Move profile display from footer to Context section in side panel

[mstfash]

Move profile display from footer to Context section in side panel

Problem

The profile name was displayed in the side panel footer alongside the version, crammed into a single line with left/right alignment. This made it easy to miss and inconsistent with other contextual information (Tokens, Model, Provider) that lives in the Context section.

Changes

tui/src/services/side_panel.rs

• Added a "Profile" row as the last item in the Context section (after Provider), using the same make_row helper for consistent formatting
• Increased context_height from 5 to 6 to accommodate the new row
• Removed the profile display from render_footer_section — the footer now only shows the version and keyboard shortcuts
• Marked state as unused (_state) in render_footer_section since it no longer reads current_profile_name

Before

  ▾ Context
    Tokens              N/A
    Model               N/A
    Provider         Remote
  ▾ Tasks
    No tasks
  ...
  v0.3.17        profile default
  tab select  enter toggle
  ctrl+y hide  ctrl+g changes

After

  ▾ Context
    Tokens              N/A
    Model               N/A
    Provider         Remote
    Profile         default

  ▾ Tasks
    No tasks
  ...
  v0.3.17
  tab select  enter toggle
  ctrl+y hide  ctrl+g changes

Testing

• cargo check — clean
• cargo clippy — zero warnings