refactor ai serving modules and crates

apps/aether-gateway/src/ai_serving/planner/specialized/mod.rs

@@ -0,0 +1,20 @@
+//! Non-matrix AI surfaces such as files and video.
+
+mod files;
+mod image;
+mod video;
+
+pub(crate) use self::files::{
+    build_local_gemini_files_stream_plan_and_reports_for_kind,
+    build_local_gemini_files_sync_plan_and_reports_for_kind,
+    maybe_build_stream_local_gemini_files_decision_payload,
+    maybe_build_sync_local_gemini_files_decision_payload,
+};
+pub(crate) use self::image::{
+    build_local_image_stream_plan_and_reports_for_kind,
+    build_local_image_sync_plan_and_reports_for_kind,
+    maybe_build_stream_local_image_decision_payload, maybe_build_sync_local_image_decision_payload,
+};
+pub(crate) use self::video::{
+    build_local_video_sync_plan_and_reports_for_kind, maybe_build_sync_local_video_decision_payload,
+};