feat(devices): icon picker (Type sets + Brand search)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

public/views/icon_picker.js

@@ -0,0 +1,57 @@
+// public/views/icon_picker.js — inline picker with Type + Brand tabs.
+import { el, mount, clear } from '../dom.js';
+import { api } from '../api.js';
+import { resolveIcon } from './icon_util.js';
+
+// onPick(ref) called with 'set:<set>:<name>' or 'brand:<slug>'. Returns an element.
+export function iconPicker(currentRef, onPick) {
+  const box = el('div', { class: 'icon-picker' });
+  const tabs = el('div', { class: 'ip-tabs' });
+  const body = el('div', { class: 'ip-body' });
+  const typeTab = el('button', { class: 'ip-tab active' }, 'Type');
+  const brandTab = el('button', { class: 'ip-tab' }, 'Brand');
+  typeTab.onclick = () => { typeTab.classList.add('active'); brandTab.classList.remove('active'); showType(); };
+  brandTab.onclick = () => { brandTab.classList.add('active'); typeTab.classList.remove('active'); showBrand(); };
+
+  async function showType() {
+    clear(body);
+    body.append(el('div', { class: 'muted' }, 'Loading…'));
+    let list = [];
+    try { list = await api.get('/api/icon-sets'); } catch { /* ignore */ }
+    clear(body);
+    for (const s of list) {
+      const grid = el('div', { class: 'ip-grid' }, s.icons.map(file => {
+        const name = file.replace(/\.[a-z]+$/, '');
+        const ref = `set:${s.set}:${name}`;
+        const b = el('button', { class: 'ip-icon', title: name },
+          el('img', { src: `/api/icon-sets/${s.set}/${file}` }));
+        b.onclick = () => onPick(ref);
+        return b;
+      }));
+      body.append(el('div', { class: 'ip-set' },
+        el('div', { class: 'ip-set-hd' }, s.set + (s.readonly ? '' : ' ·')),
+        grid));
+    }
+  }
+
+  function showBrand() {
+    clear(body);
+    const inp = el('input', { class: 'dv-edit-name', placeholder: 'brand slug e.g. apple, google-nest' });
+    const prev = el('div', { class: 'ip-grid' });
+    inp.oninput = () => {
+      const slug = inp.value.trim().toLowerCase().replace(/[^a-z0-9-]/g, '');
+      clear(prev);
+      if (!slug) return;
+      const b = el('button', { class: 'ip-icon' },
+        el('img', { src: `/api/icons/${slug}.png` }));
+      b.onclick = () => onPick(`brand:${slug}`);
+      prev.append(b);
+    };
+    body.append(inp, prev);
+  }
+
+  mount(tabs, typeTab, brandTab);
+  mount(box, tabs, body);
+  showType();
+  return box;
+}