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>

Makefile

@@ -0,0 +1,36 @@
+APP_NAME := bouncer
+VENV := .venv
+PIP := $(VENV)/bin/pip
+PYTHON := $(VENV)/bin/python
+BOUNCER := $(VENV)/bin/bouncer
+
+.PHONY: help venv install dev lint fmt test run clean
+
+help: ## Show this help
+	@grep -E '^[a-zA-Z_-]+:.*##' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*## "}; {printf "  \033[38;5;110m%-12s\033[0m %s\n", $$1, $$2}'
+
+venv: ## Create virtual environment
+	python3 -m venv $(VENV)
+	$(PIP) install --upgrade pip
+
+install: venv ## Install package (editable)
+	$(PIP) install -e .
+
+dev: venv ## Install with dev dependencies
+	$(PIP) install -e ".[dev]"
+
+lint: ## Run linter
+	$(VENV)/bin/ruff check src/ tests/
+
+fmt: ## Format code
+	$(VENV)/bin/black src/ tests/
+	$(VENV)/bin/ruff check --fix src/ tests/
+
+test: ## Run tests
+	$(VENV)/bin/pytest -v
+
+run: ## Run bouncer
+	$(BOUNCER) --config config/bouncer.toml
+
+clean: ## Remove build artifacts
+	rm -rf $(VENV) dist build *.egg-info src/*.egg-info