docs(backend_api): set proper entry point and include all internal modules

package-lock.json

@@ -192,6 +192,7 @@
         "tslib": "2.8.1",
         "tsx": "4.19.3",
         "typedoc": "0.28.2",
+        "typedoc-plugin-missing-exports": "4.0.0",
         "typescript": "5.8.3",
         "typescript-eslint": "8.29.1",
         "vanilla-js-wheel-zoom": "9.0.4",
@@ -20342,6 +20343,16 @@
         "typescript": "5.0.x || 5.1.x || 5.2.x || 5.3.x || 5.4.x || 5.5.x || 5.6.x || 5.7.x || 5.8.x"
       }
     },
+    "node_modules/typedoc-plugin-missing-exports": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/typedoc-plugin-missing-exports/-/typedoc-plugin-missing-exports-4.0.0.tgz",
+      "integrity": "sha512-Z4ei+853xppDEhcqzyeyRs4+R0kUuKQWnMK1EtSTEd5LFkgkdW5Bdn8vfo/rsCGbYVJxOWU99fxgM1mROw5Fug==",
+      "dev": true,
+      "license": "MIT",
+      "peerDependencies": {
+        "typedoc": "^0.28.1"
+      }
+    },
     "node_modules/typedoc/node_modules/brace-expansion": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",