Fix remote initiator host name

[ianton-ru]

Changelog category (leave one):

• Bug Fix (user-visible misbehavior in an official stable release)

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Solved #1549
Fix remote initiator host name

Documentation entry for user-facing changes

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Regression jobs to run:

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[github-actions]

Workflow [PR], commit [502df28]

[alsugiliazova]

Audit Report: PR #1551 — Fix remote initiator host name

Confirmed defects

No confirmed defects in reviewed scope.

Not confirmed (low priority)

• unescapeForFileName vs Poco::URI::decode: Cluster::Address::fromString uses unescapeForFileName; this PR uses Poco::URI::decode. Functionally equivalent for valid escapeForFileName output. Consistency preference, not a defect.