chore: move configs away from root directory

[seqre]

Follow-up to #506

[github-actions]

Bencher Report

Branch	config-reorganization
Testbed	github-ubuntu-latest

Click to view all benchmark results

Benchmark	Latency	Benchmark Result milliseconds (ms) (Result Δ%)	Upper Boundary milliseconds (ms) (Limit %)
empty_router/empty_router	📈 view plot 🚷 view threshold	6.61 ms (+11.45%) Baseline: 5.93 ms	7.04 ms (93.90%)
json_api/json_api	📈 view plot 🚷 view threshold	1.09 ms (+5.94%) Baseline: 1.03 ms	1.18 ms (92.43%)
nested_routers/nested_routers	📈 view plot 🚷 view threshold	1.01 ms (+7.06%) Baseline: 0.95 ms	1.08 ms (94.00%)
single_root_route/single_root_route	📈 view plot 🚷 view threshold	1.00 ms (+10.20%) Baseline: 0.91 ms	1.04 ms (96.53%)
single_root_route_burst/single_root_route_burst	📈 view plot 🚷 view threshold	17.32 ms (-1.39%) Baseline: 17.56 ms	20.69 ms (83.68%)

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[Copilot]

Pull request overview

Moves assorted tool and automation configuration files out of the repository root into dedicated subdirectories (primarily .config/ and .cargo/), updating CI and developer tooling to reference the new locations. This follows PR #506’s goal of reducing root-directory clutter.

Changes:

• Update pre-commit hooks to use configs from .config/ (yamlfmt, djLint).
• Update GitHub Actions workflows to reference relocated configs (cargo-deny, release-plz).
• Add new config files under .config/ and .cargo/.

Reviewed changes

Copilot reviewed 3 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
.pre-commit-config.yaml	Points yamlfmt and djLint hooks at config files under .config/.
.github/workflows/rust.yml	Updates cargo-deny invocation to use a config path (currently mismatched).
.github/workflows/release-plz.yml	Configures release-plz action to load .cargo/release-plz.toml.
.config/yamlfmt.yml	Adds yamlfmt configuration file under .config/.
.config/insta.yaml	Adds insta/cargo-insta configuration under .config/.
.config/djlint.toml	Adds djLint configuration file under .config/.
.cargo/release-plz.toml	Adds release-plz configuration under .cargo/.
.cargo/deny.toml	Adds cargo-deny configuration under .cargo/.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
rust	90.00% <ø> (-0.01%)	⬇️

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see 1 file with indirect coverage changes

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[m4tx]

Why is insta.yaml being moved to .config, but release-plz.toml and deny.toml are moved to .cargo? Feels like all of these should be in one directory for consistency. Otherwise, LGTM.