perf: convert all images to WebP with PDF fallback

Add WebP versions of all 187 PNG/JPG images (38MB → 17MB, 55% reduction).
Update RST/MD references to use Sphinx wildcard syntax (.*) so HTML builds
use WebP while PDF/LaTeX builds fall back to original PNG/JPG.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2 files changed, 32 insertions, 32 deletions

diff --git a/docs/installation/virtual/gns3.rst b/docs/installation/virtual/gns3.rst
index 31bb6887..2c0b5224 100644
--- a/docs/installation/virtual/gns3.rst
+++ b/docs/installation/virtual/gns3.rst
@@ -35,54 +35,54 @@ in GNS3.
 Go to the GNS3 **File** menu, click **New template**, and select
 **Manually create a new Template**.
 
-.. figure:: /_static/images/gns3-01.png
+.. figure:: /_static/images/gns3-01.*
 
 Select **Qemu VMs** and then click the ``New`` button.
 
-.. figure:: /_static/images/gns3-02.png
+.. figure:: /_static/images/gns3-02.*
 
 Write a name for your VM, such as "VyOS", and click ``Next``.
 
-.. figure:: /_static/images/gns3-03.png
+.. figure:: /_static/images/gns3-03.*
 
 Select **qemu-system-x86_64** as Quemu binary, then **512MB** of RAM
 and click ``Next``.
 
-.. figure:: /_static/images/gns3-04.png
+.. figure:: /_static/images/gns3-04.*
 
 Select **telnet** as your console type and click ``Next``.
 
-.. figure:: /_static/images/gns3-05.png
+.. figure:: /_static/images/gns3-05.*
 
 Select **New image** for the base disk image of your VM and click
 ``Create``.
 
-.. figure:: /_static/images/gns3-06.png
+.. figure:: /_static/images/gns3-06.*
 
 Use the defaults in the **Binary and format** window and click
 ``Next``.
 
-.. figure:: /_static/images/gns3-07.png
+.. figure:: /_static/images/gns3-07.*
 
 Use the defaults in the **Qcow2 options** window and click ``Next``.
 
-.. figure:: /_static/images/gns3-08.png
+.. figure:: /_static/images/gns3-08.*
 
 Set the disk size to 2000 MiB, and click ``Finish`` to end the **Quemu
 image creator**.
 
-.. figure:: /_static/images/gns3-09.png
+.. figure:: /_static/images/gns3-09.*
 
 Click ``Finish`` to end the **New QEMU VM template** wizard.
 
-.. figure:: /_static/images/gns3-10.png
+.. figure:: /_static/images/gns3-10.*
 
 Now you need to edit the VM settings.
 
 In the **Preferences** window, with **Qemu VMs** selected and your new VM
 selected, click the ``Edit`` button.
 
-.. figure:: /_static/images/gns3-11.png
+.. figure:: /_static/images/gns3-11.*
 
 In the **General settings** tab of your **QEMU VM template
 configuration**, do the following:
@@ -92,17 +92,17 @@ configuration**, do the following:
 * In **Category** select in which group you want to find your VM.
 * Set the **Boot priority** to **CD/DVD-ROM**.
 
-.. figure:: /_static/images/gns3-12.png
+.. figure:: /_static/images/gns3-12.*
 
 At the **HDD** tab, change the Disk interface to **sata** to speed up
 the boot process.
 
-.. figure:: /_static/images/gns3-13.png
+.. figure:: /_static/images/gns3-13.*
 
 At the **CD/DVD** tab click on ``Browse...`` and locate the VyOS image
 you want to install.
 
-.. figure:: /_static/images/gns3-14.png
+.. figure:: /_static/images/gns3-14.*
 
 .. note:: You probably will want to accept to copy the .iso file to your
    default image directory when you are asked.
@@ -111,17 +111,17 @@ In the **Network** tab, set the number of adapters to **0**, set the
 **Name format** to **eth{0}**, and set the **Type** to **Paravirtualized
 Network I/O (virtio-net-pci)**.
 
