v1.6.9 — Periodic rule reinforcement (mid-session digest injection)

The Gap

Claude Code caches memory files — they're only read at session start and after compaction. Behavioral digest rules written to memdir are invisible mid-session. This means corrections extracted during a session don't take effect until the next restart.

The Fix

New cozempic remind command, wired as a PostToolUse hook. Every 25 tool calls, outputs active digest rules + critical CLAUDE.md rules to stderr. Claude sees stderr as context, keeping rules in the recency window.

Cozempic behavioral rules (reminder #3):
  [R001|git] Do not add Co-Authored-By to commits
  [R002|file-ops] Always use Edit for existing files
  NEVER push directly to main branch

• Fires on ALL tool calls (unmatched PostToolUse)
• Counter file prevents output on every call (every 25th only)
• Includes both digest rules AND CLAUDE.md enforcement markers (MUST NEVER, CRITICAL, etc.)
• ~100 tokens every 25 turns — minimal cost, maximum compliance

Inspired by @yurukusa's approach in anthropics/claude-code#6354.