Added AI skills

.agents/skills/react-hook-form/references/integ-shadcn-select-wiring.md

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+---
+title: Wire shadcn Select with onValueChange Instead of Spread
+impact: MEDIUM
+impactDescription: prevents a Radix Select that renders but never writes to the form
+tags: integ, shadcn, select, radix
+---
+
+## Wire shadcn Select with onValueChange Instead of Spread
+
+shadcn's Select (built on Radix) uses `onValueChange` instead of `onChange`. Spreading field props directly doesn't work. Manually wire the value change handler.
+
+**Incorrect (spread doesn't work with Radix Select):**
+
+```typescript
+function CountrySelect({ control }: { control: Control }) {
+  return (
+    <FormField
+      control={control}
+      name="country"
+      render={({ field }) => (
+        <Select {...field}>  {/* field.onChange expects event, Radix passes value */}
+          <SelectTrigger>
+            <SelectValue placeholder="Select country" />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="us">United States</SelectItem>
+            <SelectItem value="uk">United Kingdom</SelectItem>
+          </SelectContent>
+        </Select>
+      )}
+    />
+  )
+}
+```
+
+**Correct (wire props individually):**
+
+```typescript
+function CountrySelect({ control }: { control: Control }) {
+  return (
+    <FormField
+      control={control}
+      name="country"
+      render={({ field }) => (
+        <Select
+          value={field.value}
+          onValueChange={field.onChange}  // Radix passes value directly
+          onOpenChange={() => field.onBlur()}  // Trigger blur on close
+        >
+          <SelectTrigger>
+            <SelectValue placeholder="Select country" />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="us">United States</SelectItem>
+            <SelectItem value="uk">United Kingdom</SelectItem>
+          </SelectContent>
+        </Select>
+      )}
+    />
+  )
+}
+```
+
+Reference: [shadcn Select](https://ui.shadcn.com/docs/components/select)