…software-properties-common #2982 (#2983)

To avoid service disruptions during rolling
deployments, only register a newly started replica
to receive requests after all its probes pass, not
immediately after it becomes `running`.

* [Changelog] Introducing service probes

* Fix linter

Closes: #2974

* Do not auto-delete empty fleets that allow 0 nodes

* Refactor offers filtering

* Respect fleet nodes.max

* Fix replicas typing

* Support provisioning in empty fleets

* Rebase migrations

* Prioritize fleet choice by capacity and offer price

* Unassign run from fleet for retrying

* Comment on optimal fleet choice

* Refactor fleet/instance selects to fix for update with outer join

* If no fleets have available offers, create a new fleet

* Revert respect nodes.max

* Set nodes for autocreated fleet

* Forbid new fleets creation with fleets specified

* Use Range for replicas

* Ensure models Config is inherited

* Rebase migrations

* Use fleets with no instances if fleets specified

* Fix tests

* Fix tests

* dstackai/dstack-cloud#296

* Move tour button

Fixes: #2997

* The logs section is too short in the UI #2961

* The logs section is too short in the UI #2961

* remove `dstack init` prerequisite, as repos are optional
  since 0.19.25
* replace repo paths with `files`

Co-authored-by: peterschmidt85 <[email protected]>

1. Updated no repo initialized warning message
2. Added logging when config validation errors

Updated version