fix: move vscode lazy imports to module level (#1183)

[microsasa]

Summary

Move get_vscode_summary and render_vscode_summary imports from inside the vscode() function body to the module-level import block in cli.py, consistent with every other subcommand (summary, cost, live, session).

Changes

• src/copilot_usage/cli.py — Moved two from copilot_usage.* imports from inside vscode() to the top-level import section. Removed the now-redundant in-function import lines.
• tests/copilot_usage/test_cli.py — Added test_vscode_imports_are_module_level() regression test that verifies both symbols are available as module-level attributes of copilot_usage.cli (i.e., no longer deferred).

Why

1. Import errors now surface at process start instead of only when the vscode command is invoked.
2. Aligns with the CODING_GUIDELINES.md import convention (standard → third-party → local at module level).
3. Makes the module dependency graph visible to static analysis and readers auditing imports.

Closes #1183

Warning

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Generated by Issue Implementer · ● 7.3M · ◷

[Copilot]

Pull request overview

Moves the VS Code subcommand dependencies in copilot_usage.cli from lazy in-function imports to module-level imports, aligning vscode with the import/command structure used by the other CLI subcommands and surfacing import errors earlier.

Changes:

• Promoted get_vscode_summary and render_vscode_summary to module-level imports in src/copilot_usage/cli.py and removed the deferred in-function imports.
• Added a regression test asserting both symbols are present as module attributes after importing copilot_usage.cli.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/copilot_usage/cli.py	Makes VS Code command dependencies import at module load time (consistent with other subcommands).
tests/copilot_usage/test_cli.py	Adds a regression test ensuring the VS Code symbols are available at module scope (no deferred import).