feat(settings,docs): vault subpath becomes the chats folder, panel screenshots in the readme

README.md

@@ -7,6 +7,10 @@ Two things:
 - **The panel**: Beaver's conversations next to your notes - the master thread, branches, deep chats - with the live tree of tool calls and subagents, the composer, and the same actions the admin has (branch with a seed, return a branch to Telegram or hide it, the memory flag, close with a digest). A narrow sidedock column, a full tab, or the phone screen. It follows the active note's `conversation_id` unless you pin it.
 - **Send the current note** to Beaver's markdown frontend (`POST /chat/stream`) and stream the agent's reply back into the buffer.
 
+![The panel as a tab: the conversation rail on the left, the master thread with its tool calls on the right](docs/panel-tab.webp)
+
+![The panel as a column in the right sidedock, next to the note](docs/panel-column.webp)
+
 ## Commands
 
 - **Beaver: Open panel in a tab** - the wide layout with the conversation rail on the left (also the ribbon icon).
@@ -20,7 +24,7 @@ The UI is `beaver-gateway/ui/src/lib/panel`, compiled into this plugin by `esbui
 
 Theme: `src/tailwind.css` maps the panel's tokens onto Obsidian's variables on `.beaver-root`, exactly as beaver-calendar does with `.bcal-root` - the app's font, accent, radii and the current theme, light or dark. Menus and dialogs portal to a `.beaver-root.beaver-portal` layer on `body`, above the sidedocks.
 
-Markdown in the thread goes through Obsidian's `MarkdownRenderer`: `[[links]]` open the note, external links open the browser. A deep chat's row offers **Open note** (its markdown binding, under the vault subpath).
+Markdown in the thread goes through Obsidian's `MarkdownRenderer`: `[[links]]` open the note, external links open the browser. A deep chat's row offers **Open note** (its markdown binding, under the chats folder).
 
 Layout: below 48rem of panel width the conversation switcher sits in the header (kind, title, live dot, follow toggle); wider than that the grouped rail (master, branches, deep chats, jobs) sits on the left. Right-click a row for its actions; on touch the `…` button is always visible. `↑`/`↓` walk the rows, `/` jumps to the search, `⌘↩` sends.
 
@@ -29,7 +33,7 @@ Layout: below 48rem of panel width the conversation switcher sits in the header
 - **Base URL** - markdown frontend root, e.g. `https://host/md`.
 - **API origin** - where `/api/…` lives; empty derives it from the base URL (`…/md` → `…`).
 - **Bearer token** - `messages` scope for sending, `api` scope for the panel (or a `*` bootstrap token).
-- **Vault subpath** - the folder in this vault that maps to the gateway's vault root.
+- **Chats folder** - the folder in this vault where the deep chats live, the one the gateway's markdown frontend writes to. Paths the gateway hands out are relative to it.
 
 Changing settings remounts open panels.