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/scripts/src/requirements.mjs

@@ -0,0 +1,61 @@
+import { execSync } from "child_process";
+
+// check requirements to run TurboStarter
+void checkRequirements();
+
+function checkRequirements() {
+  validateNodeInstalled();
+  validatePnpmInstalled();
+  validatePathNotOneDrive();
+}
+
+/**
+ * Validates that pnpm is installed.
+ * If pnpm is not installed, it exits the script with an error message.
+ */
+function validatePnpmInstalled() {
+  const currentPnpmVersion = execSync("pnpm --version").toString().trim();
+
+  if (!currentPnpmVersion) {
+    console.error(
+      `\x1b[31m%s\x1b[0m`,
+      `You are running TurboStarter from a directory that does not have pnpm installed. Please install pnpm and run "pnpm install" in your project directory.`,
+    );
+
+    process.exit(1);
+  }
+}
+
+/**
+ * Validates that Node is installed.
+ * If Node is not installed, it exits the script with an error message.
+ */
+function validateNodeInstalled() {
+  const currentNodeVersion = process.versions.node;
+
+  if (!currentNodeVersion) {
+    console.error(
+      `\x1b[31m%s\x1b[0m`,
+      `You are running TurboStarter from a device that does not have Node installed. Please install Node (https://nodejs.org/en/download/) and try again.`,
+    );
+
+    process.exit(1);
+  }
+}
+
+/**
+ * Checks if the current working directory is not OneDrive.
+ * If the current working directory is OneDrive, it exits the script with an error message.
+ */
+function validatePathNotOneDrive() {
+  const path = process.cwd();
+
+  if (path.includes("OneDrive")) {
+    console.error(
+      `\x1b[31m%s\x1b[0m`,
+      `You are running TurboStarter from OneDrive. Please move your project to a local folder.`,
+    );
+
+    process.exit(1);
+  }
+}