feat: proxy-side compression for all providers + full MCP tool suite
- message-compressor.ts: code-block-aware compression for Anthropic + OpenAI messages
- anthropic-proxy.ts: fix OAuth Bearer token forwarding (Claude Code subscription auth)
+ integrate proxy-side compression, track tokens_saved per ticket
- openai-proxy.ts: integrate proxy-side compression, track tokens_saved
- mcp/compression.ts: lean-ctx-style modes (full/signatures/map/aggressive/entropy)
+ RTK-style patterns for git/npm/cargo/docker/ls output
- mcp/server.ts: 8 tools — tv_read, tv_shell, tv_search, tv_compress, tv_update,
tv_ticket, tv_cost, tv_health
- tv_update: auto-update lean-ctx (cargo install) + RTK (brew upgrade)
- scripts/update-compression-tools.sh + LaunchAgent plist: daily auto-update at 03:00
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