fix: resolve deserialization error in PromptorPlugin test runner

[valorisa]

Summary

• Fix deserialization error in Node.js test runner for \PromptorPlugin.test.ts\
• Replace \�s any\ casts with explicit \Record<string, unknown>> typing and type checks
• Add explicit return type to \�xecute()> method in \PromptorPlugin.ts\ to ensure serializable output

Root Cause

The test runner's IPC channel failed to serialize test results when using \�s any> type assertions on complex objects returned by \plugin.execute(). This caused \Error: Unable to deserialize cloned data due to invalid or unsupported version\ in CI.

Changes

• \PromptorPlugin.test.ts: explicit type-safe assertions
• \PromptorPlugin.ts>: typed return type + \String()> wrapper for matrix property

[gemini-code-assist]

Important

Installation incomplete: to start using Gemini Code Assist, please ask the organization owner(s) to visit the Gemini Code Assist Admin Console and sign the Terms of Services.