feat(sdk-coin-tao): add moveStakeBuilder

[raksha-r7]

Ticket: SC-3017

[Doddanna17]

Please check the comments

[Copilot]

Pull Request Overview

This PR adds support for moving stake between hotkeys in the TAO network by implementing a new moveStakeBuilder transaction builder.

• Adds MoveStakeBuilder and MoveStakeTransaction classes to handle move stake operations
• Extends transaction factory to support move stake transaction type
• Adds comprehensive test coverage for the move stake functionality

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
modules/sdk-coin-tao/test/unit/transactionBuilder/moveStakeBuilder.ts	Comprehensive test suite for MoveStakeBuilder functionality
modules/sdk-coin-tao/src/lib/transactionBuilderFactory.ts	Adds getMoveStakeBuilder method and factory routing
modules/sdk-coin-tao/src/lib/moveStakeTransaction.ts	Transaction class for move stake operations
modules/sdk-coin-tao/src/lib/moveStakeBuilder.ts	Builder class for constructing move stake transactions
modules/sdk-coin-tao/src/lib/index.ts	Exports new move stake classes
modules/sdk-coin-tao/src/lib/iface.ts	Adds MoveStakeTxData interface
modules/sdk-coin-tao/src/lib/constants.ts	Defines TAO network constants
modules/abstract-substrate/src/lib/utils.ts	Adds isMoveStake utility method
modules/abstract-substrate/src/lib/txnSchema.ts	Adds validation schema for move stake transactions
modules/abstract-substrate/src/lib/iface.ts	Adds move stake interfaces and method names

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}