Move information to metadata, reformat genres

Part-of: <https://dev.funkwhale.audio/funkwhale/funkwhale/-/merge_requests/2629>

docs/specs/nodeinfo21/index.md

@@ -67,22 +67,22 @@ The NodeInfo endpoint must contain all mandatory elements listed in the specific
 `content.local` (Object)
 : An object containing a summary of local content
 
-`content.local.artists` (number)
+`content.local.artists` (Number)
 : The number of artists associated with local uploads on the pod
 
-`content.local.releases` (number)
+`content.local.releases` (Number)
 : The number of albums or series associated with local uploads on the pod
 
-`content.local.recordings` (number)
+`content.local.recordings` (Number)
 : The number of tracks or episodes associated with local uploads on the pod
 
-`content.local.hoursOfContent` (number)
+`content.local.hoursOfContent` (Number)
 : The total number of hours of content associated with local uploads on the pod
 
-`content.topMusicCategories` (Array\<Object\>)
+`content.topMusicCategories` (Array\<{ `name`: String, `count`: Number}>)
 : The top three music genres and the number of uploads tagged with them
 
-`content.topPodcastCategories` (Array\<Object\>)
+`content.topPodcastCategories` (Array\<{ `name`: String, `count`: Number}>)
 : The top three podcast categories and the number of uploads tagged with them
 
 `languages` (Array\<String\>)
@@ -97,6 +97,15 @@ The NodeInfo endpoint must contain all mandatory elements listed in the specific
 `federation.followingInstances` (Number)
 : The number of Funkwhale pods that publicly follow the target pod
 
+`usage.listenings` (Number)
+: The total number of listenings on the pod
+
+`usage.downloads` (Number)
+: The total number of downloads (streams) the pod has served
+
+`usage.favorites.tracks` (Number)
+: The total number of track favorites recorded on the pod.
+
 `features` (Array\<String\>)
 : A list of enabled features
 
@@ -134,12 +143,7 @@ Example response:
       "activeMonth": 0
     },
     "localPosts": 0,
-    "localComments": 0,
-    "listenings": 0,
-    "downloads": 0,
-    "favorites": {
-      "tracks": 0
-    }
+    "localComments": 0
   },
   "metadata": {
     "actorId": "string",
@@ -168,24 +172,30 @@ Example response:
       },
       "topMusicCategories": [
         {
-          "rock": 1256
+          "name": "rock",
+          "count": 1256
         },
         {
-          "jazz": 604
+          "name": "jazz",
+          "count": 604
         },
         {
-          "classical": 308
+          "name": "classical",
+          "count": 308
         }
       ],
       "topPodcastCategories": [
         {
-          "comedy": 12
+          "name": "comedy",
+          "count": 12
         },
         {
-          "politics": 4
+          "name": "politics",
+          "count": 4
         },
         {
-          "nature": 1
+          "name": "nature",
+          "count": 1
         }
       ],
       "federation": {
@@ -193,6 +203,13 @@ Example response:
         "followingInstances": 0
       }
     },
+    "usage": {
+      "listenings": 0,
+      "downloads": 0,
+      "favorites": {
+        "tracks": 0
+      }
+    },
     "features": [
       "channels",
       "podcasts",

docs/specs/nodeinfo21/schema.yml

@@ -444,18 +444,6 @@ components:
             localComments:
               type: integer
               minimum: 0
-            listenings:
-              type: integer
-              minimum: 0
-            downloads:
-              type: integer
-              minimum: 0
-            favorites:
-              type: object
-              properties:
-                tracks:
-                  type: integer
-                  minimum: 0
         metadata:
           type: object
           properties:
@@ -524,22 +512,36 @@ components:
                   type: array
                   items:
                     type: object
-                    additionalProperties:
-                      type: integer
+                    properties:
+                      name:
+                        type: string
+                      count:
+                        type: integer
+                        minimum: 0
                   example:
-                    - "rock": 1256
-                    - "jazz": 604
-                    - "classical": 308
+                    - name: "rock"
+                      count: 1256
+                    - name: "jazz"
+                      count: 604
+                    - name: "classical"
+                      count: 308
                 topPodcastCategories:
                   type: array
                   items:
                     type: object
-                    additionalProperties:
-                      type: integer
+                    properties:
+                      name:
+                        type: string
+                      count:
+                        type: integer
+                        minimum: 0
                   example:
-                    - "comedy": 12
-                    - "politics": 4
-                    - "nature": 1
+                    - name: "comedy"
+                      count: 12
+                    - name: "politics"
+                      count: 4
+                    - name: "nature"
+                      count: 1
                 federation:
                   type: object
                   properties:
@@ -547,6 +549,21 @@ components:
                       type: integer
                     followingInstances:
                       type: integer
+            usage:
+              type: object
+              properties:
+                listenings:
+                  type: integer
+                  minimum: 0
+                downloads:
+                  type: integer
+                  minimum: 0
+                favorites:
+                  type: object
+                  properties:
+                    tracks:
+                      type: integer
+                      minimum: 0
             features:
               type: array
               items: