docs: integrate second autonomous migration wave

docs/USER-GUIDE/README.md

@@ -1,6 +1,6 @@
 # User Guide
 
-> **Status:** Initial migration active. The quickstart is current; additional user pages remain to be migrated.
+> **Status:** Partially migrated. The quickstart, web-dashboard reference, and Discord conversation workflow are current.
 
 This book is the canonical home for end-user workflows, user-visible behavior, product concepts, and user troubleshooting. Keep installation, deployment, security controls, and recovery procedures in [`ADMIN-GUIDE/`](../ADMIN-GUIDE/); keep implementation detail in [`DEVELOPER-GUIDE/`](../DEVELOPER-GUIDE/).
 
@@ -9,6 +9,8 @@ This book is the canonical home for end-user workflows, user-visible behavior, p
 - [Documentation atlas](../README.md) — placement rules and source-of-truth boundaries.
 - [Documentation sitemap](../SITEMAP.md) — existing navigation is transitional and still contains legacy paths.
 - [Quickstart](getting-started/quickstart.md) — install Mosaic, complete setup, and launch a session.
+- [Web dashboard](product/web-dashboard.md) — current routes, navigation, chat persistence, projects/tasks views, settings, and admin behavior.
+- [Discord conversations](workflows/discord-conversations.md) — current authorized parent-channel, thread, attachment, and control workflow.
 
 ## Chapter map
 
@@ -16,12 +18,15 @@ This book is the canonical home for end-user workflows, user-visible behavior, p
 | ------------------ | ------------------------------------------------------------- | ---------------------------------------------------- |
 | `getting-started/` | First-use setup, orientation, and quickstarts.                | Quickstart is current; additional pages are planned. |
 | `concepts/`        | User-facing terminology, product concepts, and mental models. | Scaffold only.                                       |
-| `workflows/`       | Task-oriented procedures for using Mosaic Stack.              | Scaffold only.                                       |
+| `workflows/`       | Task-oriented procedures for using Mosaic Stack.              | Discord conversation workflow is current.            |
+| `product/`         | Current product surfaces and visible behavior.                | Web dashboard reference is current.                  |
 | `troubleshooting/` | User-visible failures, diagnostics, and fixes.                | Scaffold only.                                       |
 
 ### Current pages
 
 - [Quickstart](getting-started/quickstart.md) — the verified installed-CLI first-use path.
+- [Web dashboard](product/web-dashboard.md) — verified current Next.js dashboard behavior and limitations.
+- [Discord conversations](workflows/discord-conversations.md) — verified current Discord user workflow.
 
 Every promoted page must be added to this index and to [`SITEMAP.md`](../SITEMAP.md) in the same migration slice.