Add: Web UI (React 19 + Vite + shadcn/ui) + FastAPI REST layer

Adds a self-contained web interface that wraps the MCP tools so end users
don't need to issue MCP commands. Single Docker container serves:

  /              → React SPA (RTL Hebrew, Heebo font, shadcn/ui components)
  /api/*         → FastAPI REST endpoints used by the SPA
  /api/docs      → OpenAPI / Swagger
  /mcp           → existing FastMCP streamable-http endpoint
  /health        → liveness probe

REST endpoints (in nadlan_mcp/web_app.py):
  GET  /api/search/address?q=...  — autocomplete + best-effort gush/חלקה
                                    via Govmap PARCEL_ALL layer
  POST /api/search/deals          — Govmap deals around an address
  POST /api/search/appraisals     — Decisive-appraiser search (gov.il)
  GET  /api/appraisals/pdf?url=.. — Stream PDFs through this server,
                                    carrying the upstream x-client-id
                                    header (a normal browser fetch fails)

UI flow:
  - Address search → resolves gush/חלקה → shows BOTH deals (Govmap) AND
    appraiser decisions (gov.il) for the same parcel side-by-side in tabs.
  - Block+plot search → goes straight to appraisals.
  - Appraiser-name search → all decisions by that appraiser.

Stack chosen for RTL-first usability and longevity: React 19, Vite 6,
TypeScript, Tailwind, shadcn/ui (Radix primitives), TanStack Query,
Lucide icons. ~295KB gzipped JS, no SSR overhead.

Multi-stage Dockerfile: Node 22 builds web/ in stage 1, Python 3.13
runtime serves the dist + the FastAPI app in stage 2.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

web/src/components/ui/input.tsx

@@ -0,0 +1,21 @@
+import * as React from "react";
+import { cn } from "@/lib/utils";
+
+const Input = React.forwardRef<HTMLInputElement, React.InputHTMLAttributes<HTMLInputElement>>(
+  ({ className, type, ...props }, ref) => {
+    return (
+      <input
+        type={type}
+        className={cn(
+          "flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background file:border-0 file:bg-transparent file:text-sm file:font-medium placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50",
+          className
+        )}
+        ref={ref}
+        {...props}
+      />
+    );
+  }
+);
+Input.displayName = "Input";
+
+export { Input };