addrkit: deterministic address resolution service (Go)

- domain: address normalization/parsing, matching with explicit statuses
- adapters: SQLite registry store, ArcGIS outages client, optional LLM rewriter, HTTP API
- seed pipeline with duplicate handling and unparsed reporting
- CLI (seed/verify/resolve), systemd unit, OpenAPI contract, tests

internal/adapters/registrystore/sqlite_test.go

@@ -0,0 +1,59 @@
+package registrystore
+
+import (
+	"path/filepath"
+	"testing"
+
+	"git.totmin.ru/en2zmax/addrkit/internal/domain/address"
+)
+
+func TestSaveLoadRoundTrip(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "registry.db")
+
+	addr := "Станционная улица 1/1"
+	p := address.Parse(addr)
+	entries := []address.Entry{{
+		ID: "a1", Address: addr, District: "Ленинский",
+		Ordinal: p.Ordinal, NameKey: p.NameKey, StreetType: p.StreetType, StreetKey: p.StreetKey,
+		House: p.House, HouseFrac: p.HouseFrac,
+	}}
+
+	if err := Save(path, "2026-10-09", entries); err != nil {
+		t.Fatalf("Save: %v", err)
+	}
+
+	version, got, err := Load(path)
+	if err != nil {
+		t.Fatalf("Load: %v", err)
+	}
+	if version != "2026-10-09" {
+		t.Errorf("version = %q", version)
+	}
+	if len(got) != 1 {
+		t.Fatalf("entries = %d, want 1", len(got))
+	}
+	if got[0].Address != addr || got[0].District != "Ленинский" || got[0].StreetKey != p.StreetKey {
+		t.Errorf("round-tripped entry mismatch: %+v", got[0])
+	}
+}
+
+// TestSaveIsAtomicOverwrite verifies that re-seeding replaces the previous data
+// rather than merging with it.
+func TestSaveIsAtomicOverwrite(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "registry.db")
+
+	if err := Save(path, "v1", []address.Entry{{ID: "x", Address: "Первая улица 1"}}); err != nil {
+		t.Fatalf("Save v1: %v", err)
+	}
+	if err := Save(path, "v2", []address.Entry{{ID: "y", Address: "Вторая улица 2"}}); err != nil {
+		t.Fatalf("Save v2: %v", err)
+	}
+
+	version, got, err := Load(path)
+	if err != nil {
+		t.Fatalf("Load: %v", err)
+	}
+	if version != "v2" || len(got) != 1 || got[0].Address != "Вторая улица 2" {
+		t.Fatalf("unexpected state after overwrite: version=%q entries=%+v", version, got)
+	}
+}