pitwall v0.1.0-beta.7

• Agents in pitwall panes can message each other in both directions.
  pitwall send #3.2 -- "critique plan.md" returns at once; pitwall types
  the message into that pane's agent the next time it sits at its prompt
  and you are not typing there, one message per turn, under a line that
  names the sender and the command to reply with, such as pitwall send @8c1f3a90d2e4b7a1 "...". An agent that waited on another with
  prompt --wait while that one prompted it back would wait forever;
  messages wait in a queue instead. After 20 messages from agents into
  one pane, pitwall refuses more until you type in that pane, so two
  agents cannot talk on your quota forever. A pane address can now be
  @ and the pane's id, which stays valid while tabs move, and
  ls --json counts each pane's queued messages. Restart the daemon to
  use send.
• pitwall hooks install adds a pitwall skill for Claude Code and Codex,
  skills/pitwall/SKILL.md, that tells them how to ask or message another
  agent in a pane, and that a message from one carries none of your
  authority. Run pitwall hooks install again, or press Install in
  Settings, to get it.