fix: dedupe dedupe settings

[bnchi]

Summary:

• Removes batch_execution field from Server config, dedupe_in_flight and dedupe fields from Upstream.
• Adds dedupe to Server config
• Refactor request_handler.rs and io.rs to use the new dedupe defined in Server config

Issue Reference(s):
Fixes #2182

Build & Testing:

• I ran cargo test successfully.
• I have run ./lint.sh --mode=fix to fix all linting issues raised by ./lint.sh --mode=check.

Checklist:

• I have added relevant unit & integration tests.
• I have updated the documentation accordingly.
• I have performed a self-review of my code.
• PR follows the naming convention of <type>(<optional scope>): <title>

[codecov]

Codecov Report

Attention: Patch coverage is 86.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 84.12%. Comparing base (dd098ca) to head (0740a43).

Files	Patch %	Lines
src/core/ir/io.rs	83.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2183      +/-   ##
==========================================
- Coverage   84.12%   84.12%   -0.01%     
==========================================
  Files         212      212              
  Lines       20054    20032      -22     
==========================================
- Hits        16870    16851      -19     
+ Misses       3184     3181       -3     

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[bnchi]

Thanks for fixing the lint issues, I didn't expect the warning will cause the lint to fail in CI.

One more thing I wanted to quickly get your opinion on this line

tailcall/src/core/ir/io.rs

Line 74 in 4890980

if ctx.request_ctx.server.dedupe {

The above if - else block is probably not needed because this block will get executed only if this check here didn't pass

tailcall/src/core/ir/io.rs

Line 69 in 4890980

if !ctx.request_ctx.server.dedupe || !ctx.is_query() {

so I guess we can get rid of the if at line 74 completely right ?

The tests are still working on my machine if I removed that check.

@tusharmath

[tusharmath]

That would be right.

[bnchi]

I made a commit that removes the unnecessary check thanks.

[tusharmath]

@bnchi Can you please update the documentation for these changes here - https://github.com/tailcallhq/tailcallhq.github.io