feat: a node map and a calendar on ui-new, a banner switch on the L2

- Nearby › Map (ui-new): the positioned nodes and you on one view, scaled
  to fit, with north, a scale bar and the selected node's name and
  distance; Left / Right picks a node, Up / Down zooms on it, Enter opens it.
- Clock tools › Calendar (ui-new): the month with today and the alarm's
  days; a tight grid on small screens, Left / Right pages the months.
- L2 Settings: a Message banner switch (on / off) in place of ui-new's
  three-way alert setting.
- Simulator: sim_nodes() puts eight positioned contacts around Kraków.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/solo/contacts.md

@@ -13,6 +13,7 @@ for what you can do with it:
 
 | Option | Does |
 | ------ | ---- |
+| Map | Every node with a position on a map (below) |
 | Navigate | Distance and bearing to the node; follows it if it shares its position live |
 | Ping | Sends a ping and shows the round trip time and SNR |
 | Save waypoint, Set as target | Its position as a waypoint, or as the [Locator](./navigation.md#locator) target |
@@ -20,6 +21,13 @@ for what you can do with it:
 | Admin | Remote admin, for a repeater or room (below) |
 | Discover scan | Asks the repeaters, rooms and sensors in direct range to answer, with their signal |
 
+**Map** shows the nodes of the current filter that have a position, with you
+and the target, fitted to the screen, north up, with a scale. Nodes are dots
+(a diamond for a live share); the selected one is boxed, and the line under
+the map gives its name and distance, with **+n** when others sit on the same
+spot. **Left / Right** selects the next node, **Up / Down** zooms in on it and
+back out, **Enter** opens its details and **Hold Enter** its options.
+
 > [!NOTE]
 > **Wio Tracker L2:** the **Nodes** app. Filter chips at the top, the sort in
 > the header, and a map button that shows every node with a position. A

docs/solo/getting-started.md

@@ -77,6 +77,10 @@ Settings › Display › Message alert picks how a new message shows: **Normal**
 blinking for a moment, covering nothing else) or **Off** (no alert; the sound
 and waking the screen still follow their own settings).
 
+> [!NOTE]
+> **Wio Tracker L2:** Settings › Display › **Message banner** turns the banner
+> on or off; tapping it opens the conversation.
+
 The battery sits at the top right, as an icon, a percentage or the voltage
 (Settings › Display). A small bolt beside it means external power is
 connected over USB.

docs/solo/tools.md

@@ -28,6 +28,9 @@ Settings.
 - **Timer**: a countdown that rings when it reaches zero, whatever screen
   you're on.
 - **Stopwatch**.
+- **Calendar**: the month with today marked and the alarm's days
+  underlined; **Left / Right** pages through the months, **Enter** comes
+  back to this one.
 
 Any key silences the ringing; it stops by itself after a minute.