feat(db): mesh data model — meshes, members, invites, audit log

- pgSchema "mesh" with 4 tables isolating the peer mesh domain
- Enums: visibility, transport, tier, role
- audit_log is metadata-only (E2E encryption enforced at broker/client)
- Cascade on mesh delete, soft-delete via archivedAt/revokedAt

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/monitoring/shared/src/index.ts

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

packages/monitoring/shared/src/types.ts

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+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>;
+}