Merge remote-tracking branch 'origin/main' into claude/port-printivity-patch-DrhDk-v1

* origin/main: (26 commits)
  docs: consolidate node renderer probe settings (#3257) (#3348)
  chore(ci): remove obsolete setup-node-with-retry action (#3352)
  chore: remove completed planning/analysis docs (#3361)
  test: stub stable VERSION in --pro install spec to unblock CI (#3363)
  docs(specs): add RC testing plan design spec (#3350)
  docs: point users at bin/shakapacker-config --doctor for bundler-config debugging (#3359)
  docs: polish RSC node renderer test recipe (#3273) (#3339)
  test: replace call_count stub pattern with and_return sequence (#2157) (#3353)
  docs: call out Inertia's incompatibility with client-side routers (#3356)
  docs: replace personal email with contact URL in Pro README (#3347)
  docs: plan performance test expansion (#3238)
  docs: explain responseEnd/action_total range overlap for Gumroad RSC benchmark (#3340)
  chore(ci): upgrade k6 benchmarks to v2.0.0 (#3319) (#3338)
  docs: add resolve.alias alternative for legacy Webpacker shim (#3252) (#3330)
  fix: scan .mts and .cts in Pro migration base-package check (#3250) (#3334)
  Bump version to 16.7.0.rc.0
  Update CHANGELOG.md for 16.7.0.rc.0 (#3336)
  feat: rolling_deploy_adapter for seeding previous bundle hashes (#3173)
  docs: capture Gumroad benchmark JS transfer-size artifacts (#3259) (#3333)
  [codex] Document node renderer health probes (#3241)
  ...

# Conflicts:
#	PROJECTS.md

Author: justin808