feat: add WonderQ admin backend

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

tests/test_app.py

@@ -0,0 +1,9 @@
+from fastapi.testclient import TestClient
+from app.main import create_app
+
+
+def test_health_endpoint():
+    client = TestClient(create_app())
+    response = client.get("/health")
+    assert response.status_code == 200
+    assert response.json() == {"ok": True, "service": "miniapp-api"}

tests/test_auth.py

@@ -0,0 +1,7 @@
+from app.auth import hash_password, verify_password
+
+
+def test_bcrypt_hash_verifies_password():
+    password_hash = hash_password("ChangeMe123!", rounds=4)
+    assert verify_password("ChangeMe123!", password_hash)
+    assert not verify_password("bad-password", password_hash)

tests/test_schemas.py

@@ -0,0 +1,13 @@
+import pytest
+from pydantic import ValidationError
+from app.schemas import LeadCreateIn, ProductCreateIn
+
+
+def test_lead_phone_is_normalized():
+    lead = LeadCreateIn(phone="  187  8617 4929  ")
+    assert lead.phone == "187 8617 4929"
+
+
+def test_product_title_requires_two_chars():
+    with pytest.raises(ValidationError):
+        ProductCreateIn(title="A")