chore(router, controlplane): add engine config hash mapping to node proto v1

[dkorittki]

Adds the message type ActiveGraphs to the node proto v1. It can be used to serialize / deserialize the upcoming mapper.json CDN files, so the router knows what to pull when using the new split config design.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 40.89%. Comparing base (9780ce7) to head (5d6f8de).
⚠️ Report is 2 commits behind head on feat/split-configs.

Additional details and impacted files

@@                   Coverage Diff                   @@
##           feat/split-configs    #2816       +/-   ##
=======================================================
- Coverage               64.32%   40.89%   -23.43%     
=======================================================
  Files                     311      990      +679     
  Lines                   44308   124191    +79883     
  Branches                 4767     5666      +899     
=======================================================
+ Hits                    28502    50793    +22291     
- Misses                  15783    71700    +55917     
- Partials                   23     1698     +1675     

Files with missing lines	Coverage Δ
router/gen/proto/wg/cosmo/node/v1/node.pb.go	29.36% <ø> (ø)

... and 681 files with indirect coverage changes

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[github-actions]

Router-nonroot image scan passed

✅ No security vulnerabilities found in image:

ghcr.io/wundergraph/cosmo/router:sha-e350b20a8c2689a3abbb6bac08a16fd1092efca4-nonroot