feat: remove deprecated service and types, and refactor tool search request handling

internal/ai/runtime/tools/tool_search_tool_test.go

@@ -0,0 +1,32 @@
+package tools
+
+import "testing"
+
+func TestParseToolSearchRequest(t *testing.T) {
+	req, err := parseToolSearchRequest(`{"query":"  search docs  ","toolCode":" mcp_server/search ","arguments":{"q":"hello"}}`)
+	if err != nil {
+		t.Fatalf("parseToolSearchRequest returned error: %v", err)
+	}
+	if req.Query != "search docs" {
+		t.Fatalf("unexpected query: %q", req.Query)
+	}
+	if req.ToolCode != "mcp_server/search" {
+		t.Fatalf("unexpected toolCode: %q", req.ToolCode)
+	}
+	if req.Arguments["q"] != "hello" {
+		t.Fatalf("unexpected arguments: %#v", req.Arguments)
+	}
+}
+
+func TestParseToolSearchRequestDefaultsArguments(t *testing.T) {
+	req, err := parseToolSearchRequest(`{"query":"list"}`)
+	if err != nil {
+		t.Fatalf("parseToolSearchRequest returned error: %v", err)
+	}
+	if req.Arguments == nil {
+		t.Fatalf("expected non-nil arguments map")
+	}
+	if len(req.Arguments) != 0 {
+		t.Fatalf("expected empty arguments map, got %#v", req.Arguments)
+	}
+}