feat(grpc-dp): enforce direct-path connectivity or fallback to json

[raj-prince]

Description

Link to the issue in case of a bug fix.

Testing details

1. Manual - NA
2. Unit tests - NA
3. Integration tests - NA

Any backward incompatible change? If so, please explain.

[codecov]

Codecov Report

❌ Patch coverage is 42.59259% with 62 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.45%. Comparing base (d3970fa) to head (bf7ab0e).
⚠️ Report is 17 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/storage/storage_handle.go	6.06%	61 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #4367       +/-   ##
===========================================
+ Coverage        0   83.45%   +83.45%     
===========================================
  Files           0      161      +161     
  Lines           0    19520    +19520     
===========================================
+ Hits            0    16291    +16291     
- Misses          0     2629     +2629     
- Partials        0      600      +600     

Flag	Coverage Δ
unittests	83.45% <42.59%> (?)

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