refactored: to utilise the google adk and production grade agent

tests/test_artifacts.py

@@ -5,19 +5,36 @@ import unittest
 ROOT = pathlib.Path(__file__).parents[1]
 
 
+def get_artifact_text(filename):
+    search_dirs = [
+        ROOT / "deliverables" / "as-is",
+        ROOT / "deliverables" / "target",
+        ROOT / "deliverables" / "validation",
+        ROOT / "deliverables" / "guides",
+        ROOT / "deliverables",
+        ROOT / "docs",
+        ROOT,
+    ]
+    for d in search_dirs:
+        candidate = d / filename
+        if candidate.is_file():
+            return candidate.read_text(encoding="utf-8")
+    raise FileNotFoundError(f"Artifact {filename} not found")
+
+
 class ArtifactTests(unittest.TestCase):
     def test_requirements_defer_products(self):
-        text = (ROOT / "docs/requirements.md").read_text()
+        text = get_artifact_text("requirements.md")
         self.assertIn("Product selection deferred:", text)
         self.assertIn("Open questions", text)
 
     def test_architecture_has_products_and_flow(self):
-        text = (ROOT / "docs/architecture.md").read_text()
+        text = get_artifact_text("architecture.md")
         for product in ("Cloud Run", "Pub/Sub", "Cloud Storage", "Firestore"):
             self.assertIn(product, text)
 
     def test_mermaid_is_flowchart(self):
-        text = (ROOT / "architecture.mmd").read_text()
+        text = get_artifact_text("architecture.mmd")
         self.assertTrue(text.startswith("flowchart"))
         self.assertIn("Cloud Run", text)
 
@@ -28,7 +45,7 @@ class ArtifactTests(unittest.TestCase):
         self.assertNotRegex(main, r"(?i)(password|secret|private_key)\\s*=")
 
     def test_guide_packages_outputs(self):
-        guide = (ROOT / "solution-architecture-guide.md").read_text()
+        guide = get_artifact_text("solution-architecture-guide.md")
         for heading in ("Requirements", "Architecture", "Terraform", "Validation", "Verification"):
             self.assertIn(heading, guide)