refactor!: make addrkit a multi-city address normalizer

- remove the events/outages module, ArcGIS adapter, portal config and event statuses
- add a configurable city dictionary/parser and make City part of StreetKey
- seed: read city/city_name, namespace IDs by city, keep structures distinct
- fix reliability: schema v2 with fail-closed load, deterministic ordering,
  input limits, config validation, atomic DB publish, LLM response caps
- add read-only shadow mode comparing the old ES path with addrkit
- breaking: registry.db must be re-seeded; config has no portal section

internal/config/config_test.go

@@ -4,6 +4,8 @@ import (
 	"os"
 	"path/filepath"
 	"testing"
+
+	"git.totmin.ru/en2zmax/addrkit/internal/domain/match"
 )
 
 func writeFile(t *testing.T, dir, name, content string) string {
@@ -19,7 +21,6 @@ func baseConfig(promptFields string) string {
 	return `{
       "addr": ":6171",
       "data_path": "registry.db",
-      "portal": { "url": "http://portal" },
       "llm": { "enabled": true, "url": "http://llm"` + promptFields + ` }
     }`
 }
@@ -60,11 +61,90 @@ func TestLoadMissingSystemPromptFileFailsClosed(t *testing.T) {
 	}
 }
 
-func TestPortalURLOptional(t *testing.T) {
+func TestDefaultsMatchMatcher(t *testing.T) {
 	dir := t.TempDir()
-	// No portal.url: the events module is disabled, the core still loads.
 	path := writeFile(t, dir, "config.json", `{"addr": ":6171", "data_path": "x.db"}`)
-	if _, err := Load(path); err != nil {
-		t.Fatalf("portal.url must be optional: %v", err)
+
+	cfg, err := Load(path)
+	if err != nil {
+		t.Fatalf("Load: %v", err)
+	}
+	want := match.DefaultOptions()
+	if cfg.Resolve.FuzzyThreshold != want.FuzzyThreshold ||
+		cfg.Resolve.AmbiguityMargin != want.AmbiguityMargin ||
+		cfg.Resolve.MaxCandidates != want.MaxCandidates {
+		t.Fatalf("config defaults %+v do not match matcher defaults %+v", cfg.Resolve, want)
+	}
+}
+
+func TestRejectsBadResolveRanges(t *testing.T) {
+	dir := t.TempDir()
+	cases := map[string]string{
+		"threshold":  `{"addr":":6171","data_path":"x.db","resolve":{"fuzzy_threshold":0}}`,
+		"margin":     `{"addr":":6171","data_path":"x.db","resolve":{"ambiguity_margin":2}}`,
+		"candidates": `{"addr":":6171","data_path":"x.db","resolve":{"max_candidates":0}}`,
+	}
+	for name, body := range cases {
+		path := writeFile(t, dir, name+".json", body)
+		if _, err := Load(path); err == nil {
+			t.Errorf("%s: expected validation error", name)
+		}
+	}
+}
+
+func TestCitiesAndDefaultCity(t *testing.T) {
+	dir := t.TempDir()
+	path := writeFile(t, dir, "config.json", `{
+      "addr": ":6171", "data_path": "x.db",
+      "cities": [
+        {"name": "Новосибирск", "aliases": ["нск", "новосибирская область"]},
+        {"name": "Бердск"}
+      ],
+      "default_city": "Новосибирск"
+    }`)
+	cfg, err := Load(path)
+	if err != nil {
+		t.Fatalf("Load: %v", err)
+	}
+	if len(cfg.Cities) != 2 || cfg.DefaultCity != "Новосибирск" {
+		t.Fatalf("cities = %+v, default = %q", cfg.Cities, cfg.DefaultCity)
+	}
+}
+
+func TestRejectsUnknownDefaultCity(t *testing.T) {
+	dir := t.TempDir()
+	path := writeFile(t, dir, "config.json", `{
+      "addr": ":6171", "data_path": "x.db",
+      "cities": [{"name": "Бердск"}],
+      "default_city": "Новосибирск"
+    }`)
+	if _, err := Load(path); err == nil {
+		t.Fatal("expected error for default_city absent from cities")
+	}
+}
+
+func TestLoadCitiesFile(t *testing.T) {
+	dir := t.TempDir()
+	path := writeFile(t, dir, "cities.json", `[
+      {"name": "Новосибирск", "aliases": ["нск"]},
+      {"name": "Бердск"}
+    ]`)
+	cities, err := LoadCitiesFile(path)
+	if err != nil {
+		t.Fatalf("LoadCitiesFile: %v", err)
+	}
+	if len(cities) != 2 || cities[0].Name != "Новосибирск" {
+		t.Fatalf("cities = %+v", cities)
+	}
+}
+
+func TestRejectsUnknownConfigFields(t *testing.T) {
+	dir := t.TempDir()
+	// "portal" was removed with the events module; silently ignoring it would
+	// hide a stale deployment config.
+	path := writeFile(t, dir, "config.json",
+		`{"addr":":6171","data_path":"x.db","portal":{"url":"http://example"}}`)
+	if _, err := Load(path); err == nil {
+		t.Fatal("expected error for unknown config field")
 	}
 }