docs: update project structure

Author: brettstack

src/content/docs/docs/project-walkthrough/backend/auth-identity.mdx

@@ -20,10 +20,11 @@ The User Pool only stores user information required for authentication. All othe
     - cognito-post-confirmation.ts
     - cognito-pre-signup.test.ts
     - cognito-pre-signup.ts
-  - controllers
-    - user.ts
-  - models
-    - User.ts
+  - api
+    - controllers
+      - user.ts
+    - models
+      - User.ts
   - cdk # see the [Cloud Infrastructure](./cloud-infrastructure#auth) guide for more details
     - lib
       - constructs

src/content/docs/docs/project-walkthrough/backend/database.mdx

@@ -11,14 +11,15 @@ Code Genie projects include an infinitely scalable Serverless Database using [AW
 
 <FileTree>
 - packages
-  - controllers
-    - user.ts
-    - widget.ts
-  - models
-    - User.ts
-    - Widget.ts
-  - utils
-    dynamodb.ts
+  - api
+    - controllers
+      - user.ts
+      - widget.ts
+    - models
+      - User.ts
+      - Widget.ts
+    - utils
+      dynamodb.ts
   - cdk # see the [Cloud Infrastructure](./cloud-infrastructure#database) guide for more details
     - lib
       - constructs

src/content/docs/docs/project-walkthrough/backend/overview.mdx

@@ -33,6 +33,17 @@ The backend utilizes the following core services, libraries, and frameworks:
 <FileTree>
 - packages
   - api
+    - controllers
+      - user.ts
+    - models
+      - User.ts
+    - errors
+      - BadRequestError.ts
+      - BaseError.ts
+      - index.ts
+      - NotFoundError.ts
+      - UnauthenticatedError.ts
+      - UserInputError.ts
     - routes
       - apps.ts
       - me.ts
@@ -77,17 +88,9 @@ The backend utilizes the following core services, libraries, and frameworks:
     - package-lock.json
     - package.json
     - tsconfig.json
-  - controllers
-    - user.ts
-  - models
-    - User.ts
   - cognito
     - cognito-post-confirmation.test.ts
     - cognito-post-confirmation.ts
     - cognito-pre-signup.test.ts
     - cognito-pre-signup.ts
-  - controllers
-    - user.ts
-  - models
-    - User.ts
 </FileTree>

src/content/docs/docs/project-walkthrough/overview.mdx

@@ -26,18 +26,8 @@ Below is a high-level view of the overall project structure. In the following gu
       - ...
     - cognito
       - ...
-    - common
-      - ...
-    - controllers
-      - ...
-    - errors
-      - ...
-    - models
-      - ...
     - ui
       - ...
-    - utils
-      - ...
 - README.md
 - package.json
 - ...