v0.3.11 — chat-memory vault exclusion (CHAT_MEMORY_EXCLUDED_PROJECTS)

feat: chat-memory vault exclusion + bump 0.3.10 → 0.3.11

Add CHAT_MEMORY_EXCLUDED_PROJECTS env var — colon-separated list of
project paths excluded from vault read AND write. Prevents sensitive
repos from being indexed into the chat memory vault.

Usage:
  export CHAT_MEMORY_EXCLUDED_PROJECTS="/home/user/Project/SecretRepo"

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>