feat: support multiple connected proxies

[TestingPlant]

Implements #916

[github-actions]

Benchmark Results for general

ray_intersection/aabb_size_0.1                     [  19.2 ns ...  19.2 ns ]      +0.17%
ray_intersection/aabb_size_1                       [  19.2 ns ...  19.2 ns ]      -0.02%
ray_intersection/aabb_size_10                      [  19.2 ns ...  19.2 ns ]      -0.01%
ray_intersection/ray_distance_1                    [   3.8 ns ...   3.8 ns ]      -0.14%
ray_intersection/ray_distance_5                    [   3.9 ns ...   3.9 ns ]      +0.03%
ray_intersection/ray_distance_20                   [   3.8 ns ...   3.8 ns ]      +0.08%
overlap/no_overlap                                 [  28.8 ns ...  28.6 ns ]      -0.84%
overlap/partial_overlap                            [  28.8 ns ...  28.8 ns ]      -0.00%
overlap/full_containment                           [  21.6 ns ...  21.6 ns ]      -0.11%
point_containment/inside                           [   4.9 ns ...   4.9 ns ]      +0.10%
point_containment/outside                          [   4.4 ns ...   4.4 ns ]      +0.30%
point_containment/boundary                         [   5.0 ns ...   4.9 ns ]      -0.21%

Comparing to c691c9e

[codecov]

Codecov Report

❌ Patch coverage is 10.52632% with 255 lines in your changes missing coverage. Please review.
✅ Project coverage is 23.22%. Comparing base (c691c9e) to head (3248d99).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/hyperion/src/net/proxy.rs	0.00%	96 Missing ⚠️
crates/hyperion/src/net/intermediate.rs	14.58%	82 Missing ⚠️
crates/hyperion/src/net/mod.rs	12.04%	71 Missing and 2 partials ⚠️
crates/hyperion/src/egress/mod.rs	0.00%	3 Missing ⚠️
crates/hyperion/src/lib.rs	83.33%	1 Missing ⚠️

@@            Coverage Diff             @@
##             main     #940      +/-   ##
==========================================
- Coverage   23.37%   23.22%   -0.15%     
==========================================
  Files         156      157       +1     
  Lines       15305    15494     +189     
  Branches      481      486       +5     
==========================================
+ Hits         3577     3599      +22     
- Misses      11629    11794     +165     
- Partials       99      101       +2     

Files with missing lines	Coverage Δ
crates/hyperion/src/egress/channel.rs	33.58% <100.00%> (ø)
crates/hyperion/src/simulation/mod.rs	21.86% <ø> (ø)
crates/hyperion/src/lib.rs	57.03% <83.33%> (+1.56%)	⬆️
crates/hyperion/src/egress/mod.rs	18.51% <0.00%> (ø)
crates/hyperion/src/net/mod.rs	8.75% <12.04%> (+0.86%)	⬆️
crates/hyperion/src/net/intermediate.rs	14.58% <14.58%> (ø)
crates/hyperion/src/net/proxy.rs	0.00% <0.00%> (ø)

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