feat(core): add SSH data access proxy CLI and core managers

ts/classes.hostmanager.ts

@@ -0,0 +1,43 @@
+import { SshConfig } from './classes.sshconfig.js';
+import { SshConfigWriter } from './classes.sshconfigwriter.js';
+import type {
+  IHostDefinition,
+  IHostUpdatePreview,
+  IHostWriteResult,
+  ISshConfigHost,
+  ISshConfigOptions,
+} from './types.js';
+
+export class HostManager {
+  private sshConfig: SshConfig;
+  private sshConfigWriter: SshConfigWriter;
+
+  constructor(options: ISshConfigOptions = {}) {
+    this.sshConfig = new SshConfig(options);
+    this.sshConfigWriter = new SshConfigWriter(options);
+  }
+
+  public async listHosts(): Promise<ISshConfigHost[]> {
+    const result = await this.sshConfig.read();
+    return this.sshConfig.getDisplayHosts(result);
+  }
+
+  public async getHost(alias: string): Promise<ISshConfigHost | undefined> {
+    return this.sshConfig.getHost(alias);
+  }
+
+  public async addHost(hostDefinition: IHostDefinition): Promise<IHostWriteResult> {
+    return this.sshConfigWriter.addOrReplaceManagedHost(hostDefinition);
+  }
+
+  public async previewEditHost(
+    alias: string,
+    changes: Partial<IHostDefinition>
+  ): Promise<IHostUpdatePreview> {
+    return this.sshConfigWriter.previewUpdateHost(alias, changes);
+  }
+
+  public async editHost(alias: string, changes: Partial<IHostDefinition>): Promise<IHostWriteResult> {
+    return this.sshConfigWriter.updateHost(alias, changes);
+  }
+}