docs: trim README to a non-technical, user-facing page

README.md

@@ -8,15 +8,15 @@
 
 Two-way **Git** sync between your Obsidian vault and your private [Agentage Memory](https://agentage.io) - the shared memory layer for every AI. Your notes stay plain Markdown that you own, and Claude, ChatGPT, Cursor, and any MCP client read and write the *same* files.
 
-> ⚠️ **Status:** **desktop only** today (`isDesktopOnly`). Desktop git sync + Agentage sign-in (OAuth 2.1 / PKCE) work. Mobile is planned (see [Mobile](#mobile-planned)); background auto-sync is next.
+> ⚠️ **Status:** **desktop only** for now - mobile is on the way.
 
 ## Features
 
 - 🔄 **Two-way Git sync** - clone / pull / commit / push your vault to `sync.agentage.io`. The server is a bare git repo per memory that you can clone or export anytime.
 - 🧠 **Pick or create a memory** - choose which memory this vault syncs into, or create a new one, from a single dialog (search your memories, see file/folder counts).
 - 🤝 **Shared with every AI over MCP** - the same memory is exposed at `memory.agentage.io`, so Claude / ChatGPT / Cursor read and write the same notes. [How to connect →](https://agentage.io/connect)
-- 🔐 **Sign in once** - OAuth 2.1 / PKCE; the token is kept in Obsidian's encrypted secret storage, never in your notes or config.
-- 🧩 **Plain Markdown, safe merges** - notes stay `.md`; concurrent edits reconcile with a 3-way merge (per-field frontmatter + diff3 body), and conflicts surface as markers + a note - never a silent drop.
+- 🔐 **Sign in once** - a secure browser sign-in; your access is kept in Obsidian's encrypted storage, never in your notes or config.
+- 🧩 **Plain Markdown, safe merges** - notes stay `.md`; edits from different places merge automatically, and anything that can't be is flagged with a note - never a silent drop.
 - 📊 **Status at a glance** - a status-bar dot (green / red / gray) with a click menu: Sync now, Open dashboard, settings. The same actions are in the command palette and the ribbon.
 
 ## Installation
@@ -46,16 +46,6 @@ From the [latest release](https://github.com/agentage/obsidian-sync/releases/lat
 - **Memory** - the memory this vault syncs into; change it or create one via the chooser.
 - **Expose remote MCP** - let AI apps read and write this memory (on by default).
 
-## How it works
-
-- Your notes are normal `.md` files in your vault - and a bare git repo per memory on the server, which is the source of truth.
-- **Sync** runs a real git client (vendored [isomorphic-git](https://github.com/isomorphic-git/isomorphic-git)) over Obsidian's network layer, authenticated with your sign-in token (sent only as an `Authorization` header, never in the URL). It never force-pushes - it commits before pulling and 3-way merges.
-- The same repo is what AI apps read and write over MCP - one memory, every AI.
-
-## Mobile (planned)
-
-This release is **desktop only** (`isDesktopOnly: true`), so Obsidian won't offer it on phones yet. The git engine already runs over Obsidian's vault adapter (no Node APIs on the sync path), so the groundwork is in place - what's left is verifying sign-in and first sync on real iOS/Android. Mobile will be re-enabled once that's solid.
-
 ## Privacy & network use
 
 - **Account required:** you need an agentage account to sign in and sync.
@@ -65,28 +55,17 @@ This release is **desktop only** (`isDesktopOnly: true`), so Obsidian won't offe
 - **Privacy policy:** <https://agentage.io/privacy>. **Terms of Service:** <https://agentage.io/terms>.
 - **No client-side telemetry.** Your notes live in your own per-tenant git repo (EU-hosted) and as plain Markdown on your machine; the OAuth token is kept in Obsidian's encrypted secret storage, never in `vaults.json` or `data.json`.
 
-## Building from source
-
-```bash
-npm install
-npm run dev      # esbuild watch → main.js
-npm run build    # production bundle
-npm run verify   # type-check + lint + format + test + build + doc/host/bundle checks
-```
-
-Tests run in Node with Vitest (the git round-trips spawn git's own `git-http-backend`, so the `git` binary must be on `PATH`). App-level end-to-end tests live in the [`agentage/e2e`](https://github.com/agentage/e2e) repo.
-
 ## Third-party
 
 - **[isomorphic-git](https://github.com/isomorphic-git/isomorphic-git)** (MIT) - pure-JS git client.
 - **js-yaml** (MIT) + **diff3** - frontmatter parsing and 3-way merge.
 
 ## FAQ
 
-- **Why desktop only?** Mobile sign-in (the `obsidian://` callback inside Obsidian's mobile WebView) isn't device-verified yet, so the plugin is `isDesktopOnly` until it is. The git engine is already mobile-safe - see [Mobile (planned)](#mobile-planned).
-- **Where is my sign-in token stored?** In Obsidian's encrypted secret storage (and a 0600 `~/.agentage/auth.json` on desktop, shared with the agentage CLI) - never in `vaults.json` or `data.json`.
-- **What happens on a conflict?** Nothing is silently dropped. Concurrent edits 3-way merge (per-field frontmatter + diff3 body); anything that can't auto-merge gets conflict markers and an **Agentage Sync Conflicts** note listing the files. Resolve the markers, then sync again.
-- **Can I leave / export?** Yes - your memory is a plain git repo you can clone or export anytime, and your notes stay as Markdown on disk.
+- **Why desktop only?** Mobile sign-in isn't fully tested on phones yet, so the plugin is desktop-only for now. Mobile is on the way.
+- **Where is my sign-in token stored?** In Obsidian's encrypted storage - never in your notes or plugin settings.
+- **What happens on a conflict?** Nothing is silently dropped. If the same note changed in two places, anything that can't be merged automatically is flagged in an **Agentage Sync Conflicts** note listing the files. Fix them, then sync again.
+- **Can I leave or export?** Yes - you can export your memory anytime, and your notes stay as plain Markdown files on your computer.
 
 ## Support