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>

tooling/prettier/index.js

@@ -0,0 +1,29 @@
+/** @typedef {import("prettier").Config} PrettierConfig */
+/** @typedef {import("prettier-plugin-tailwindcss").PluginOptions} TailwindConfig */
+
+/** @type { PrettierConfig | TailwindConfig } */
+const config = {
+  singleQuote: false,
+  trailingComma: "all",
+  tabWidth: 2,
+  useTabs: false,
+  printWidth: 80,
+  plugins: ["prettier-plugin-tailwindcss"],
+  tailwindFunctions: ["cn", "cva"],
+  overrides: [
+    {
+      files: "*.json.hbs",
+      options: {
+        parser: "json",
+      },
+    },
+    {
+      files: "*.js.hbs",
+      options: {
+        parser: "babel",
+      },
+    },
+  ],
+};
+
+export default config;