[FEATURE] Mobile Remote Control: persistent context-window usage indicator

Feature request

When I control a Claude Code session from the Claude Android app via Remote Control, there is no persistent indicator of context-window usage. The CLI statusline does not render remotely.

/context sent from the app does work and returns the full breakdown, which confirms the data is available to the app. Checking it means sending a command and reading a long table every time, though, so in practice I lose track of how full the session is until autocompact kicks in.

Ask: a small, always-visible context indicator for Remote Control sessions in the mobile app (e.g. 84.7k / 1M · 8%), ideally tappable to open the /context breakdown.

Prior requests, all closed (one as not planned, two locked for inactivity), so demand keeps recurring:

• #76794
• #71583
• #29646