feat: add val address encoder

[matthiasmatt]

This pull request introduces a new ValueEncoder implementation for sdk.ValAddress in the value_encoder.go file, along with corresponding unit tests in value_encoder_test.go. The changes enhance the encoding and decoding capabilities for validator addresses (sdk.ValAddress) in the codebase.

Addition of sdk.ValAddress ValueEncoder:

• value_encoder.go: Added ValAddressValueEncoder to the list of ValueEncoder implementations, including methods for encoding, decoding, stringifying, and providing the name of the encoder. [1] [2]

Unit tests for ValAddressValueEncoder:

• value_encoder_test.go: Added a new test method TestValAddressValueEncoder to validate the bijectivity (correctness of encoding and decoding) of the ValAddressValueEncoder implementation.

[coderabbitai]

📝 Walkthrough

Walkthrough

A new value encoder for the sdk.ValAddress type was implemented, providing encode, decode, stringify, and name methods. A corresponding global encoder variable was introduced. Additionally, a unit test was added to verify the bijectivity of the new encoder using randomly generated validator addresses.

Changes

File(s)	Change Summary
value_encoder.go	Added valAddressValueEncoder struct implementing ValueEncoder[sdk.ValAddress] with required methods; introduced ValAddressValueEncoder global variable.
value_encoder_test.go	Added TestValAddressValueEncoder to test bijectivity of the new encoder with random values.

Poem

In bytes and strings, addresses dance,
Encoders now give them a chance.
With tests to prove they’re bijective,
Each validator’s path is now effective.
The code hops forward, neat and spry—
Another win for this codebase, oh my!
🐇✨

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
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📥 Commits

Reviewing files that changed from the base of the PR and between 7689949 and 6c78a44.

📒 Files selected for processing (2)

• value_encoder.go (2 hunks)
• value_encoder_test.go (1 hunks)

🔇 Additional comments (3)

value_encoder.go (2)

16-16: LGTM! Global variable declaration follows the established pattern.

The global variable declaration is consistent with other encoders in the file and correctly initializes the ValAddressValueEncoder.

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88-94: LGTM! Implementation is correct and consistent.

The valAddressValueEncoder implementation correctly follows the same pattern as accAddressValueEncoder. Since both sdk.AccAddress and sdk.ValAddress are type aliases for []byte, the direct casting approach in Encode and Decode methods is appropriate and efficient.

value_encoder_test.go (1)

49-53: LGTM! Test implementation provides proper coverage.

The test correctly follows the established pattern and adequately validates the bijectivity of the ValAddressValueEncoder. Using a randomly generated validator address from a secp256k1 key ensures realistic test data.

✨ Finishing Touches

• 📝 Generate Docstrings

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