chore(deps): pin 12 dependency versions

[cw-ananke]

Supply Chain Fix

This PR was automatically generated by ananke to pin 12 unpinned dependencies to their latest stable versions.

Changes

File	Dependency	Before	After	Source
Cargo.toml	http	1.0.0	1.5.0	registry
Cargo.toml	http-body	0.4	0.4.6	registry
Cargo.toml	bytes	1.4.0	1.12.1	registry
Cargo.toml	tower-service	0.3	0.3.3	registry
Cargo.toml	serde	1.0	1.0.229	registry
Cargo.toml	tokio	1	1.53.1	registry
Cargo.toml	hyper	1	1.11.0	registry
Cargo.toml	serde	1	1.0.229	registry
Cargo.toml	tokio	1	1.53.1	registry
Cargo.toml	serde_json	1.0	1.0.151	registry
examples/hello-world/Cargo.toml	axum-test-helper	0.*	0.4.0	registry
examples/hello-world/Cargo.toml	tokio	1.0	1.53.1	registry

Skipped

4 dependencies were skipped and require manual attention:

File	Dependency	Reason
Cargo.toml	axum	Registry lookup failed
Cargo.toml	reqwest	Registry lookup failed
Cargo.toml	tower	Registry lookup failed
examples/hello-world/Cargo.toml	axum	Registry lookup failed

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Generated by ananke — automated supply chain security

[cloudwalk-review-agent]

Summary

Looks good overall. This PR only tightens Rust dependency constraints to exact versions in Cargo.toml files and does not change runtime code paths, API behavior, auth, or money/data handling logic.

I did not find concrete correctness or security regressions in the diff itself. Exact pinning here is consistent with supply-chain hardening and should improve reproducibility.