feat: add WonderQ admin backend

Add FastAPI admin/public API service, database setup, Docker deployment files, docs, and tests.

pyproject.toml

@@ -0,0 +1,26 @@
+[project]
+name = "wonderq-admin"
+version = "0.1.0"
+description = "WonderQ Admin API service"
+requires-python = ">=3.12,<3.15"
+dependencies = [
+  "fastapi>=0.115,<0.116",
+  "uvicorn[standard]>=0.32,<0.33",
+  "SQLAlchemy>=2.0,<2.1",
+  "alembic>=1.14,<1.15",
+  "psycopg[binary]>=3.2,<3.3",
+  "pydantic-settings>=2.6,<2.7",
+  "PyJWT>=2.10,<2.11",
+  "bcrypt>=4.2,<4.3",
+  "email-validator>=2.2,<2.3",
+]
+
+[project.optional-dependencies]
+test = [
+  "pytest>=8.3,<8.4",
+  "httpx>=0.27,<0.28",
+]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["."]