[eventhorizon-cli]

Request-only delegate handlers without injected services currently add an async wrapper even though they have no response validation or scope disposal to perform. Return the invoker's original ValueTask directly on that path; the consumer still awaits actual completion before completing requests and releasing the execution slot.

Keep response validation, service scope disposal, and initial expression compilation intact. Add completion and concurrency regression tests, mixed-submission stress coverage, reusable benchmarks, and the measured before/after results.

Emphasize in the English, Chinese, and NuGet READMEs that every response entry must be assigned exactly once. Missing assignments fail the whole Handler batch; an explicitly assigned null is a valid nullable response.

Validation:

• Solution build and formatting verification passed.
• All 483 unit tests passed on each of .NET 8 and .NET 10, including 24,576 request-only stress requests per framework.
• All ten benchmark cases validated every operation/wave on both revisions.
• Isolated delegate forwarding allocation fell from 455 B to 319 B. With 20 ms work, explicit 256-request waves fell from 44.04 KB to 42.98 KB; elapsed time remained about 21 ms. These measurements support allocation savings, not a material latency claim.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.88%. Comparing base (53a864d) to head (fd9e087).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #70   +/-   ##
=======================================
  Coverage   96.88%   96.88%           
=======================================
  Files          38       38           
  Lines        1571     1573    +2     
  Branches      286      287    +1     
=======================================
+ Hits         1522     1524    +2     
+ Misses         20       19    -1     
- Partials       29       30    +1     

Flag	Coverage Δ
integration	?
unit	96.88% <100.00%> (+<0.01%)	⬆️

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