Fix static analyzer diagnostics and tests

[usefuulness]

Summary

• import the analyzer Range type in the VS Code extension and simplify teardown
• clear the static analyzer error reporter, pass template-root context, and expose a setTemplateRoots helper
• harden the semantic analyzer by tracking macro contexts, handling unresolved macro calls, and enriching include/import macro scopes
• convert the integration tests to await analyzer results to match the async API

Testing

• npm test

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https://chatgpt.com/codex/tasks/task_e_68c8719d4ba48328bafc6e753f655f1a