Add app scaffold and workflows

app/backend/pyproject.toml

@@ -0,0 +1,42 @@
+[project]
+name = "avaaz-backend"
+version = "0.1.0"
+description = "FastAPI backend for avaaz.ai with health check."
+authors = [{ name = "avaaz.ai" }]
+requires-python = ">=3.12"
+dependencies = [
+  "fastapi>=0.115.4,<0.116",
+  "uvicorn[standard]>=0.30.6,<0.31",
+  "pydantic-settings>=2.6.1,<3",
+  "gunicorn>=22.0,<23",
+]
+
+[project.optional-dependencies]
+dev = [
+  "pytest>=8.3,<9",
+  "pytest-cov>=5.0,<6",
+  "hypothesis>=6.112,<7",
+  "httpx>=0.27,<0.28",
+]
+
+[dependency-groups]
+dev = [
+  "pytest>=8.3,<9",
+  "pytest-cov>=5.0,<6",
+  "hypothesis>=6.112,<7",
+  "httpx>=0.27,<0.28",
+]
+
+[tool.pytest.ini_options]
+addopts = "-ra"
+testpaths = ["tests"]
+
+[tool.setuptools]
+py-modules = ["main"]
+
+[tool.setuptools.packages.find]
+include = ["api*", "core*", "features*", "operations*"]
+
+[build-system]
+requires = ["setuptools>=68", "wheel"]
+build-backend = "setuptools.build_meta"