feat(frontend): add autofocus prop to PersonTypeahead forwarded to text input

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

frontend/src/lib/components/PersonTypeahead.svelte

@@ -15,6 +15,7 @@ interface Props {
 	placeholder?: string;
 	compact?: boolean;
 	large?: boolean;
+	autofocus?: boolean;
 	restrictToCorrespondentsOf?: string;
 	onchange?: (value: string) => void;
 	onfocused?: () => void;
@@ -29,6 +30,7 @@ let {
 	placeholder,
 	compact = false,
 	large = false,
+	autofocus = false,
 	restrictToCorrespondentsOf,
 	onchange,
 	onfocused
@@ -121,6 +123,7 @@ function selectPerson(person: Person) {
 		type="text"
 		id="{name}-search"
 		autocomplete="off"
+		autofocus={autofocus}
 		bind:value={searchTerm}
 		oninput={handleInput}
 		onfocus={handleFocus}