Rename app_kernel references to app

Updated Dockerfiles, app.py, and tests to reference 'app' instead of 'app_kernel'. This change standardizes the application entry point and module imports, improving consistency across the backend codebase.

Author: Fr4nc3

src/backend/Dockerfile

@@ -31,4 +31,4 @@ ENV PATH="/app/.venv/bin:$PATH"
 # Install dependencies
 
 EXPOSE 8000
-CMD ["uv", "run", "uvicorn", "app_kernel:app", "--host", "0.0.0.0", "--port", "8000"]
+CMD ["uv", "run", "uvicorn", "app:app", "--host", "0.0.0.0", "--port", "8000"]

src/backend/Dockerfile.NoCache

@@ -31,4 +31,4 @@ ENV PATH="/app/.venv/bin:$PATH"
 # Install dependencies
 
 EXPOSE 8000
-CMD ["uv", "run", "uvicorn", "app_kernel:app", "--host", "0.0.0.0", "--port", "8000"]
+CMD ["uv", "run", "uvicorn", "app:app", "--host", "0.0.0.0", "--port", "8000"]

src/backend/app.py

@@ -1,4 +1,4 @@
-# app_kernel.py
+# app.py
 import logging
 
 from contextlib import asynccontextmanager
@@ -132,7 +132,7 @@ async def user_browser_language_endpoint(user_language: UserLanguage, request: R
     import uvicorn
 
     uvicorn.run(
-        "app_kernel:app",
+        "app:app",
         host="127.0.0.1",
         port=8000,
         reload=True,

src/backend/tests/test_app.py

@@ -41,9 +41,9 @@
     try:
         from src.backend.app import app  # preferred if file exists
     except ModuleNotFoundError:
-        # fallback to app_kernel which exists in this repo
+        # fallback to app which exists in this repo
         import importlib
-        mod = importlib.import_module("src.backend.app_kernel")
+        mod = importlib.import_module("src.backend.app")
         app = getattr(mod, "app", None)
         if app is None:
             create_app = getattr(mod, "create_app", None)
@@ -95,9 +95,9 @@ def test_process_request_endpoint_success():
     headers = {"Authorization": "Bearer mock-token"}
 
     # Mock the RAI success function
-    with patch("app_kernel.rai_success", return_value=True), \
-         patch("app_kernel.initialize_runtime_and_context") as mock_init, \
-         patch("app_kernel.track_event_if_configured") as mock_track:
+    with patch("app.rai_success", return_value=True), \
+         patch("app.initialize_runtime_and_context") as mock_init, \
+         patch("app.track_event_if_configured") as mock_track:
 
         # Mock memory store
         mock_memory_store = MagicMock()
@@ -132,8 +132,8 @@ def test_process_request_endpoint_rai_failure():
     headers = {"Authorization": "Bearer mock-token"}
 
     # Mock the RAI failure
-    with patch("app_kernel.rai_success", return_value=False), \
-         patch("app_kernel.track_event_if_configured") as mock_track:
+    with patch("app.rai_success", return_value=False), \
+         patch("app.track_event_if_configured") as mock_track:
 
         test_input = {
             "session_id": "test-session-123",
@@ -154,8 +154,8 @@ def test_process_request_endpoint_harmful_content():
     headers = {"Authorization": "Bearer mock-token"}
 
     # Mock the RAI failure for harmful content
-    with patch("app_kernel.rai_success", return_value=False), \
-         patch("app_kernel.track_event_if_configured") as mock_track:
+    with patch("app.rai_success", return_value=False), \
+         patch("app.track_event_if_configured") as mock_track:
 
         test_input = {
             "session_id": "test-session-456",
@@ -180,8 +180,8 @@ def test_process_request_endpoint_real_rai_check():
     headers = {"Authorization": "Bearer mock-token"}
 
     # Don't mock RAI - let it run the real check
-    with patch("app_kernel.initialize_runtime_and_context") as mock_init, \
-         patch("app_kernel.track_event_if_configured") as mock_track:
+    with patch("app.initialize_runtime_and_context") as mock_init, \
+         patch("app.track_event_if_configured") as mock_track:
 
         # Mock memory store
         mock_memory_store = MagicMock()