Docs: landing scope memo, deployment record, VS Code extension exploration

AGENTS.md

@@ -46,7 +46,9 @@ port legacy code.
   lazy-loads Vega, so `/` stays light. The PWA service worker and manifest are scoped to
   `/app/`, leaving the landing uncontrolled and always-fresh. **`/learn/` is a second such
   entry** (`src/learn/`) — the markdown-authored deep-dive section, under the same rules
-  (see architecture 11).
+  (see architecture 11). The landing depicts only shipped behavior: live demos run the
+  real core, and staged visuals (the editor still) mirror the app's actual strings —
+  CodeLens labels, validation messages — never invented UI.
 
 See [`docs/architecture/`](docs/architecture/00-overview.md) for the patterns behind each
 layer (state, persistence, modals, routing, rendering, inference, relationships) and
@@ -147,6 +149,11 @@ Invoke with `/<name>` (defined in `.claude/skills/`):
   Recurring findings become `docs/architecture/` rules and new `/alignment` checks.
 - **`/release`** — bump version, update the changelog, prepare a git tag.
 
+### Deployment
+
+Push to `main` auto-deploys to **astrolabe-viz.com** (Cloudflare Pages, Git-connected).
+Hosting, analytics posture, and distribution facts: **[docs/deployment.md](docs/deployment.md)**.
+
 ### Versioning
 
 Simplified semver `0.x.y` (pre-1.0): minor for features/behavior, patch for fixes. Single