refactor(app): ingest API 6변종 → 2 (ingest + ingest_with_config{IngestOpts})

summary_only를 IngestOpts에 흡수, progress/cancellable/opts 변종 제거.
재인덱싱 게이트 CHUNKS/SEARCH/ASK byte-IDENTICAL, clippy --all-targets 0.

crates/kebab-app/tests/schema_active_versions.rs

@@ -58,7 +58,7 @@ fn schema_emits_active_parsers_and_chunkers_array_after_ingest() {
     let cfg = minimal_config(dir.path(), &workspace);
     let scope = minimal_scope(&workspace);
 
-    kebab_app::ingest_with_config(cfg.clone(), scope, false).unwrap();
+    kebab_app::ingest_with_config(cfg.clone(), scope, kebab_app::IngestOpts::default()).unwrap();
 
     let s = schema_with_config(&cfg).unwrap();
     assert!(