Pull request 2490: AGDNS-2966-ossvc

Squashed commit of the following:

commit 444c1d8fba64271f0348eaa5d979086b0f383eca
Merge: 79acd1e3e 68fac0147
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Oct 7 16:31:18 2025 +0300

    Merge branch 'master' into AGDNS-2966-ossvc

commit 79acd1e3e7958ab7c697b4726ec9e92d83186170
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Oct 7 16:04:14 2025 +0300

    ossvc: imp log, doc

commit bd030f01a3d95197c61a2866bc80c336f7ec66ef
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Oct 6 18:31:15 2025 +0300

    ossvc: imp docs

commit ff41521552962b78f3c88e9a1d0ad55f2a762a82
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Oct 6 14:03:19 2025 +0300

    ossvc: imp docs, code

commit b097b19d0acb7daba3351774e2f7f9cf621293be
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Oct 2 19:52:45 2025 +0300

    ossvc: imp code, docs

commit af5c1b61c5126ae46672fa108cf3f1243b807946
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Sep 29 15:35:11 2025 +0300

    ossvc: introduce package