feat(container): add pinned Playwright Docker image and compose stack for Matomo bootstrap

- Add Dockerfile based on pinned Playwright image (v1.46.0-jammy) for reproducible browser runtime
- Introduce docker-compose stack (MariaDB + Matomo + one-shot bootstrap)
- Extend Makefile with container image and stack management targets
- Add env.sample for environment-driven bootstrap configuration
- Relax Playwright dependency to >=1.46.0 to keep Nix builds compatible
- Add E2E test ensuring docker-compose bootstrap exits with 0 and prints token

Makefile

@@ -1,4 +1,8 @@
 PYTHON ?= python3
+
+# ----------------------------
+# E2E (existing)
+# ----------------------------
 COMPOSE_FILE := tests/e2e/docker-compose.yml
 COMPOSE := docker compose -f $(COMPOSE_FILE)
 
@@ -13,7 +17,25 @@ MATOMO_ADMIN_PASSWORD ?= AdminSecret123!
 MATOMO_ADMIN_EMAIL ?= administrator@example.org
 MATOMO_TOKEN_DESCRIPTION ?= e2e-make-token
 
-.PHONY: help venv deps-e2e playwright-install e2e-up e2e-install e2e-test e2e-down e2e logs clean
+# ----------------------------
+# Container image (production-like)
+# ----------------------------
+IMAGE_NAME ?= ghcr.io/kevinveenbirkenbach/matomo-bootstrap
+IMAGE_VERSION ?= 1.0.1
+
+# Optional .env file for container runs
+ENV_FILE ?= .env
+
+# ----------------------------
+# docker-compose stack (Matomo + MariaDB + Bootstrap)
+# ----------------------------
+COMPOSE_STACK_FILE ?= docker-compose.yml
+COMPOSE_STACK := docker compose -f $(COMPOSE_STACK_FILE)
+
+.PHONY: help \
+        venv deps-e2e playwright-install e2e-up e2e-install e2e-test e2e-down e2e logs clean \
+        image-build image-run image-shell image-push image-clean \
+        stack-up stack-down stack-logs stack-ps stack-bootstrap stack-rebootstrap stack-clean stack-reset
 
 help:
 	@echo "Targets:"
@@ -25,11 +47,33 @@ help:
 	@echo "  e2e-test           Run E2E tests (unittest)"
 	@echo "  e2e-down           Stop and remove E2E containers"
 	@echo "  e2e                Full cycle: up → install → test → down"
-	@echo "  logs               Show Matomo logs"
-	@echo "  clean              Stop containers + remove venv"
+	@echo "  logs               Show Matomo logs (E2E compose)"
+	@echo "  clean              Stop E2E containers + remove venv"
 	@echo ""
-	@echo "Variables (override like: make e2e MATOMO_URL=http://127.0.0.1:8081):"
-	@echo "  MATOMO_URL, MATOMO_ADMIN_USER, MATOMO_ADMIN_PASSWORD, MATOMO_ADMIN_EMAIL, MATOMO_TOKEN_DESCRIPTION"
+	@echo "Container image targets:"
+	@echo "  image-build        Build matomo-bootstrap container image"
+	@echo "  image-run          Run container bootstrap using $(ENV_FILE) (token-only stdout)"
+	@echo "  image-shell        Start interactive shell in container"
+	@echo "  image-push         Push image tags ($(IMAGE_VERSION) + latest)"
+	@echo "  image-clean        Remove local image tags"
+	@echo ""
+	@echo "docker-compose stack targets (docker-compose.yml):"
+	@echo "  stack-up           Start MariaDB + Matomo (no bootstrap)"
+	@echo "  stack-bootstrap    Run one-shot bootstrap (prints token to stdout)"
+	@echo "  stack-reset        Full reset: down -v → build → up → bootstrap"
+	@echo "  stack-down         Stop stack"
+	@echo "  stack-clean        Stop stack and REMOVE volumes (DANGER)"
+	@echo "  stack-logs         Follow Matomo logs (stack)"
+	@echo "  stack-ps           Show stack status"
+	@echo ""
+	@echo "Variables:"
+	@echo "  E2E: MATOMO_URL, MATOMO_ADMIN_USER, MATOMO_ADMIN_PASSWORD, MATOMO_ADMIN_EMAIL, MATOMO_TOKEN_DESCRIPTION"
+	@echo "  IMG: IMAGE_NAME, IMAGE_VERSION, ENV_FILE"
+	@echo "  STK: COMPOSE_STACK_FILE"
+
+# ----------------------------
+# E2E targets
+# ----------------------------
 
