refactor: remove legacy spaces and migrate lists to standalone resources with direct sharing

internal/storage/sqlite_test.go

@@ -48,12 +48,8 @@ func TestStoreLifecycle(t *testing.T) {
 		t.Fatalf("expected converted document, got status=%s type=%s ref=%s", triaged.Status, triaged.ConvertedType, triaged.ConvertedRefID)
 	}
 
-	// 3. Test Shared Space & Shopping List
-	sp, err := store.CreateSpace(user.ID, "Test WG", "🍕", "Test Space", false)
-	if err != nil {
-		t.Fatalf("CreateSpace failed: %v", err)
-	}
-	lst, err := store.CreateList(sp.ID, "REWE Einkauf", "🛒", "shopping")
+	// 3. Test Standalone Shopping List & Sharing
+	lst, err := store.CreateList(user.ID, "REWE Einkauf", "🛒", "shopping")
 	if err != nil {
 		t.Fatalf("CreateList failed: %v", err)
 	}
@@ -66,26 +62,26 @@ func TestStoreLifecycle(t *testing.T) {
 		t.Fatalf("ToggleListItem failed: %v", err)
 	}
 
-	// Test AddSpaceMember & RemoveSpaceMember
+	// Test AddListShare & RemoveListShare
 	u2, err := store.CreateUser("collab_space@example.com", "hash", "Collab User", "member")
 	if err != nil {
 		t.Fatalf("CreateUser u2 failed: %v", err)
 	}
-	member, err := store.AddSpaceMember(user.ID, sp.ID, u2.ID, "editor")
-	if err != nil || member.UserID != u2.ID {
-		t.Fatalf("AddSpaceMember failed: %v", err)
+	share, err := store.AddListShare(user.ID, lst.ID, "user", u2.ID, "editor")
+	if err != nil || share.TargetID != u2.ID {
+		t.Fatalf("AddListShare failed: %v", err)
 	}
-	members, err := store.GetSpaceMembers(sp.ID)
-	if err != nil || len(members) != 2 {
-		t.Fatalf("expected 2 members, got %d", len(members))
+	shares, err := store.GetListShares(lst.ID)
+	if err != nil || len(shares) != 1 {
+		t.Fatalf("expected 1 share, got %d", len(shares))
 	}
-	err = store.RemoveSpaceMember(user.ID, sp.ID, u2.ID)
+	err = store.RemoveListShare(user.ID, lst.ID, share.ID)
 	if err != nil {
-		t.Fatalf("RemoveSpaceMember failed: %v", err)
+		t.Fatalf("RemoveListShare failed: %v", err)
 	}
-	membersAfter, _ := store.GetSpaceMembers(sp.ID)
-	if len(membersAfter) != 1 {
-		t.Fatalf("expected 1 member after remove, got %d", len(membersAfter))
+	sharesAfter, _ := store.GetListShares(lst.ID)
+	if len(sharesAfter) != 0 {
+		t.Fatalf("expected 0 shares after remove, got %d", len(sharesAfter))
 	}
 
 	// 4. Test Webhook API Key generation & validation
@@ -99,7 +95,7 @@ func TestStoreLifecycle(t *testing.T) {
 	}
 
 	// 5. Test TaskLists CRUD
-	taskList, err := store.CreateTaskList(user.ID, sp.ID, "", "Haus & Garten", "🏡", "#10b981")
+	taskList, err := store.CreateTaskList(user.ID, "", "", "Haus & Garten", "🏡", "#10b981")
 	if err != nil || taskList.ID == "" {
 		t.Fatalf("CreateTaskList failed: %v", err)
 	}
@@ -160,8 +156,8 @@ func TestStoreLifecycle(t *testing.T) {
 	}
 
 	// Share with user2 as "read"
-	share, err := store.CreateDocShare(user.ID, newDoc.ID, user2.ID, "read")
-	if err != nil || share.Permission != "read" {
+	docShare, err := store.CreateDocShare(user.ID, newDoc.ID, user2.ID, "read")
+	if err != nil || docShare.Permission != "read" {
 		t.Fatalf("CreateDocShare failed: %v", err)
 	}