bootstrap SAM stack — S3 bucket + stub Lambda

Makefile

@@ -1,15 +1,12 @@
 .PHONY: up down seed invoke install logs console clean graphs docs kind tilt-up tilt-down
 
 PY ?= .venv/bin/python
-PIP ?= .venv/bin/pip
 COMPOSE := docker compose -f ctrl/docker-compose.yml
 DOT_SRC := $(wildcard docs/graphs/*.dot)
 SVG_OUT := $(DOT_SRC:.dot=.svg)
 
 install:
-	python3 -m venv .venv
-	$(PIP) install -U pip
-	$(PIP) install -r requirements.txt
+	uv sync
 
 up:
 	$(COMPOSE) up -d