chore: move fuzz profile settings to workspace root

[xdustinface]

Fix the long existing cargo warning:

warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
 package:   /Users/kevin/GIT/rust-dashcore/fuzz/Cargo.toml
 workspace: /Users/kevin/GIT/rust-dashcore/Cargo.toml

Profile settings in non-root packages are ignored by Cargo. Move codegen-units to the workspace root's per-package profile override and remove the redundant [profile.release] section from fuzz/Cargo.toml. The lto and panic settings already match the workspace defaults.

Summary by CodeRabbit

• Chores
  • Optimized build configuration for release builds to improve compilation efficiency.
  • Updated fuzzing test configuration to use default build profile settings.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: be3a8bfe-18d8-486c-8ce9-d23ac4962169

📥 Commits

Reviewing files that changed from the base of the PR and between ebba180 and 3c5727c.

📒 Files selected for processing (2)

• Cargo.toml
• fuzz/Cargo.toml

💤 Files with no reviewable changes (1)

• fuzz/Cargo.toml

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📝 Walkthrough

Walkthrough

The pull request modifies the build configuration for the dash-fuzz package. The main Cargo.toml adds a codegen-units = 16 setting to the dash-fuzz release profile, while fuzz/Cargo.toml removes its custom release profile section entirely, reverting to default behavior.

Changes

Cohort / File(s)	Summary
Build Configuration Cargo.toml	Added codegen-units = 16 to [profile.release.package.dash-fuzz] section for parallelized code generation.
Fuzz Profile Cleanup fuzz/Cargo.toml	Removed entire [profile.release] section with custom LTO and codegen settings, reverting to default release profile behavior.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 Hopping through configs with careful precision,
Codegen units dance in parallel division,
One package optimized, one profile set free,
Build times get faster for you and for me! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'chore: move fuzz profile settings to workspace root' clearly and concisely describes the main change: relocating fuzz profile configuration to the workspace root Cargo.toml file.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 66.84%. Comparing base (ebba180) to head (3c5727c).

Additional details and impacted files

@@            Coverage Diff             @@
##           v0.42-dev     #501   +/-   ##
==========================================
  Coverage      66.83%   66.84%           
==========================================
  Files            313      313           
  Lines          64878    64878           
==========================================
+ Hits           43363    43366    +3     
+ Misses         21515    21512    -3     

Flag	Coverage Δ		*Carryforward flag
core	74.90% <ø> (ø)
dash-network	74.90% <ø> (ø)		Carriedforward from ebba180
dash-network-ffi	34.74% <ø> (ø)		Carriedforward from ebba180
dash-spv	68.18% <ø> (ø)		Carriedforward from ebba180
dash-spv-ffi	34.74% <ø> (ø)		Carriedforward from ebba180
dashcore	74.90% <ø> (ø)		Carriedforward from ebba180
dashcore-private	74.90% <ø> (ø)		Carriedforward from ebba180
dashcore-rpc	19.92% <ø> (ø)		Carriedforward from ebba180
dashcore-rpc-json	19.92% <ø> (ø)		Carriedforward from ebba180
dashcore_hashes	74.90% <ø> (ø)		Carriedforward from ebba180
ffi	37.43% <ø> (ø)
key-wallet	65.58% <ø> (ø)		Carriedforward from ebba180
key-wallet-ffi	34.74% <ø> (ø)		Carriedforward from ebba180
key-wallet-manager	65.58% <ø> (ø)		Carriedforward from ebba180
rpc	19.92% <ø> (ø)
spv	81.02% <ø> (+0.02%)	⬆️
wallet	65.58% <ø> (ø)

*This pull request uses carry forward flags. Click here to find out more.
see 1 file with indirect coverage changes

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