Pull request 2265: AG-27492-client-runtime-storage

Squashed commit of the following:

commit a164bace2e0333cf95622f34df7b0e79eac69f41
Merge: 6567cd330 184f476bd
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Aug 21 16:14:55 2024 +0300

    Merge branch 'master' into AG-27492-client-runtime-storage

commit 6567cd330ce76d4744f5eb990c09efdb5481aea9
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Tue Aug 20 16:45:43 2024 +0300

    all: imp code

commit 243123a404bb5279a27de18391fa58a9d3e6149b
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Thu Aug 15 19:15:54 2024 +0300

    all: add tests

commit 6489996878ab6bf2ec93c359599ae29e58e938a0
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Mon Aug 5 15:12:05 2024 +0300

    all: client runtime storage

internal/whois/whois.go

@@ -354,6 +354,19 @@ type Info struct {
 	Orgname string `json:"orgname,omitempty"`
 }
 
+// Clone returns a deep copy of the WHOIS info.
+func (i *Info) Clone() (c *Info) {
+	if i == nil {
+		return nil
+	}
+
+	return &Info{
+		City:    i.City,
+		Country: i.Country,
+		Orgname: i.Orgname,
+	}
+}
+
 // cacheItem represents an item that we will store in the cache.
 type cacheItem struct {
 	// expiry is the time when cacheItem will expire.