Coder Connect fails to connect

First of all, thanks for this, it's been a bit frustrating being a Linux using Coder admin for an org that is mostly on Macbooks and not able to talk to people about Coder Desktop when it looks like it might be very useful for some workflows in our company.

Probably our biggest Coder power user is also a Linux user so will be excited for this.

I also appreciate this is still early days so you're probably expecting a lot of bugs etc.

When I start Coder Connect it fails with:

```
Failed to start CoderVPN: Failed to start VPN. Service reported failure: The downloaded Coder CLI reports that vpn-daemon is not supported on this platform for this deployment build. -> Unable to read beyond the end of the stream.
```

System details:

```
❯ uname -a
Linux laptom 6.17.0-14-generic #14~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Jan 15 15:52:10 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

❯ cat /etc/*release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=24.04
DISTRIB_CODENAME=noble
DISTRIB_DESCRIPTION="Ubuntu 24.04.4 LTS"
PRETTY_NAME="Ubuntu 24.04.4 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04.4 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo
```

We also run Tailscale and that's needed to reach our Coder control plane in case that has any impact on things. IIRC Coder Desktop on Mac and Windows had issues with connecting to workspaces when you already had a VPN active a long time ago but I don't remember if that got fixed.

I'm running it via an installed deb that I built with:

```
VERSION=0.0.1-fb8e9fd7782106401ad2995f28a37f5e99d9f1bb ./Packaging.Linux/build-deb.sh amd64
```

and installed with:

```
sudo apt install ./coder-desktop_0.0.1-fb8e9fd7782106401ad2995f28a37f5e99d9f1bb_amd64.deb
```

Reproduce the failure by building the amd64 package with Packaging.Linux/build-deb.sh and starting Coder Connect on Ubuntu 24.04 while Tailscale is active. Trace the downloaded Coder CLI and vpn-daemon startup path; done means the installed desktop starts CoderVPN and connects without the reported platform-support error.

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