Created /api/v1/keys, access-requests, telemetry, agent. Documented endpoints at /api/v1/docs

API_DOCS.md

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+# API docs
+
+The API v1 interactive documentation is served by Django Ninja at `/api/v1/docs`.
+
+What it provides:
+- Swagger UI for all v1 routes, request/response schemas, and example payloads.
+- Try-it-out support for GET/POST/PATCH/DELETE.
+
+Authentication:
+- Session auth works in the browser, but unsafe requests require CSRF.
+- For API testing, use JWT: add `Authorization: Bearer <access_token>`.
+
+Notes:
+- Base URL for v1 endpoints is `/api/v1`.
+- Admin-only routes return `403 Forbidden` when the token user is not staff/superuser.