docs(eink): the two e-ink builds in the docs and the site's sim

Docs: the E-ink section describes the landscape and portrait builds, what
the tall screens add, and the settings, with three screenshots; the e-ink
build flags; the release file names. Sim: each orientation gets its own
factory, so a page can load both, and simEinkScale 0 leaves the canvas'
CSS size to the page. CI builds both into solo-sim-wasm.zip (wasm/eink/).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Jakub
2026-10-02 21:38:38 +02:00
co-authored by Claude Opus 5.5
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## E-ink
The e-ink Wio Tracker L1 (250 × 122) has a few settings of its own in
Settings › Display:
The e-ink Wio Tracker L1 (250 × 122) comes in two builds, one per
orientation, since every screen is laid out for one shape:
- **Rotation**: landscape or portrait, applied at once; every screen reflows.
- **Joystick rotation**, independent of the display's.
- **Full refresh**: how many partial updates between full ones, against
- **Landscape** writes in a larger 8 × 13 font, with larger icons.
- **Portrait** keeps the 6 × 9 font and fits more lines.
| Landscape | Portrait | |
| :---: | :---: | :---: |
| ![A channel in landscape](./img/eink-channel.png) | ![Clock and calendar in portrait](./img/eink-clock.png) | ![The sky view in portrait](./img/eink-sky.png) |
The e-ink screens show more than the OLED, the portrait one most:
- a month calendar (portrait) under the clock and on the lock screen, the
alarm's days marked;
- whole message bubbles;
- charts of the last 8 hours on the Status screen;
- a compass rose and the path's hops on a contact's details, and direction
arrows in the node list;
- under a saved trail (portrait), its map and elevation profile.
Settings › Display has a few settings of its own:
- **Rotation** turns the screen upside down; the joystick turns with it.
- **Joystick** rotation, for a joystick mounted another way.
- **Full rfsh**: how many partial updates between full ones, against
ghosting.
Clock seconds are hidden by default, and live timers refresh coarsely, to
spare the panel.
The panel refreshes only when what it shows changes. Times are shown to the
minute (no seconds counting up), and clock seconds are hidden by default.
## Wio Tracker L2