Draft: Refactor and implement API version of the worker

Closes #17

tests/data/api/c673bd94-96b1-4a2e-8662-a4d806940b5f.json

+
+{
+    "id": "c673bd94-96b1-4a2e-8662-a4d806940b5f",
+    "type": "page",
+    "name": "c02-026",
+    "zone": {
+        "id": "c673bd94-96b1-4a2e-8662-a4d806940b5f",
+        "polygon": [
+            [
+                0,
+                0
+            ],
+            [
+                0,
+                3542
+            ],
+            [
+                2479,
+                3542
+            ],
+            [
+                2479,
+                0
+            ],
+            [
+                0,
+                0
+            ]
+        ],
+        "image": {
+            "id": "e3c755f2-0e1c-468e-ae4c-9206f0fd267a",
+            "path": "public%2Fiam%2Fc02-026.png",
+            "width": 2479,
+            "height": 3542,
+            "url": "https://europe-gamma.iiif.teklia.com/iiif/2/public%2Fiam%2Fc02-026.png",
+            "s3_url": null,
+            "status": "unchecked",
+            "server": {
+                "display_name": "Teklia IIIF Europe cluster (gamma)",
+                "url": "https://europe-gamma.iiif.teklia.com/iiif/2",
+                "max_width": null,
+                "max_height": null
+            }
+        },
+        "url": "https://europe-gamma.iiif.teklia.com/iiif/2/public%2Fiam%2Fc02-026.png/0,0,2479,3542/full/0/default.jpg"
+    },
+    "rotation_angle": 0,
+    "mirrored": false,
+    "classifications": [
+        {
+            "id": "87eefe10-bdd0-433d-90e1-dd6d84a2df99",
+            "ml_class": {
+                "id": "2549f623-00fe-4fb2-ba6d-3ba8f565be7e",
+                "name": "Tokyo bébé chachou d'amour"
+            },
+            "state": "validated",
+            "confidence": 1.0,
+            "high_confidence": true,
+            "worker_version": null,
+            "worker_run": null
+        }
+    ],
+    "worker_version": null,
+    "confidence": null,
+    "worker_run": null
+}
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