[gacevicljubisa]

Checklist

• I have read the coding guide.
• My change requires a documentation update, and I have done it.
• I have added tests to cover my changes.
• I have added or updated fuzz targets for any code handling untrusted input.
• I have filled out the description and linked the related issues.

Description

The autonat dialer and ping dialer hosts were created without a resource manager, so go-libp2p gave each one its default resource manager with metrics enabled. The go-libp2p stats reporter writes to package-level Prometheus collectors, so these two hosts overwrote the main host's libp2p_rcmgr_* gauges: connections, fds and streams flapped between the real value and 0 on every scrape, and libp2p_rcmgr_limit showed go-libp2p's autoscaled defaults instead of Bee's stream limits.

The dialer hosts now get a resource manager with the same default limits but metrics disabled. The main host is unchanged. The new test asserts the libp2p_rcmgr_limit system gauges carry the main host's limits.

Open API Spec Version Changes (if applicable)

Motivation and Context (Optional)

Related Issue (Optional)

Screenshots (if appropriate):

AI Disclosure

• This PR contains code that has been generated by an LLM.
• I have reviewed the AI generated code thoroughly.
• I possess the technical expertise to responsibly review the code generated in this PR.