-.. figure:: /_static/images/gns3-15.png
+.. figure:: /_static/images/gns3-15.*
 
 In the **Advanced** tab, unmark the checkbox **Use as a linked base
 VM** and click ``OK``, which will save and close the **QEMU VM template
 configuration** window.
 
-.. figure:: /_static/images/gns3-16.png
+.. figure:: /_static/images/gns3-16.*
 
 At the general **Preferences** window, click ``OK`` to save and close.
 
-.. figure:: /_static/images/gns3-17.png
+.. figure:: /_static/images/gns3-17.*
 
 
 .. _vyos_installation:
@@ -157,21 +157,21 @@ necessary as outlined below:
 
 **General settings** tab: Set the boot priority to **HDD**
 
-.. figure:: /_static/images/gns3-20.png
+.. figure:: /_static/images/gns3-20.*
   
 **CD/DVD** tab: Clear the **Image** entry field to unmount the installation
 image.
 
-.. figure:: /_static/images/gns3-21.png
+.. figure:: /_static/images/gns3-21.*
 
 Set the number of required network adapters. For example, set it to **4**.
 
-.. figure:: /_static/images/gns3-215.png
+.. figure:: /_static/images/gns3-215.*
 
 **Advanced** settings tab: Check the **Use as a linked
 base VM** checkbox and click ``OK`` to save the changes.
 
-.. figure:: /_static/images/gns3-22.png
+.. figure:: /_static/images/gns3-22.*
 
 The VyOS VM is now ready to be deployed.
 
diff --git a/docs/installation/virtual/libvirt.rst b/docs/installation/virtual/libvirt.rst
index 20b3ff1a..5da1503f 100644
--- a/docs/installation/virtual/libvirt.rst
+++ b/docs/installation/virtual/libvirt.rst
@@ -123,28 +123,28 @@ Deploy from ISO
 
 2. Choose ``Local install media`` (ISO)
 
-.. figure:: /_static/images/virt-libvirt-01.png
+.. figure:: /_static/images/virt-libvirt-01.*
 
 3. Choose the path to the VyOS ISO image. Select any Debian-based operating
    system.
 
-.. figure:: /_static/images/virt-libvirt-02.png
+.. figure:: /_static/images/virt-libvirt-02.*
 
 4. Choose Memory and CPU
 
-.. figure:: /_static/images/virt-libvirt-03.png
+.. figure:: /_static/images/virt-libvirt-03.*
 
 5. Disk size
 
-.. figure:: /_static/images/virt-libvirt-04.png
+.. figure:: /_static/images/virt-libvirt-04.*
 
 6. Name of VM and network selection
 
-.. figure:: /_static/images/virt-libvirt-05.png
+.. figure:: /_static/images/virt-libvirt-05.*
 
 7. Then the system will be taken to the console.
 
-.. figure:: /_static/images/virt-libvirt-06.png
+.. figure:: /_static/images/virt-libvirt-06.*
 
 .. _libvirt:virt-manager_qcow2:
 
@@ -163,24 +163,24 @@ Download the predefined VyOS ``.qcow2`` image.
 
 2. Choose ``Import existing disk`` image
 
-.. figure:: /_static/images/virt-libvirt-qc-01.png
+.. figure:: /_static/images/virt-libvirt-qc-01.*
 
 3. Choose the path to the ``vyos_kvm.qcow2`` image that you downloaded.
    Select any Debian-based operating system.
 
-.. figure:: /_static/images/virt-libvirt-qc-02.png
+.. figure:: /_static/images/virt-libvirt-qc-02.*
 
 4. Choose Memory and CPU
 
-.. figure:: /_static/images/virt-libvirt-03.png
+.. figure:: /_static/images/virt-libvirt-03.*
 
 5. Name of VM and network selection
 
-.. figure:: /_static/images/virt-libvirt-05.png
+.. figure:: /_static/images/virt-libvirt-05.*
 
 6. Then the system will be taken to the console.
 
-.. figure:: /_static/images/virt-libvirt-qc-03.png
+.. figure:: /_static/images/virt-libvirt-qc-03.*