelog/                         # Ship log — every coherent build session writes one
 ├── scripts/                           # dev.sh, backup-stores.sh, backfill-corpus-{record-uuid,published-at}.mjs
 ├── docker-compose.yml                 # NATS + services

clients/reach-edu

@@ -1,7 +1,7 @@
 {
   "name": "augment-it-splash",
   "type": "module",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "private": true,
   "description": "GitHub Pages splash for augment-it — a module-federation web app for AI-driven data augmentation.",
   "scripts": {
@@ -12,8 +12,8 @@
   },
   "dependencies": {
     "@astrojs/sitemap": "^3.7.2",
-    "astro": "^6.3.1",
-    "astro-pagefind": "^1.8.6",
+    "astro": "^7.0.5",
+    "astro-pagefind": "^2.0.0",
     "pagefind": "^1.5.2"
   }
 }