feat(tui): move background task feedback from left to right on input box top border

[adolfousier]

Current Layout (input box top border)

In src/tui/render/input.rs, render_input():

• Top border, LEFT: background task feedback (bg_task_title, Alignment::Left) -- e.g. "cargo clippy 18s"
• Top border, RIGHT: attachment indicators (attach_title, Alignment::Right) -- e.g. "[Image Use candle as a powerful way to run local LLMs without OLLAMA #1]"
• Bottom border, RIGHT: context budget (context_title, via title_bottom) -- e.g. "ctx: 118K/200K (59%)"

Desired Layout

Move the background task feedback from the LEFT to the RIGHT side of the top border, so it sits above the context budget:

• No attachments: bg task right-aligned on the top border
• With attachments: bg task to the LEFT of attachments, both right-aligned on the top border

Visual result:

Top border:    [... bg_task] [Image #1]
Bottom border: [... ctx: 118K/200K (59%)]

Implementation

File: src/tui/render/input.rs, render_input() function.

1. Change bg_task_title from Alignment::Left to Alignment::Right
2. Reorder the .title() calls on the block so attachments are added FIRST, then bg_task SECOND. Ratatui renders right-aligned titles right-to-left in insertion order, so adding attach first + bg_task second gives the visual order [bg_task] [attach] (bg_task left of attach). If the ordering is wrong, combine bg_task + attachment spans into a single right-aligned title to guarantee left-to-right order.

Context

Requested by Adolfo. The background task feedback (detached background commands like cargo clippy) should be visually grouped with the context budget on the right side, not isolated on the left.

[adolfousier]

Implementation in progress. Fix: src/tui/render/input.rs render_input() function.

Two changes:

1. Changed bg_task_title alignment from Alignment::Left to Alignment::Right
2. Swapped .title() call order: attachments added first (rightmost on top border), then bg_task to their left

When no attachments: bg_task floats right-aligned above ctx budget.
When attachments present: [bg_task] [Image #1] on the top border right side.

[adolfousier]

Fixed in b35c271.

Changed bg_task_title alignment from Alignment::Left to Alignment::Right in render_input() (src/tui/render/input.rs). Swapped the .title() call order so attachments render rightmost and bg-task floats to their left. When no attachments present, bg-task is simply right-aligned above the context budget.