fix: ASRX duplication, TKG edges, trace ingest, and add pipeline progress publishing

- ASRX handler no longer stores duplicate 'asr' pre_chunks
- Pre_chunks storage made idempotent (delete-before-insert)
- Rule 1 + trace_ingest changed to query 'asrx' not 'asr'
- Trace chunks removed (dynamic from TKG/Qdrant)
- TKG scroll_face_points fixed: trace_id >= 1 (not == 1)
- TKG AsrxSegmentEntry: start/end -> start_time/end_time (match ASRX JSON)
- Unregister error handling: log instead of silent discard
- Add publish_pipeline_progress calls at each pipeline stage
  (processors, rule1, face_trace, identity_agent, TKG, rule2, completion)

src/core/cache/redis_cache.rs

@@ -19,6 +19,10 @@ impl RedisCache {
         })
     }
 
+    pub async fn get_client(&self) -> Arc<RwLock<RedisClient>> {
+        self.client.clone()
+    }
+
     fn prefixed_key(&self, key: &str) -> String {
         format!("{}cache:{}", REDIS_KEY_PREFIX.as_str(), key)
     }