Implement SAND-WP-0003: validation meta-framework extraction

Port e2e-framework schema, runner, and reporter into wise-validator with
sand-boxer CLI integration, validate run CLI, unit tests, registry capability,
and operator docs.

Makefile

@@ -0,0 +1,29 @@
+.DEFAULT_GOAL := help
+
+.PHONY: help setup install test lint format build check cli-version
+
+help: ## List available make targets
+	@awk 'BEGIN {FS = ":.*## "}; /^[a-zA-Z0-9_.-]+:.*## / {printf "  %-16s %s\n", $$1, $$2}' $(MAKEFILE_LIST)
+
+setup: ## Sync dependencies into .venv
+	uv sync --all-groups
+
+install: ## Install validate CLI to ~/.local/bin (editable)
+	uv tool install -e . --force
+
+test: ## Run the test suite
+	uv run pytest
+
+lint: ## Run ruff lint checks
+	uv run ruff check .
+
+format: ## Auto-format with ruff
+	uv run ruff format .
+
+build: ## Build wheel and sdist
+	uv build
+
+check: lint test ## Run lint and tests (CI gate)
+
+cli-version: ## Smoke test: validate --help
+	uv run validate --help