Feat/account factory invoke example script

[marshalfleet]

Pull Request Description
Summary

Added an example invoke script for the account factory to demonstrate how to interact with the contract and simplify local development, testing, and integration workflows.

Changes Made
Added an example invoke script for account factory operations
Included usage examples for invoking supported contract methods
Followed existing repository scripting patterns and conventions
Added input validation and safe handling for missing or invalid parameters
Ensured script handles stale, disconnected, or failed invocation states gracefully
Added documentation explaining script usage and expected inputs
Kept implementation aligned with existing linting, module, and security practices
Testing
Verified the invoke script executes correctly in supported environments
Tested valid contract invocation flows
Tested invalid input handling
Confirmed script behavior matches existing account factory APIs
Verified existing contract flows remain unaffected
Confirmed CI checks pass successfully
Acceptance Criteria Covered
Example invoke script implemented
Relevant contract interaction paths covered
Runtime behavior verified where applicable
Tests/documentation added
Invalid states handled gracefully
Existing account factory flows remain unchanged

Closes #225

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