feat: Add version tracking via pyproject.toml

- Add pyproject.toml as single source of truth for version and metadata
- Update config.py to read version from pyproject.toml using tomllib
- FastAPI app now loads title and version dynamically from config
- Health endpoint now includes version in response
- Dockerfile updated to include pyproject.toml

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,45 @@
+[project]
+name = "the-scheduler"
+version = "1.0.1"
+description = "System-wide maintenance orchestration - backups, doc mirroring, cleanup, task automation"
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+    # FastAPI ecosystem
+    "fastapi~=0.124.0",
+    "uvicorn[standard]~=0.38.0",
+    "pydantic~=2.12.5",
+    "pydantic-settings~=2.7.0",
+    # Task scheduling
+    "apscheduler~=3.11.1",
+    "sqlalchemy~=2.0.36",
+    # Database
+    "psycopg2-binary~=2.9.11",
+    "redis~=5.2.0",
+    # HTTP client
+    "httpx~=0.28.1",
+    # Web scraping (for doc mirroring)
+    "scrapy~=2.12.0",
+    "beautifulsoup4~=4.12.3",
+    "lxml~=5.1.0",
+    # Git operations
+    "gitpython~=3.1.43",
+    # Security/Auth
+    "python-jose[cryptography]~=3.3.0",
+]
+
+[project.optional-dependencies]
+test = [
+    "pytest~=8.3.4",
+    "pytest-asyncio~=0.25.2",
+    "pytest-cov~=6.0.0",
+    "freezegun~=1.5.1",
+]
+
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["src*"]