Refactored variable resolvers.

[lextatic]

Changed

• Merged VariableResolver and SharedVariableResolver with a scope parameter.
• Refactored and a added shared variables support for ArrayVariableResolver.

[Copilot]

Pull request overview

This PR consolidates graph-local and shared-variable resolution by introducing a VariableScope parameter to variable resolvers, removing the dedicated SharedVariableResolver, and updating array variable resolution to support shared scope as well.

Changes:

• Merged VariableResolver and SharedVariableResolver into a single VariableResolver(..., scope) API.
• Refactored ArrayVariableResolver to resolve array variables from graph or shared Variables via IArrayPropertyResolver.
• Updated tests and documentation to reflect the new scope-aware resolver approach and removed shared-resolver artifacts.

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Forge/Statescript/Properties/VariableResolver.cs	Adds VariableScope support to read from graph-local or shared variables.
Forge/Statescript/Properties/SharedVariableResolver.cs	Removes deprecated resolver in favor of scoped VariableResolver.
Forge/Statescript/Properties/ArrayVariableResolver.cs	Refactors to scope-aware array resolution via IArrayPropertyResolver.
Forge/Statescript/GraphProcessor.cs	Updates XML docs to reference scope-aware resolvers.
Forge.Tests/Statescript/Resolvers/VariableResolverTests.cs	Adds coverage for shared-scope reads and null shared variables.
Forge.Tests/Statescript/Resolvers/SharedVariableResolverTests.cs	Removes tests for the deleted resolver.
Forge.Tests/Statescript/Resolvers/ArrayResolverTests.cs	Updates tests for new array resolver behavior and shared-scope support.
docs/statescript/variables.md	Updates guidance/examples to use scope-aware resolvers for shared variables.
docs/statescript/resolvers/variable-resolver.md	Documents new scope parameter and shared-scope usage.
docs/statescript/resolvers/shared-variable-resolver.md	Removes docs for deleted resolver.
docs/statescript/resolvers/README.md	Updates resolver overview to remove SharedVariableResolver and clarify array resolver interfaces.
docs/statescript/resolvers/array-resolver.md	Updates ArrayVariableResolver docs to reflect variable-name + scope-based resolution.

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