 venv:
 	@test -x "$(VENV_PY)" || ($(PYTHON) -m venv $(VENV_DIR))
@@ -72,6 +116,11 @@ e2e-test: deps-e2e
 e2e-down:
 	$(COMPOSE) down -v
 
+e2e-nix:
+	docker compose -f tests/e2e/docker-compose.yml up -d
+	python3 -m unittest -v tests/e2e/test_bootstrap_nix.py
+	docker compose -f tests/e2e/docker-compose.yml down -v
+
 e2e: e2e-up e2e-install e2e-test e2e-down
 
 logs:
@@ -79,3 +128,75 @@ logs:
 
 clean: e2e-down
 	rm -rf $(VENV_DIR)
+
+# ----------------------------
+# Container image workflow
+# ----------------------------
+
+image-build:
+	docker build -t $(IMAGE_NAME):$(IMAGE_VERSION) -t $(IMAGE_NAME):latest .
+
+image-run:
+	@test -f "$(ENV_FILE)" || (echo "Missing $(ENV_FILE). Create it from env.sample."; exit 1)
+	docker run --rm \
+	  --env-file "$(ENV_FILE)" \
+	  --network host \
+	  $(IMAGE_NAME):$(IMAGE_VERSION)
+
+image-shell:
+	@test -f "$(ENV_FILE)" || (echo "Missing $(ENV_FILE). Create it from env.sample."; exit 1)
+	docker run --rm -it \
+	  --env-file "$(ENV_FILE)" \
+	  --network host \
+	  --entrypoint /bin/bash \
+	  $(IMAGE_NAME):$(IMAGE_VERSION)
+
+image-push:
+	docker push $(IMAGE_NAME):$(IMAGE_VERSION)
+	docker push $(IMAGE_NAME):latest
+
+image-clean:
+	docker rmi $(IMAGE_NAME):$(IMAGE_VERSION) $(IMAGE_NAME):latest || true
+
+# ----------------------------
+# docker-compose stack workflow
+# ----------------------------
+
+## Start MariaDB + Matomo (without bootstrap)
+stack-up:
+	$(COMPOSE_STACK) up -d db matomo
+	@echo "Matomo is starting on http://127.0.0.1:8080"
+
+## Run one-shot bootstrap (prints token to stdout)
+stack-bootstrap:
+	$(COMPOSE_STACK) run --rm bootstrap
+
+## Re-run bootstrap (forces a fresh one-shot run)
+stack-rebootstrap:
+	$(COMPOSE_STACK) rm -f bootstrap || true
+	$(COMPOSE_STACK) run --rm bootstrap
+
+## Follow Matomo logs (stack)
+stack-logs:
+	$(COMPOSE_STACK) logs -f matomo
+
+## Show running services (stack)
+stack-ps:
+	$(COMPOSE_STACK) ps
+
+## Stop stack
+stack-down:
+	$(COMPOSE_STACK) down
+
+## Stop stack and REMOVE volumes (DANGER)
+stack-clean:
+	$(COMPOSE_STACK) down -v
+
+## Full reset: down -v → rebuild bootstrap → up → bootstrap
+stack-reset:
+	$(COMPOSE_STACK) down -v
+	$(COMPOSE_STACK) build --no-cache bootstrap
+	$(COMPOSE_STACK) up -d db matomo
+	@echo "Waiting for Matomo to become reachable..."
+	@sleep 10
+	$(COMPOSE_STACK) run --rm bootstrap