v0.preview.86

v0.preview.86 - 2026-08-20

Added

• /usage dialog reporting per-model token usage, accounted client-side
• Double-click selects a word and triple-click selects a line in the transcript; alt-screen pager views (ctrl+o) copy on select

Changed

• Thinking collapses to a pulsing marker while it streams, with the full text kept in the ctrl+o transcript; Anthropic adaptive thinking displays summarized by default
• Providers accept stream_idle_timeout_secs to override the 300-second default used for the first-event, SSE-idle, and WebSocket-idle deadlines
• Background job files persist until an explicit discard or the startup sweep, and waiting on a job is now a re-budgetable observation — an expired wait window changes nothing and can be extended; abandoning a shell call interrupts the process
• The experimental Browser tool and its optional Chromium dependency are removed
• @agent-<name> mentions no longer inject an "invoke the agent" reminder; the @ popup keeps its completion rows as a typing convenience
• Dependency updates

Fixed

• Copying a multi-line selection rejoins soft-wrapped lines instead of inserting hard breaks mid-sentence
• A permission-mode change (Shift+Tab) made while a turn is settling is no longer reverted when the turn commits