This PR improves the pipe installation flow by replacing the confusing disabled install button with a unified safety warning dialog for high-risk pipes.

Before

• Unverified pipes with full access had an active GET button in the grid view but a disabled GET button in the detail view.
• To enable it, users had to find and check an "I have reviewed the source code" checkbox inside the detail page.
• This created a broken-looking UX and forced unnecessary friction on users who just wanted to install a pipe.

After

• The GET button is always active and clickable from both the grid and detail views.
• Clicking GET on any risky pipe (unverified or requesting full access) now opens a clear, helpful confirmation dialog.
• For high-risk pipes (unverified + full access), users must explicitly check "I understand this pipe can access all my data" before installing.
• E2E tests and deep-link install dialogs are updated to handle the new confirmation flow seamlessly.