fix: support qdrant-only vector maintenance

harness/tests/test_solved_search_cli.py

@@ -7,7 +7,7 @@ puro (`[]` in modalita' --json) ed exit 0, cosi' il modello prosegue senza
 exemplar. Il finalize-hook gestisce gia' lo stesso scenario in modo analogo.
 """
 import json
-from datetime import datetime
+from datetime import UTC, datetime
 
 from typer.testing import CliRunner
 
@@ -24,7 +24,7 @@ def _cfg(tmp_path):
         "database: {database: d, schema: s, user: u, password: p, transport: direct}\n"
         f"paths: {{artifacts: {tmp_path/'a'}, indexes: {tmp_path/'i'}, sessions: {tmp_path/'se'}}}\n"
         "vector_db: {database: v, schema: vectors, user: u, password: p, transport: direct}\n"
-        "embeddings: {base_url: 'http://localhost:11434', model: nomic-embed-text, dim: 8}\n"
+        "embeddings: {base_url: 'http://localhost:11434', model: qwen3-embedding:0.6b, dim: 1024}\n"
     )
     return cfg
 
@@ -103,15 +103,15 @@ def test_solved_search_json_maps_hit_metadata(tmp_path, monkeypatch):
 
 def test_memory_search_excludes_legacy_table_records(tmp_path, monkeypatch):
     records = [
-        MemoryRecord(
-            id="mem-0001", ts=datetime(2026, 1, 1), session_id="s1",
-            decision_seq=1, type="table_promoted", subject="fact_pazienti",
-        ),
-        MemoryRecord(
-            id="mem-0002", ts=datetime(2026, 1, 1), session_id="s1",
-            decision_seq=2, type="concept_clarified", subject="paziente attivo",
-            detail="flag_attivo = TRUE",
-        ),
+            MemoryRecord(
+                id="mem-0001", ts=datetime(2026, 1, 1, tzinfo=UTC), session_id="s1",
+                decision_seq=1, type="table_promoted", subject="fact_pazienti",
+            ),
+            MemoryRecord(
+                id="mem-0002", ts=datetime(2026, 1, 1, tzinfo=UTC), session_id="s1",
+                decision_seq=2, type="concept_clarified", subject="paziente attivo",
+                detail="flag_attivo = TRUE",
+            ),
     ]
     cfg = _cfg(tmp_path)
     save_registry(records, tmp_path / "a" / "memory" / "registry.jsonl")