feat: add ScriptFilterBar with category tabs and debounced search

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

frontend/src/components/scripts/ScriptFilterBar.tsx

@@ -0,0 +1,75 @@
+import { useEffect, useRef } from 'react'
+import { Search } from 'lucide-react'
+import { cn } from '@/lib/utils'
+import { useScriptGeneratorStore } from '@/store/scriptGeneratorStore'
+
+interface Props {
+  inputValue: string
+  setInputValue: (value: string) => void
+}
+
+export function ScriptFilterBar({ inputValue, setInputValue }: Props) {
+  const categories = useScriptGeneratorStore(s => s.categories)
+  const activeCategoryId = useScriptGeneratorStore(s => s.activeCategoryId)
+  const setCategory = useScriptGeneratorStore(s => s.setCategory)
+  const setSearch = useScriptGeneratorStore(s => s.setSearch)
+
+  // Debounce: 300ms after the input value settles, push to store
+  const debounceRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+  useEffect(() => {
+    if (debounceRef.current) clearTimeout(debounceRef.current)
+    debounceRef.current = setTimeout(() => {
+      setSearch(inputValue)
+    }, 300)
+    return () => {
+      if (debounceRef.current) clearTimeout(debounceRef.current)
+    }
+  }, [inputValue, setSearch])
+
+  return (
+    <div className="flex items-center gap-3 flex-wrap">
+      {/* Category pills */}
+      <div className="flex items-center gap-1.5 flex-wrap">
+        <button
+          type="button"
+          onClick={() => setCategory(null)}
+          className={cn(
+            'font-label text-xs px-3 py-1.5 rounded-full border transition-all',
+            activeCategoryId === null
+              ? 'bg-primary/10 border-primary/30 text-foreground border-l-[3px] border-l-primary'
+              : 'border-border text-muted-foreground hover:border-white/12 hover:text-foreground'
+          )}
+        >
+          All
+        </button>
+        {categories.map(cat => (
+          <button
+            key={cat.id}
+            type="button"
+            onClick={() => setCategory(cat.id)}
+            className={cn(
+              'font-label text-xs px-3 py-1.5 rounded-full border transition-all',
+              activeCategoryId === cat.id
+                ? 'bg-primary/10 border-primary/30 text-foreground border-l-[3px] border-l-primary'
+                : 'border-border text-muted-foreground hover:border-white/12 hover:text-foreground'
+            )}
+          >
+            {cat.name}
+          </button>
+        ))}
+      </div>
+
+      {/* Search input */}
+      <div className="relative ml-auto">
+        <Search size={14} className="absolute left-2.5 top-1/2 -translate-y-1/2 text-muted-foreground pointer-events-none" />
+        <input
+          type="text"
+          value={inputValue}
+          onChange={e => setInputValue(e.target.value)}
+          placeholder="Search templates…"
+          className="pl-8 pr-3 py-1.5 text-sm rounded-md border border-border bg-card text-foreground placeholder:text-muted-foreground focus:outline-none focus:border-[rgba(6,182,212,0.3)] focus:ring-1 focus:ring-[rgba(6,182,212,0.2)] w-52"
+        />
+      </div>
+    </div>
+  )
+}