feat: postgres reverse geocoding (#5301)

* feat: add system metadata repository for storing key values for internal usage

* feat: add database entities for geodata

* feat: move reverse geocoding from local-reverse-geocoder to postgresql

* infra: disable synchronization for geodata_places table until typeorm supports earth column

* feat: remove cities override config as we will default all instances to cities500 now

* test: e2e tests don't clear geodata tables on reset

server/src/infra/entities/system-metadata.entity.ts

@@ -0,0 +1,18 @@
+import { Column, Entity, PrimaryColumn } from 'typeorm';
+
+@Entity('system_metadata')
+export class SystemMetadataEntity {
+  @PrimaryColumn()
+  key!: string;
+
+  @Column({ type: 'jsonb', default: '{}', transformer: { to: JSON.stringify, from: JSON.parse } })
+  value!: { [key: string]: unknown };
+}
+
+export enum SystemMetadataKey {
+  REVERSE_GEOCODING_STATE = 'reverse-geocoding-state',
+}
+
+export interface SystemMetadata extends Record<SystemMetadataKey, { [key: string]: unknown }> {
+  [SystemMetadataKey.REVERSE_GEOCODING_STATE]: { lastUpdate?: string; lastImportFileName?: string };
+}