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/shared/src/logger/index.ts

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

packages/shared/src/logger/providers/console.ts

@@ -0,0 +1,8 @@
+import type { Logger } from "../types";
+
+export const logger: Logger = {
+  info: console.info,
+  error: console.error,
+  warn: console.warn,
+  debug: console.debug,
+};

packages/shared/src/logger/providers/pino.ts

@@ -0,0 +1,15 @@
+/* eslint-disable no-restricted-properties */
+import pino from "pino";
+
+import type { Logger } from "../types";
+
+export const logger: Logger = pino({
+  browser: {
+    asObject: true,
+  },
+  level: "debug",
+  base: {
+    env: process.env.NODE_ENV,
+  },
+  errorKey: "error",
+});

packages/shared/src/logger/types.ts

@@ -0,0 +1,12 @@
+interface LogFn {
+  <T extends object>(obj: T, msg?: string, ...args: unknown[]): void;
+  (obj: unknown, msg?: string, ...args: unknown[]): void;
+  (msg: string, ...args: unknown[]): void;
+}
+
+export interface Logger {
+  info: LogFn;
+  error: LogFn;
+  warn: LogFn;
+  debug: LogFn;
+}