feat: implement OpsBridge CLI (BRIDGE-WP-0001)

Full TDD implementation of the `bridge` CLI tool covering all phases
from BRIDGE-WP-0001: project scaffolding, config loading, state
management, audit logging, health checks, tunnel lifecycle manager, and
all CLI commands (up/down/restart/status/logs). 77 tests, all green.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,34 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "ops-bridge"
+version = "0.1.0"
+description = "SSH reverse tunnel lifecycle manager"
+requires-python = ">=3.11"
+dependencies = [
+    "typer>=0.12",
+    "pyyaml>=6.0",
+    "httpx>=0.27",
+]
+
+[project.scripts]
+bridge = "bridge.cli:app"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/bridge"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["src"]
+
+[tool.ruff]
+line-length = 88
+
+[dependency-groups]
+dev = [
+    "pytest>=8.0",
+    "pytest-asyncio>=0.23",
+    "ruff>=0.4",
+]