feat: turbostarter boilerplate

Production-ready Next.js boilerplate with:
- Runtime env validation (fail-fast on missing vars)
- Feature-gated config (S3, Stripe, email, OAuth)
- Docker + Coolify deployment pipeline
- PostgreSQL + pgvector, MinIO S3, Better Auth
- TypeScript strict mode (no ignoreBuildErrors)
- i18n (en/es), AI modules, billing, monitoring

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/monitoring/shared/src/index.ts

@@ -0,0 +1 @@
+export * from "./types";

packages/monitoring/shared/src/types.ts

@@ -0,0 +1,21 @@
+export interface MonitoringProviderStrategy {
+  /**
+   * Capture an exception
+   * @param error - The error to capture
+   */
+  captureException<Extra extends Record<string, unknown>>(
+    error: unknown,
+    extra?: Extra,
+  ): void;
+
+  /**
+   * Identify a user in the monitoring service - used for tracking user actions
+   * @param info
+   */
+  identify<Info extends { id: string }>(info: Info): unknown;
+
+  /**
+   * Initialize the monitoring service
+   */
+  initialize(): void | Promise<void>;
+}