feat(swap): import .md files and webp transition from myst/current

Selective import from origin/myst/current (cf9c9b34):
- Add/update 255 .md files (full MyST conversion plus webp ref updates)
- Delete 175 PNG/JPG from docs/_static/images (webp twins already present)
- Delete 5 autotest topology.png (webp twins already present)

Preserved on swap (untouched):
- All .rst files (incremental swap pattern)
- conf.py, _ext/, _include/*.txt, .gitignore
- 115 canary md-*.md files
- 7 superpowers/specs/*.md design docs
- Logos vyos-logo.png / vyos-logo-icon.png (referenced by conf.py)

🤖 Generated by [robots](https://vyos.io)

1 files changed, 59 insertions, 0 deletions

diff --git a/docs/configuration/system/console.md b/docs/configuration/system/console.md
new file mode 100644
index 00000000..9017fa30
--- /dev/null
+++ b/docs/configuration/system/console.md
@@ -0,0 +1,59 @@
+(serial-console)=
+
+# Serial Console
+
+For the average user a serial console has no advantage over a console offered
+by a directly attached keyboard and screen. Serial consoles are much slower,
+taking up to a second to fill a 80 column by 24 line screen. Serial consoles
+generally only support non-proportional ASCII text, with limited support for
+languages other than English.
+
+There are some scenarios where serial consoles are useful. System administration
+of remote computers is usually done using {ref}`ssh`, but there are times when
+access to the console is the only way to diagnose and correct software failures.
+Major upgrades to the installed distribution may also require console access.
+
+```{cfgcmd} set system console device \<device\>
+
+Defines the specified device as a system console. Available console devices
+can be (see completion helper):
+* ``ttySN`` - Serial device name
+* ``ttyAMAN``- Serial device name for some arm64 systems
+* ``ttyUSBX`` - USB Serial device name
+* ``hvc0`` - Xen console
+```
+
+```{cfgcmd} set system console device \<device\> kernel
+
+When set, the selected serial console is used as the kernel boot console.
+When removed, the kernel boot console falls back to tty0.
+
+:::{note}
+Only one serial console can carry the ``kernel`` option.
+When VyOS is installed via serial console, this option is set automatically
+for the serial interface used during installation; usually ``ttyS0`` or
+``ttyAMA0``.
+:::
+```
+
+```{cfgcmd} set system console device \<device\> speed \<speed\>
+
+The speed (baudrate) of the console device. Supported values are:
+* ``1200`` - 1200 bps
+* ``2400`` - 2400 bps
+* ``4800`` - 4800 bps
+* ``9600`` - 9600 bps
+* ``19200`` - 19,200 bps
+* ``38400`` - 38,400 bps (default for Xen console)
+* ``57600`` - 57,600 bps
+* ``115200`` - 115,200 bps (default for serial console)
+
+:::{note}
+If you use USB to serial converters for connecting to your VyOS
+appliance please note that most of them use software emulation without flow
+control. This means you should start with a common baud rate (most likely
+9600 baud) as otherwise you probably can not connect to the device using
+high speed baud rates as your serial converter simply can not process this
+data rate.
+:::
+```
\ No newline at end of file