fix: remove duplicate 'asr' pre_chunks storage in ASRX handler

Bug: ASRX handler stored pre_chunks as BOTH 'asrx' and 'asr' types.
This caused confusion because Rule 1 queries 'asrx' type, but only
'asr' type existed in the database (asrx type was deleted or never stored).

Fix: Remove the duplicate 'asr' storage (lines 530-542).
ASRX handler now only stores 'asrx' type pre_chunks to workspace SQLite.
PostgreSQL pre_chunks are stored by processor.rs with correct 'asrx' type.

This ensures Rule 1 can find ASRX pre_chunks correctly.

src/worker/job_worker.rs

@@ -527,19 +527,6 @@ impl JobWorker {
                                                 Some(&segment.text),
                                             )
                                             .await;
-                                        // Also store asr pre_chunks (needed by Rule 1 after checkin)
-                                        let _ = ws
-                                            .store_pre_chunk(
-                                                "asr",
-                                                "raw",
-                                                None,
-                                                None,
-                                                Some(segment.start_time),
-                                                Some(segment.end_time),
-                                                Some(&data.to_string()),
-                                                Some(&segment.text),
-                                            )
-                                            .await;
                                     }
                                     let spk_dets: Vec<crate::core::db::workspace_sqlite::SpeakerDetectionBatchItem> = result.segments.iter().map(|s| {
                                         crate::core::db::workspace_sqlite::SpeakerDetectionBatchItem {