feat: extensible search engine with person entities (FTS5/tsvector)

crates/application/src/use_cases/search.rs

@@ -0,0 +1,6 @@
+use domain::{errors::DomainError, models::{SearchQuery, SearchResults}};
+use crate::context::AppContext;
+
+pub async fn execute(ctx: &AppContext, query: SearchQuery) -> Result<SearchResults, DomainError> {
+    ctx.search_port.search(&query).await
+}