Extract groombook/api from monorepo with CI workflow

- Add source code from apps/api
- Add packages/db and packages/types workspace dependencies
- Add GitHub Actions CI workflow (lint, typecheck, test, docker)
- Generate pnpm-lock.yaml
- Add .gitignore

Co-Authored-By: Paperclip <noreply@paperclip.ing>

src/types/telnyx.d.ts

@@ -0,0 +1,19 @@
+declare module "telnyx" {
+  export interface MessageResult {
+    data: unknown;
+  }
+
+  export interface MessagesCreateParams {
+    from: string;
+    to: string;
+    body: string;
+    media_urls?: string[];
+  }
+
+  export class Telnyx {
+    constructor(apiKey: string);
+    messages: {
+      create(params: Record<string, string | string[]>): Promise<MessageResult>;
+    };
+  }
+}