feat: configure composeGraphsPool to use child_process runtime

[StarpTech]

Summary by CodeRabbit

• Chores
  • Updated worker pool configuration to enhance task execution and serialization efficiency.

Checklist

• I have discussed my proposed changes in an issue and have received approval to proceed.
• I have followed the coding standards of the project.
• Tests or benchmarks have been added or updated.
• Documentation has been updated on https://github.com/wundergraph/docs-website.
• I have read the Contributors Guide.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: b5fb90f9-fb06-468a-affc-a7dca97c82b4

📥 Commits

Reviewing files that changed from the base of the PR and between 66e7bf2 and 3f58ce8.

📒 Files selected for processing (1)

• controlplane/src/core/composition/composeGraphs.pool.ts

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Walkthrough

Adds worker pool configuration properties to the compose graphs pool initialization, specifying child_process runtime and advanced serialization for task handling between threads.

Changes

Cohort / File(s)	Summary
Worker Pool Configuration controlplane/src/core/composition/composeGraphs.pool.ts	Added runtime: 'child_process' and serialization: 'advanced' properties to pool initialization, modifying worker execution and task serialization behavior.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Possibly related PRs

• feat: implement worker-based graph composition with Tinypool #2637 — Implements the Tinypool-based worker pool initialization that this PR extends with additional configuration properties for runtime and serialization.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: configuring the composeGraphsPool to use child_process runtime, which directly corresponds to the actual changes made in the pull request.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.21%. Comparing base (66e7bf2) to head (3f58ce8).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2657       +/-   ##
===========================================
+ Coverage   46.42%   64.21%   +17.79%     
===========================================
  Files        1046      304      -742     
  Lines      141496    43042    -98454     
  Branches     9683     4604     -5079     
===========================================
- Hits        65690    27640    -38050     
+ Misses      74094    15380    -58714     
+ Partials     1712       22     -1690     

Files with missing lines	Coverage Δ
...olplane/src/core/composition/composeGraphs.pool.ts	81.81% <100.00%> (+0.42%)	⬆️

... and 742 files with indirect coverage changes

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