v0.5.7

A task keeps running when you close the side panel. The toolbar icon counts the
turns in flight, reopening a panel replays what happened while it was away —
including cards still waiting for your answer — and Stop parks the tab takeover
right away instead of waiting for a turn that may never end. Takeover rows carry
hover actions (focus the tab, take it back), each with an inline confirm.

Heavy replies no longer wedge a session: the bridge used to stop reading the
agent's output once a single line passed 4MB, which any session that had just
read an image would hit, and the panel stayed on "running" forever. It now reads
without a line cap and trims oversized payloads before they reach the panel.

Agents whose own CLI you uninstalled drop out of the picker. Claude Code and
Codex keep working through the ACP adapter OpenSider installed, so they stayed
listed even after claude / codex were gone; they are now hidden until the
CLI is back.

Assets: the six platform binaries of the local bridge (opensider-*), plus
extension.zip with the browser extension itself.