# Story: UI Polish - Sticky Header & Compact Layout

## User Story
**As a** User
**I want** key controls (Model Selection, Tool Toggle, Project Path) to be visible at all times
**So that** I don't have to scroll up to check my configuration or change settings.

## Acceptance Criteria
*   [ ] Frontend: Create a fixed `<Header />` component at the top of the viewport.
*   [ ] Frontend: Move "Active Project" display into this header (make it compact/truncated if long).
*   [ ] Frontend: Move "Ollama Model" and "Enable Tools" controls into this header.
*   [ ] Frontend: Ensure the Chat message list scrolls *under* the header (taking up remaining height).
*   [ ] Frontend: Remove the redundant "Active Project" bar from the main workspace area.

## Out of Scope
*   Full visual redesign (just layout fixing).
*   Settings modal (keep controls inline for now).