feat: initial IRC bouncer implementation

Async Python IRC bouncer with SOCKS5 proxy support, multi-network
connections, password auth, and persistent SQLite backlog with replay.

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

ROADMAP.md

@@ -0,0 +1,38 @@
+# Roadmap
+
+## v0.1.0 (current)
+
+- [x] IRC protocol parser/formatter
+- [x] TOML configuration
+- [x] SOCKS5 proxy connector
+- [x] Multi-network support
+- [x] Client authentication (password)
+- [x] Persistent backlog (SQLite)
+- [x] Backlog replay on reconnect
+- [x] Automatic reconnection with backoff
+- [x] Nick collision handling
+- [x] TLS support
+
+## v0.2.0
+
+- [ ] Client-side TLS (accept TLS from clients)
+- [ ] Per-network password support
+- [ ] CTCP version/ping response
+- [ ] Channel key support (JOIN #channel key)
+- [ ] SASL authentication to IRC servers
+- [ ] Configurable backlog format (timestamps)
+
+## v0.3.0
+
+- [ ] Web status page
+- [ ] Hot config reload (SIGHUP)
+- [ ] Systemd service file
+- [ ] Per-client backlog tracking (multi-user)
+- [ ] DCC passthrough
+
+## v1.0.0
+
+- [ ] Stable API
+- [ ] Comprehensive test coverage
+- [ ] Documentation complete
+- [ ] Packaged for PyPI