perf(v2): 8 optimizations — 24% smaller bundle, fewer re-renders

1. React.memo on WindowRenderer — prevents re-renders when parent
   state changes but no windows are affected

2. Coordinate display via direct DOM ref — no React state updates
   on mouse move (was triggering re-renders on every pixel)

3. useDeferredValue for sidebar vitals + player list — React
   prioritizes map interactions over stat text updates

4. Chat messages in ref — stores in useRef instead of useState,
   only bumps a version counter for re-render. Eliminates a
   new Map() allocation on every chat message.

5. Lazy-load 8 window components — InventoryWindow, CharacterWindow,
   RadarWindow, CombatStatsWindow, IssuesWindow, VitalSharingWindow,
   StatsWindow, CombatPickerWindow all loaded on first open.
   Main bundle dropped from 278KB to 211KB (24% reduction).

6. Preload critical assets — dereth.png, backpack icon, dungeon_tiles.json
   via <link rel="preload"> in index.html for instant map render.

7. Bundle splitting — React runtime extracted to separate 12KB chunk
   (cached independently). Window components split into 8 chunks.
   Total: 13 chunks vs previous 2.

8. Service worker — caches map images, icon sprites, and dungeon tiles.
   Icon images cached on first fetch. Repeat page loads serve from
   cache instantly. Auto-cleans old cache versions.

Net result:
- Initial load: 211KB main + 17KB CSS (was 278KB + 17KB)
- React cached separately: 12KB
- Windows load on demand: 1-15KB each
- Dashboard with Recharts: 425KB (unchanged, still lazy)
- Map images/icons: cached by service worker after first load

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

static/v2/assets/CombatPickerWindow-BOlAFaCG.js

@@ -0,0 +1 @@
+import{u as c,j as r,D as d}from"./index-BfJ04YaG.js";import"./react-DlyoauG8.js";const p=({id:n,zIndex:i,characters:a})=>{const{openWindow:s}=c(),e=Array.from(a.keys()).sort();return r.jsx(d,{id:n,title:"Combat Stats — Select Character",zIndex:i,width:300,height:400,children:r.jsx("div",{style:{flex:1,overflowY:"auto",padding:6},children:e.length===0?r.jsx("div",{style:{padding:12,color:"#666",textAlign:"center",fontSize:"0.8rem"},children:"No characters online"}):e.map(o=>r.jsx("div",{style:{padding:"5px 8px",cursor:"pointer",borderBottom:"1px solid #222",color:"#ccc",fontSize:"0.82rem"},onMouseEnter:t=>t.currentTarget.style.background="#2a2a2a",onMouseLeave:t=>t.currentTarget.style.background="",onClick:()=>s(`combat-${o}`,`Combat: ${o}`,o),children:o},o))})})};export{p as CombatPickerWindow};

static/v2/assets/StatsWindow-BT7jJ8yH.js

@@ -0,0 +1 @@
+import{r as o,j as t,D as d}from"./index-BfJ04YaG.js";import"./react-DlyoauG8.js";const c=[{title:"Kills per Hour",id:1},{title:"Memory (MB)",id:2},{title:"CPU (%)",id:3},{title:"Mem Handles",id:4}],m=[{label:"1H",value:"now-1h"},{label:"6H",value:"now-6h"},{label:"24H",value:"now-24h"},{label:"7D",value:"now-7d"}],v=({id:s,charName:a,zIndex:i})=>{const[l,r]=o.useState("now-24h"),n=e=>`/grafana/d-solo/dereth-tracker/dereth-tracker-dashboard?panelId=${e}&var-character=${encodeURIComponent(a)}&from=${l}&to=now&theme=light`;return t.jsxs(d,{id:s,title:`Stats: ${a}`,zIndex:i,width:750,height:480,children:[t.jsx("div",{className:"ml-stats-controls",children:m.map(e=>t.jsx("button",{className:`ml-stats-range-btn ${l===e.value?"active":""}`,onClick:()=>r(e.value),children:e.label},e.value))}),t.jsx("div",{className:"ml-stats-grid",children:c.map(e=>t.jsx("div",{className:"ml-stats-panel",children:t.jsx("iframe",{src:n(e.id),width:"100%",height:"100%",frameBorder:"0",title:e.title})},e.id))})]})};export{v as StatsWindow};

