Remove legacy container and GitLab scaffolding and add ruff and pyright checks.

Makefile

@@ -2,17 +2,6 @@ UV ?= uv run
 SRC := tailscalesd
 TESTS := tests
 SHELL := $(shell which bash)
-APP_VERSION := $(shell git rev-parse --short HEAD)
-DOCKER ?= docker
-
-docker-build:
-	DOCKER_BUILDKIT=1 $(DOCKER) build -f docker/Dockerfile \
-		--build-arg=$(APP_VERSION) \
-		-t tailscalesd:latest \
-		.
-
-freeze:
-	uv export --format requirements-txt --no-hashes --no-emit-project > requirements.frozen.txt
 
 fmt:
 	$(UV) black $(SRC)