Add Milestones 1 & 2: full-stack POS foundation with admin UI

- Node/Express/TypeScript API under /api/v1 with JWT auth (login, refresh, logout, /me)
- Prisma schema: vendors, users, roles, products, categories, taxes, transactions
- SQLite for local dev; Postgres via docker-compose for production
- Full CRUD routes for vendors, users, categories, taxes, products with Zod validation and RBAC
- Paginated list endpoints scoped per vendor; refresh token rotation
- React/TypeScript admin SPA (Vite): login, protected routing, sidebar layout
- Pages: Dashboard, Catalog (tabbed Products/Categories/Taxes), Users, Vendor Settings
- Shared UI: Table, Modal, FormField, Btn, PageHeader components
- Multi-stage Dockerfile; docker-compose with Postgres healthcheck
- Seed script with demo vendor and owner account
- INSTRUCTIONS.md, ROADMAP.md, .claude/launch.json for dev server config

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/node_modules/zod/v4/classic/errors.d.ts

@@ -0,0 +1,30 @@
+import * as core from "../core/index.js";
+import { $ZodError } from "../core/index.js";
+/** @deprecated Use `z.core.$ZodIssue` from `@zod/core` instead, especially if you are building a library on top of Zod. */
+export type ZodIssue = core.$ZodIssue;
+/** An Error-like class used to store Zod validation issues.  */
+export interface ZodError<T = unknown> extends $ZodError<T> {
+    /** @deprecated Use the `z.treeifyError(err)` function instead. */
+    format(): core.$ZodFormattedError<T>;
+    format<U>(mapper: (issue: core.$ZodIssue) => U): core.$ZodFormattedError<T, U>;
+    /** @deprecated Use the `z.treeifyError(err)` function instead. */
+    flatten(): core.$ZodFlattenedError<T>;
+    flatten<U>(mapper: (issue: core.$ZodIssue) => U): core.$ZodFlattenedError<T, U>;
+    /** @deprecated Push directly to `.issues` instead. */
+    addIssue(issue: core.$ZodIssue): void;
+    /** @deprecated Push directly to `.issues` instead. */
+    addIssues(issues: core.$ZodIssue[]): void;
+    /** @deprecated Check `err.issues.length === 0` instead. */
+    isEmpty: boolean;
+}
+export declare const ZodError: core.$constructor<ZodError>;
+export declare const ZodRealError: core.$constructor<ZodError>;
+export type { 
+/** @deprecated Use `z.core.$ZodFlattenedError` instead. */
+$ZodFlattenedError as ZodFlattenedError, 
+/** @deprecated Use `z.core.$ZodFormattedError` instead. */
+$ZodFormattedError as ZodFormattedError, 
+/** @deprecated Use `z.core.$ZodErrorMap` instead. */
+$ZodErrorMap as ZodErrorMap, } from "../core/index.js";
+/** @deprecated Use `z.core.$ZodRawIssue` instead. */
+export type IssueData = core.$ZodRawIssue;