static/v2/assets/VitalSharingWindow-CwE3JOVC.js

@@ -0,0 +1 @@
+import{r as n,j as t,D as x,a as m}from"./index-BfJ04YaG.js";import"./react-DlyoauG8.js";const v=({id:o,zIndex:c})=>{const[a,d]=n.useState([]);n.useEffect(()=>{const e=async()=>{try{const s=await m("/vital-sharing/peers");d(s.peers??[])}catch{}};e();const l=setInterval(e,5e3);return()=>clearInterval(l)},[]);const h=(e,l)=>l>0?Math.min(100,e/l*100):0;return t.jsx(x,{id:o,title:"Vital Sharing Network",zIndex:c,width:520,height:450,children:t.jsx("div",{style:{flex:1,overflowY:"auto",padding:6,fontSize:"0.75rem"},children:a.length===0?t.jsx("div",{style:{padding:16,color:"#666",textAlign:"center"},children:"No vital-sharing peers connected"}):a.map(e=>{var l,s,r;return t.jsxs("div",{style:{padding:"6px 8px",marginBottom:4,background:"#1f1f1f",borderRadius:3,border:"1px solid #333"},children:[t.jsxs("div",{style:{display:"flex",alignItems:"center",gap:6,marginBottom:3},children:[t.jsx("span",{style:{color:e.plugin_connected?"#4c4":"#a33",fontSize:"0.8rem"},children:"●"}),t.jsx("strong",{style:{flex:1},children:e.character_name}),e.subscribed&&t.jsx("span",{style:{color:"#6bf",fontSize:"0.65rem"},children:"[subscribed]"})]}),t.jsxs("div",{style:{color:"#666",fontSize:"0.68rem",marginBottom:3},children:["tags: ",((l=e.tags)==null?void 0:l.join(", "))||"none"]}),e.vitals&&e.vitals.max_health>0&&t.jsx("div",{style:{display:"flex",flexDirection:"column",gap:2},children:[{label:"HP",cur:e.vitals.current_health,max:e.vitals.max_health,bg:"#330000",fill:"#c44"},{label:"STA",cur:e.vitals.current_stamina,max:e.vitals.max_stamina,bg:"#331a00",fill:"#ca0"},{label:"MANA",cur:e.vitals.current_mana,max:e.vitals.max_mana,bg:"#001433",fill:"#48f"}].map(i=>t.jsxs("div",{style:{display:"flex",alignItems:"center",gap:4},children:[t.jsx("span",{style:{width:32,color:"#888",fontSize:"0.65rem"},children:i.label}),t.jsx("div",{style:{flex:1,height:6,background:i.bg,borderRadius:3,overflow:"hidden"},children:t.jsx("div",{style:{width:`${h(i.cur,i.max)}%`,height:"100%",background:i.fill,borderRadius:3}})}),t.jsxs("span",{style:{width:60,textAlign:"right",fontSize:"0.65rem",color:"#888"},children:[i.cur,"/",i.max]})]},i.label))}),e.position&&t.jsxs("div",{style:{color:"#555",fontSize:"0.65rem",marginTop:2},children:[(s=e.position.ns)==null?void 0:s.toFixed(1),"N, ",(r=e.position.ew)==null?void 0:r.toFixed(1),"E"]})]},e.character_name)})})})};export{v as VitalSharingWindow};

static/v2/index.html

@@ -5,7 +5,11 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Mosswart Overlord v2</title>
     <link rel="icon" type="image/png" href="/icons/7735.png" />
-    <script type="module" crossorigin src="/v2/assets/index-DaZ3M_iW.js"></script>
+    <link rel="preload" as="image" href="/dereth.png" />
+    <link rel="preload" as="image" href="/icons/0600127E.png" />
+    <link rel="preload" as="fetch" href="/dungeon_tiles.json" crossorigin="anonymous" />
+    <script type="module" crossorigin src="/v2/assets/index-BfJ04YaG.js"></script>
+    <link rel="modulepreload" crossorigin href="/v2/assets/react-DlyoauG8.js">
     <link rel="stylesheet" crossorigin href="/v2/assets/index-CyLyPOVJ.css">
   </head>
   <body>

static/v2/sw.js

@@ -0,0 +1,72 @@
+// Service worker for MosswartOverlord v2 — caches static assets for instant repeat loads
+const CACHE_NAME = 'mo-v2-cache-v1';
+const STATIC_ASSETS = [
+  '/dereth.png',
+  '/dereth_highres.png',
+  '/prismatic-taper-icon.png',
+  '/icons/0600127E.png',
+  '/icons/06000133.png',
+  '/icons/06001080.png',
+];
+
+self.addEventListener('install', (event) => {
+  event.waitUntil(
+    caches.open(CACHE_NAME).then(cache => cache.addAll(STATIC_ASSETS))
+  );
+  self.skipWaiting();
+});
+
+self.addEventListener('activate', (event) => {
+  event.waitUntil(
+    caches.keys().then(keys =>
+      Promise.all(keys.filter(k => k !== CACHE_NAME).map(k => caches.delete(k)))
+    )
+  );
+  self.clients.claim();
+});
+
+self.addEventListener('fetch', (event) => {
+  const url = new URL(event.request.url);
+
+  // Cache icon images on first fetch
+  if (url.pathname.startsWith('/icons/') && event.request.method === 'GET') {
+    event.respondWith(
+      caches.match(event.request).then(cached => {
+        if (cached) return cached;
+        return fetch(event.request).then(response => {
+          if (response.ok) {
+            const clone = response.clone();
+            caches.open(CACHE_NAME).then(cache => cache.put(event.request, clone));
+          }
+          return response;
+        });
+      })
+    );
+    return;
+  }
+
+  // Cache dungeon_tiles.json (large, rarely changes)
+  if (url.pathname === '/dungeon_tiles.json') {
+    event.respondWith(
+      caches.match(event.request).then(cached => {
+        if (cached) return cached;
+        return fetch(event.request).then(response => {
+          if (response.ok) {
+            const clone = response.clone();
+            caches.open(CACHE_NAME).then(cache => cache.put(event.request, clone));
+          }
+          return response;
+        });
+      })
+    );
+    return;
+  }
+
+  // Cache static assets (map images etc)
+  if (STATIC_ASSETS.some(a => url.pathname === a)) {
+    event.respondWith(
+      caches.match(event.request).then(cached => cached || fetch(event.request))
+    );
+    return;
+  }
+});