test: cover watch rebuild with watched dependency

[maxpetrusenkoagent]

Summary

• Extend the watch rebuild dependency regression test to cover a depends_on service that also has its own develop.watch rule
• Assert the dependency container keeps the same ID and remains running after the frontend rebuild

Test Plan

• go test -tags e2e ./pkg/e2e/ -run '^$'
• go test -tags e2e ./pkg/e2e/ -run '^TestWatchRebuildIgnoresDependencies$' -count=1 (blocked locally: Docker daemon unavailable at /var/run/docker.sock)
• golangci-lint run --build-tags "e2e" ./pkg/e2e/... (blocked locally: golangci-lint not installed)

Closes #13717

Created with: Hermes Agent

[glours]

Closing this. This is low-quality, agent-generated AI slop that adds no value, issue is already tracked, and the changes are unverified and in several cases plain wrong. Not reviewing PRs like these.