Unify API routes and document OpenAPI coverage

Author: alexeygrigorev

AGENTS.md

@@ -33,7 +33,7 @@ One-time scripts and temporary files should be in .tmp. It's in .gitignore so we
 There is a public health check endpoint that returns the current version:
 
 ```
-GET /data/health/
+GET /api/health/
 ```
 
 **Response:**
@@ -51,6 +51,6 @@ This endpoint requires no authentication and can be used to:
 
 **Example:**
 ```bash
-curl https://dev.courses.datatalks.club/data/health/
+curl https://dev.courses.datatalks.club/api/health/
 # {"status": "ok", "version": "0.1.0"}
 ```

README.md

@@ -126,7 +126,7 @@ docker exec -it course_management bash
 
 ## Getting the data
 
-There are `/data` endpoints for getting the data
+There are `/api` endpoints for getting the data
 
 Using them:
 
@@ -137,8 +137,8 @@ COURSE="fake-course"
 HOMEWORK="hw1"
 
 curl \
-    -H "Authorization: ${TOKEN}" \
-    "${HOST}/data/${COURSE}/homework/${HOMEWORK}"
+    -H "Authorization: Token ${TOKEN}" \
+    "${HOST}/api/courses/${COURSE}/homeworks/${HOMEWORK}/submissions"
 ```
 
 Make sure to run `make data` to create the admin user and 
@@ -243,4 +243,3 @@ See [endpoints.md](./endpoints.md) for complete API documentation including:
 - Update Enrollment Certificate
 - Create Course Content
 
-