Add automatic memory integration so EJClaw host directly calls Memento
MCP for recall at session start and reflect on compact, removing
reliance on agent voluntary tool use.
Stage 1: New sessions get room memory briefing injected into system
prompt (CLAUDE.md / AGENTS.md) via host-side MCP client.
Stage 2: PreCompact hook automatically calls reflect + remember to
persist session summaries as room-memory fragments.
Also restores missing source files (token-rotation, codex-token-rotation,
claude-usage exports) to fix full build from source.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Fix token rotation not taking effect: getCurrentToken() was shadowed
by static .env CLAUDE_CODE_OAUTH_TOKEN value in agent environment
- Don't fall back to Kimi on usage-exhausted (only on transient 429/network)
- Add disk cache for Claude usage API data (survives restarts, 429s)
- Rate-limit usage API calls to 1 per token per 5 minutes
- Add ignoreRateLimits option to rotateToken() for exhausted recovery
- Rotate to next token in getActiveProvider() when current is exhausted
- Add isUsageExhausted() helper to provider-fallback
