apollo_network: add BadPeerReport and PenaltyCard

[guy-starkware]

Note

Low Risk
Purely additive type definitions and an import; no changes to message handling, scoring, or peer management behavior.

Overview
Introduces a new BadPeerReport struct (peer id, reason, and severity) and a PenaltyCard enum (Red/Yellow) in network_manager/mod.rs, deriving Serialize/Deserialize for future reporting workflows.

Also adds the serde import needed for these derives; no runtime behavior or networking logic changes are included yet.

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[reviewable-StarkWare]

This change is 

[guy-starkware]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• apollo_network: pass the reBadPeerReport when reporting #12474
• apollo_network: struct that holds the reason the peer is considered bad #12470
• apollo_network: add BadPeerReport and PenaltyCard #12463 👈 (View in Graphite)
• apollo_consensus: check for duplicate votes before caching #12465
• apollo_consensus: add helper function to report peer #12464
• main-v0.14.1-committer

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