Add cross-block model member validation

[ViTeXFTW]

What changed

• add schema-driven model sources for cross-block bone and subobject validation
• resolve ObjectCreationList transport objects through their models and W3D members
• index Object model bindings and inheritance for diagnostics and completion
• add off, compatible, and strict model-member analysis modes
• expose the setting through LSP initialization and VS Code configuration

Why

OCL fields such as VisibleDropBoneBaseName belong to the model used by their referenced transport Object, not to a model declared inside the OCL itself. Same-scope model lookup therefore could not validate these references.

Validation

• cargo test --workspace
• schema round-trip and spec tests
• JSON configuration parse
• git diff --check

The optional real-game corpus was not present locally, so the ignored corpus gate was not run.

[greptile-apps]

Greptile Summary

This PR adds cross-block model member validation for W3D bones and subobjects. The main changes are:

• Schema-driven model sources for model-member fields.
• Object model and inheritance indexing for diagnostics and completions.
• OCL transport-object resolution for bone and subobject validation.
• Configurable off, compatible, and strict analysis modes exposed through LSP and VS Code settings.

Confidence Score: 4/5

Safe to merge after the documentation default is corrected.

The code changes are focused and covered by targeted tests. The only accepted issue is a non-blocking documentation mismatch.

docs/language-server.md

T-Rex Logs

What T-Rex did

• The workspace cargo tests completed successfully with cargo test --workspace --locked, and they reported ignored corpus tests.
• The git diff --check step completed successfully with EXIT_CODE: 0.
• Targeted proof logs for schema/spec, schema crate, server crate, and VS Code compile all exited cleanly with EXIT_CODE: 0.
• The artifact corpus gate proof was captured, showing a message that corpus is ignored and instructing to fetch the corpus with scripts.

_{Ran code and verified through T-Rex}

Important Files Changed

Filename	Overview
crates/analysis/src/diagnostics.rs	Adds configurable model-member diagnostics and validates OCL members against referenced transport models.
crates/analysis/src/index.rs	Indexes object-to-model bindings, object inheritance, and model-member strictness state.
crates/analysis/src/model.rs	Adds schema-directed model source resolution for enclosing objects and object-reference fields.
crates/server/src/backend.rs	Populates object model and parent indexes during scans and applies strictness from initialization options.
docs/language-server.md	Documents the new LSP option, but states the wrong default value.

_{Reviews (1): Last reviewed commit: "Add cross-block model member validation" | Re-trigger Greptile}

[greptile-apps]

Correct default value
This bullet describes analysis.modelMemberStrictness but says it defaults to false; the server and VS Code configuration default it to compatible, so the published setup docs give users the wrong value.