feat: add initial project structure with snek chat server and registration form

Set up the Python project skeleton including pyproject.toml, setup.cfg, Makefile, .gitignore, and README. Implement the core snek application with aiohttp-based web server, model validation framework, and a registration form with username, email, and password fields.

Makefile

@@ -0,0 +1,13 @@
+PYTHON=./.venv/bin/python 
+PIP=./.venv/bin/pip 
+APP=./venv/bin/snek.serve
+PORT = 8081
+
+
+install:
+	python3 -m venv .venv 
+	$(PIP) install -e .
+
+run:
+	$(APP) --port=$(PORT)
+