refactor: move strix/viewer under strix/interface

[devin-ai-integration]

Summary

The local run viewer is part of the user interface, so it now lives with the rest of it: strix/viewer/ → strix/interface/viewer/ (pure git mv, no behavior change).

• All strix.viewer.* imports become strix.interface.viewer.* (main.py strix view dispatch, TUI viewer launch, tests).
• Path references updated: pyproject.toml (wheel exclude for the Vite source, ruff per-file-ignores), Makefile viewer target, .gitignore, strix.spec (bundled static/ path), CONTRIBUTING.md.
• The frontend source and committed static/ bundle move as-is; bundle_dir() is __file__-relative so serving is unchanged.
• Added # nosec markers on pre-existing bandit findings in the moved/renamed files (the pre-commit bandit hook now rescans them), matching the existing # noqa: S310 # nosec B310 convention.

uv run pytest (417 passed) and pre-commit hooks pass.

Link to Devin session: https://app.devin.ai/sessions/4c3eaf22bc9a4bcc804bd2e434351f84
Requested by: @0xallam

[devin-ai-integration]

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[greptile-apps]

Greptile Summary

The PR relocates the local viewer package under strix/interface and updates its imports, build paths, packaging configuration, documentation, and tests.

• Moves the Python viewer package, frontend source, and static bundle without behavioral changes.
• Updates CLI, TUI, PyInstaller, Hatch, Ruff, Makefile, and test references to the new location.
• Corrects the auth-cache documentation to match the unchanged runtime path.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains; the previously reported auth-cache documentation mismatch is corrected at the current head.

Important Files Changed

Filename	Overview
strix/interface/viewer/auth.py	The prior documentation mismatch is fixed; both the module documentation and AUTH_PATH identify ~/.strix/viewer-auth.json.
strix/interface/viewer/server.py	Viewer imports were consistently updated to the relocated package without changing server behavior.
strix/interface/viewer/cli.py	Internal imports and the frontend build instruction now reference the relocated viewer.
strix/interface/main.py	The strix view dispatch imports the CLI from its new package location.
pyproject.toml	Wheel exclusions and Ruff overrides were updated to follow the relocated frontend and Python modules.
strix.spec	Bundled static assets and hidden imports now reference the relocated viewer package.

_{Reviews (2): Last reviewed commit: "fix: restore viewer-auth.json path in au..." | Re-trigger Greptile}

[0xallam]

@greptile