Hide Password Generator from Create Seed menu flow

[3rdIteration]

Motivation

• The Password Generator option was visible when entering the "Create a seed" flow, but it should only be available from the Tools entry point.

Description

• Add an include_password_generator toggle to ToolsMenuView (default True) and only append the PASSWORD_GENERATOR button when the toggle is set.
• Preserve backward compatibility by using getattr(self, "include_password_generator", True) to handle older instantiations that don't pass the flag.
• Update create-seed entry points to open ToolsMenuView with view_args={"include_password_generator": False} from LoadSeedView and the Satochip import create flow so Password Generator is hidden in that context.
• Add tests (tests/test_create_seed_menu.py) validating the route/view_args and that the Password Generator button is omitted when disabled.

Testing

• Ran pytest -q tests/test_create_seed_menu.py tests/test_password_generator_views.py::test_tools_menu_back_returns_back_stack and all tests passed.
• Test run result: 3 passed.

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Codex Task

[Copilot]

Pull request overview

This PR addresses a UX issue where the Password Generator option was incorrectly appearing in the "Create a seed" menu flow, when it should only be accessible from the main Tools entry point.

Changes:

• Added an optional include_password_generator parameter to ToolsMenuView (defaults to True for backward compatibility)
• Updated two seed creation entry points (LoadSeedView and ToolsSatochipImportSeedView) to pass include_password_generator=False when navigating to ToolsMenuView
• Added comprehensive test coverage validating the new behavior

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/seedsigner/views/tools_views.py	Added include_password_generator parameter to ToolsMenuView.__init__() and conditional logic in run() method; updated ToolsSatochipImportSeedView to pass the parameter when creating seeds
src/seedsigner/views/seed_views.py	Updated LoadSeedView to pass include_password_generator=False when routing to ToolsMenuView for seed creation
tests/test_create_seed_menu.py	New test file with two tests: one verifying the routing with correct view_args, another verifying Password Generator is excluded from the button list when disabled