Add protocol-aware service bindings to server logs

[josecelano]

Summary

Add protocol-aware service_binding fields to server operational logs while retaining the existing server_socket_addr field for compatibility.

• HTTP tracker and REST API request/response logs now include the post-bind ServiceBinding.
• UDP error logs now include the post-bind ServiceBinding.
• The REST API router now receives ServiceBinding and derives the compatible socket-address field from it.
• Record manual runtime evidence and clarify that both fields describe the same actual bound address, including an OS-assigned port.

Verification

• cargo fmt --check
• linter all
• cargo test -p torrust-tracker-axum-http-server -p torrust-tracker-axum-rest-api-server -p torrust-tracker-udp-server
• cargo test --workspace
• TORRUST_GIT_HOOKS_LOG_DIR=.tmp ./contrib/dev-tools/git/hooks/pre-commit.sh

Closes #1415

[Copilot]

Pull request overview

This PR implements issue #1415 by making operational server logs protocol-aware via ServiceBinding, while preserving the existing server_socket_addr field for compatibility. This aligns runtime logging with the already protocol-aware service identity used elsewhere (e.g., health check details and metric labels).

Changes:

• Add service_binding (post-bind ServiceBinding) to HTTP tracker + REST API request/response tracing logs, retaining server_socket_addr.
• Add service_binding to UDP error logs, retaining server_socket_addr.
• Update REST API router wiring to accept &ServiceBinding and derive server_socket_addr from it; add manual verification evidence to the issue spec.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/udp-server/src/handlers/error.rs	Include service_binding in UDP error logs while keeping server_socket_addr.
packages/axum-rest-api-server/src/server.rs	Build ServiceBinding post-bind and pass it into the router.
packages/axum-rest-api-server/src/routes.rs	Add service_binding + derived server_socket_addr to request/response/failure logs.
packages/axum-http-server/src/v1/routes.rs	Add service_binding + derived server_socket_addr to request/response/failure logs (refactored via helper).
docs/issues/open/2023-1978-expose-configured-public-urls-in-runtime-observability.md	New follow-up issue spec clarifying separation of bind address vs service binding vs public URL.
docs/issues/open/1978-configuration-overhaul-epic.md	Update EPIC tracking to reflect #1415 completion and add #2023 follow-up.
docs/issues/open/1415-1978-use-service-binding-instead-of-socket-addr/manual-verification.md	Add recorded manual verification evidence for the new log fields and unchanged health/metrics behavior.
docs/issues/open/1415-1978-use-service-binding-instead-of-socket-addr/ISSUE.md	Add finalized issue spec (folder form) documenting goals, constraints, and verification.
docs/issues/open/1415-1978-use-service-binding-instead-of-socket-addr.md	Remove the old single-file spec in favor of the folder-based spec + evidence files.

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated no new comments.

[josecelano]

ACK 58504af