Phase 0: fix typecheck, format, build; remove stray emit; pin port via env

packages/ui/package.json

@@ -4,10 +4,10 @@
   "private": true,
   "description": "Shared React components for hub + live-map",
   "type": "module",
-  "main": "./src/index.ts",
-  "types": "./src/index.ts",
+  "main": "./src/index.tsx",
+  "types": "./src/index.tsx",
   "exports": {
-    ".": "./src/index.ts"
+    ".": "./src/index.tsx"
   },
   "scripts": {
     "typecheck": "tsc --noEmit",

packages/ui/src/index.tsx

@@ -6,7 +6,13 @@
 
 import { type ReactNode } from 'react';
 
-export function Pill({ children, tone = 'neutral' }: { children: ReactNode; tone?: 'neutral' | 'success' | 'warn' | 'danger' }) {
+export function Pill({
+  children,
+  tone = 'neutral',
+}: {
+  children: ReactNode;
+  tone?: 'neutral' | 'success' | 'warn' | 'danger';
+}) {
   const colorMap = {
     neutral: 'var(--pill-neutral, #ddd)',
     success: 'var(--pill-success, #2c5)',