wallet_getContext method implementation

[bobo-k2]

Summary

Mini apps hosted in Startale app have access to the app context, while dApps using our SDK don't. This PR adds wallet_getContext method

How did you test your changes?

[Copilot]

Pull request overview

Adds support for Startale app context access through the SDK via a new wallet_getContext RPC method.

Changes:

• Adds context state storage and persistence in the SDK store.
• Stores context from wallet_connect responses and exposes it through wallet_getContext.
• Updates test fixtures, example RPC methods, response typing, and package versions.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
packages/app-sdk/src/store/store.ts	Adds context slice, persistence, and store accessors.
packages/app-sdk/src/sign/app-sdk/Signer.ts	Handles wallet_getContext and stores context from wallet_connect.
packages/app-sdk/src/core/rpc/wallet_connect.ts	Extends WalletConnectResponse with optional context.
packages/app-sdk/src/sign/app-sdk/Signer.test.ts	Updates mocked store states with context.
packages/app-sdk/src/sign/app-sdk/utils.test.ts	Updates mocked store state with context.
examples/testapp/src/components/RpcMethods/method/walletTxMethods.ts	Adds wallet_getContext to the test app RPC method list.
packages/app-sdk/package.json	Bumps package version.
package.json	Bumps workspace version.

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