sinks: feed /import/check enrichment into /import body

/import/check hydrates each ActivityImport with resolved assetId,
exchangeMic, quoteCcy, instrumentType, quoteMode. The /import endpoint
on Wealthfolio 3.2 does NOT re-resolve — passing an un-enriched row
returns 200 OK but silently drops the activity (activities=[] in the
response).

The first live run returned `imported=63 failed=0` but nothing reached
the database. Fixed by posting the hydrated rows from the check response
to /import instead of the original.

Requires the test to also return list-shaped check responses (matches
the upstream Json<Vec<ActivityImport>> signature on the Rust side).

poetry run pytest -q     70 passed
poetry run mypy          clean
poetry run ruff check    clean

tests/sinks/test_wealthfolio.py

@@ -218,14 +218,24 @@ async def test_import_dry_run_then_real(tmp_path: Path) -> None:
     async def handler(req: httpx.Request) -> httpx.Response:
         calls.append(req.url.path)
         if req.url.path == "/api/v1/activities/import/check":
-            return httpx.Response(200, json={"ok": True, "rows": 1})
+            # /import/check hydrates and returns a list of ActivityImport.
+            return httpx.Response(200, json=[
+                {
+                    "symbol": "VUAG",
+                    "isValid": True,
+                    "errors": None,
+                    "assetId": "enriched-asset-uuid",
+                    "exchangeMic": "XLON",
+                },
+            ])
         if req.url.path == "/api/v1/activities/import":
             return httpx.Response(
                 200,
-                json=[{
-                    "id": "wf-1",
-                    "external_id": "t212:1"
-                }],
+                json={
+                    "activities": [
+                        {"id": "wf-1", "external_id": "t212:1"},
+                    ],
+                },
             )
         return httpx.Response(500)
 

tests/test_pipeline.py

@@ -83,17 +83,21 @@ async def test_pipeline_skips_dedup_then_imports_new(tmp_path: Path) -> None:
                 }],
             )
         if req.url.path == "/api/v1/activities/import/check":
-            return httpx.Response(200, json={"ok": True})
+            body = json.loads(req.content)
+            # Echo each activity back marked valid (mimic Wealthfolio's
+            # hydrate step).
+            return httpx.Response(200, json=[
+                {**a, "isValid": True, "errors": None} for a in body["activities"]
+            ])
         if req.url.path == "/api/v1/activities/import":
             body = req.content.decode()
             posted_batches.append(body)
-            # Echo back external_ids so dedup.record gets the WF activity id.
             return httpx.Response(
                 200,
-                json=[{
-                    "id": f"wf-{i}",
-                    "external_id": ext
-                } for i, ext in enumerate(["a", "b", "c"])],
+                json={"activities": [
+                    {"id": f"wf-{i}", "external_id": ext}
+                    for i, ext in enumerate(["a", "b", "c"])
+                ]},
             )
         return httpx.Response(500)