CVM keeps exiting and booting when started from the Dstack dashboard

I tried following the instructions in the README but can't get a working CVM from the Dstack dashboard. My understanding is that I don't really need a KMS+Gateway in a simple dev environment. Specially because I would need to setup a domain AFAICT. If this isn't supposed to work without a KMS+Gateway, then please let me know if there is any docs on how this domains are used so that I can do some setup locally that could work.

## Current config
- Ubuntu 24.04.3 LTS
- INTEL(R) XEON(R) GOLD 5515+ / 256G of RAM
- TDX is enabled in the BIOS, and I ran a CVM following canonical/tdx

## To reproduce
- clone the repo (v0.5.3)
- run the following from dtack repo
```bash
mkdir build
cd build
../build.sh hostcfg
../build.sh hostcfg
../build.sh dl 0.5.3
```
- changed `address` and `cvm.port_mapping.address` to `0.0.0.0` (this is a dev server) and ran `./dstack-vmm -c vmm.toml`
- On the website, I deployed a new cvm (didn't change much of the default) with
```yaml
version: '3.8'
services:
nginx:
image: nginx:latest
ports:
- "8080:80"
restart: always
```

(Note the "Compose Hash: 0xError calculating hash" error message)

Then the CVM keeps going from the booting to exited status and back to booting

I see this error in the logs:
```bash
[ 2.026193] dstack-prepare.sh[229]: Syncing system time...
[ 2.037770] dstack-prepare.sh[245]: 200 OK
[ 2.042779] dstack-prepare.sh[229]: Preparing dstack system...
[ 2.158823] dstack-prepare.sh[247]: 2025-09-15T09:33:29.127568Z INFO cmd_lib::builtins: Mounting host-shared
[ 2.167417] dstack-prepare.sh[247]: 2025-09-15T09:33:29.135874Z INFO cmd_lib::builtins: Copying host-shared files
[ 2.185335] dstack-prepare.sh[247]: 2025-09-15T09:33:29.154273Z INFO cmd_lib::builtins: Unmounting host-shared
[ 2.204061] dstack-prepare.sh[247]: 2025-09-15T09:33:29.172948Z INFO dstack_util::system_setup: System time will be synchronized by chronyd in background
[ 2.215256] dstack-prepare.sh[247]: 2025-09-15T09:33:29.183570Z INFO dstack_util::system_setup: No key provider is enabled, generating temporary app keys
[ 2.243090] dstack-prepare.sh[247]: Error: Failed to generate app keys
[FAILED] Failed to start DStack Guest Preparation Service.
[ 2.247257] dstack-prepare.sh[247]: Caused by:
See 'systemctl status dstack-prepare.service' for details.
[ 2.250387] dstack-prepare.sh[247]: 0: Failed to get quote
```

And this single line in the stderr
```bash
qemu-system-x86_64: cpus are not resettable, terminating
```