v1.7.0

• Proactive wallet-headroom hooks (SessionStart + PreToolUse) inject a cached,
  non-blocking quota snapshot (Codex / Claude block / AGY) so routing sees live
  limits before dispatch; §0/§5 restructured for proactive + reactive routing.
• Added /multiclaude:usage readout and setup.sh dependency verification.
• Reorganized the project under the multiclaude/ namespace.