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.

pyproject.toml

@@ -0,0 +1,41 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "wise-validator"
+version = "0.0.0"
+description = "Cross-repo use-case validation meta-framework for Coulomb"
+readme = "README.md"
+requires-python = ">=3.11"
+license = "MIT-0"
+dependencies = [
+    "typer>=0.12",
+    "pydantic>=2.0",
+    "pyyaml>=6.0",
+]
+
+[project.scripts]
+validate = "wisevalidator.cli:app"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/wisevalidator"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["src"]
+addopts = "-ra --strict-markers --strict-config"
+
+[tool.ruff]
+src = ["src", "tests"]
+target-version = "py311"
+line-length = 100
+
+[tool.ruff.lint]
+select = ["E", "F", "I", "UP", "B", "SIM"]
+
+[dependency-groups]
+dev = [
+    "pytest>=8.0",
+    "ruff>=0.6",
+]