fix(agent): show all IP:port mappings for containers bound to multiple IPs

[svenvg93]

📃 Description

Fix incorrect port display for Docker containers bound to multiple IP addresses. The agent was deduplicating ports by port number alone, so only the first IP:port binding was shown when the same port was exposed on more than one IP.

Fixes #1991

🪵 Changelog

✏️ Changed

• convertContainerPortsToString now deduplicates by IP:port pair instead of port number alone
• Port sorting uses a secondary sort by IP for stable output when multiple IPs share the same port

🔧 Fixed

• Container ports bound to multiple IPs (e.g. 172.16.151.72:65533->80/tcp, 172.16.156.25:65533->80/tcp) now show all IP:port mappings instead of only the first one
• Mixed IPv4/IPv6 bindings on the same port are now displayed correctly