feat: add Google code retrieval across desktop CLI and MCP

crates/searchi-cli/tests/commands.rs

@@ -157,3 +157,55 @@ fn exclusions_and_filters_change_real_results() {
     let stats: serde_json::Value = serde_json::from_slice(&stats.stdout).unwrap();
     assert_eq!(stats["files"], 2);
 }
+
+#[test]
+fn code_only_filters_real_results_and_finds_exact_symbols() {
+    let fixture = Fixture::new();
+    fs::create_dir(fixture.0.join("code")).unwrap();
+    fs::write(
+        fixture.0.join("code/retry.rs"),
+        "pub fn refreshAccessToken() { /* retry failed requests with backoff */ }",
+    )
+    .unwrap();
+    fs::write(
+        fixture.0.join("code/notes.txt"),
+        "refreshAccessToken retry failed requests with backoff",
+    )
+    .unwrap();
+    let indexed = fixture.run(&["index", "--db", "index.db", "--root", "code"]);
+    assert!(
+        indexed.status.success(),
+        "{}",
+        String::from_utf8_lossy(&indexed.stderr)
+    );
+    let all = fixture.run(&["search", "--db", "index.db", "refreshAccessToken", "--json"]);
+    assert_eq!(
+        serde_json::from_slice::<serde_json::Value>(&all.stdout)
+            .unwrap()
+            .as_array()
+            .unwrap()
+            .len(),
+        2
+    );
+    let code = fixture.run(&[
+        "search",
+        "--db",
+        "index.db",
+        "refreshAccessToken",
+        "--code-only",
+        "--json",
+    ]);
+    assert!(
+        code.status.success(),
+        "{}",
+        String::from_utf8_lossy(&code.stderr)
+    );
+    let results: serde_json::Value = serde_json::from_slice(&code.stdout).unwrap();
+    assert_eq!(results.as_array().unwrap().len(), 1);
+    assert_eq!(results[0]["filename"], "retry.rs");
+    assert!(results[0]["snippet"]
+        .as_str()
+        .unwrap()
+        .contains("refreshAccessToken"));
+    assert_eq!(results[0]["source"]["kind"], "line");
+}