feat(claudecode): bidirectional sync between Engram and Claude Code native memory

[jorgehara]

Problem

Users who switch between Claude Code native and other agents (OpenCode, VS Code, JetBrains, etc.) have two disconnected memory systems:

• Claude Code stores memories as .md files in ~/.claude/projects/{slug}/memory/\
• Engram stores memories in ~/.engram/engram.db\

This means memories saved in one system are invisible to the other.

Proposed Solution

New \�ngram claude-code-sync\ command (and \claude-code-export\ / \claude-code-import\ variants) that synchronizes memories bidirectionally.

Status

This feature has been implemented in PR #203.