v0.1.2

Follow-up input fixes.

Fixed

• Pasted newlines never submit, robustly — post-paste grace window absorbs a trailing Enter
  delivered a few ms late (terminals that split a paste into chunks), plus a short coalescing
  window while a key-burst is forming.
• Queue no longer spams turns — messages typed while busy are combined into a single prompt and
  sent as one turn when the agent frees up.
• Interrupt keeps the queue — Esc cancels the running turn but no longer discards queued
  messages; they send once the turn unwinds.
• Image paste reachable — clipboard paste is bound to alt+v and ctrl+shift+v as well as ctrl+v,
  since terminals commonly intercept ctrl+v for their own text paste.

Added

• Click to rewind — left-click a past user message to drop it and everything after (from the
  display and the live conversation) and reload its text into the input for editing/resending.