The selected project badge in the New thread header clips both the start and end of the project name. The same name renders correctly in the left sidebar.

Steps to reproduce:

1. Open T3 Code (Alpha) 0.0.4 (0763a35) on macOS
2. Select a project
3. Start a new thread
4. Compare the selected project name in the top header with the sidebar

Actual behavior:

• the top header badge clips the project name on the left and right
• the same project name is not clipped in the sidebar

Expected behavior:

• the top header badge should render like the sidebar, or truncate cleanly instead of clipping

Notes:

• the repro project name is only 18 characters
• this issue was drafted with AI assistance at the instruction of a human who reviewed the text and personally reproduced the bug before filing (👋 hello with my real meat fingers)