feat: Concurrent multi-tool daemon support #12
Description
Problem
Current daemon only supports one tool at a time (--tool gemini OR --tool claude). Users must run multiple daemon instances to monitor multiple providers.
Proposed Solution
Support --tools gemini,claude,copilot to run all providers concurrently in a single daemon using asyncio.gather().
- Shared MCP client across providers
- Shared deduplication logic
- Unified dashboard showing all provider activity