test: 별칭 전용 테스트 삭제 + 영향 테스트/fixture 갱신

kebab-search/tests/lexical.rs 의 alias 채널 테스트 + insert_chunk_with_aliases
헬퍼 제거(body 회수 회귀 테스트로 대체). Chunk 리터럴 aliases: None 제거
(embedding_records_fk/idempotency/inspect). chunk 스냅샷 fixture 의 aliases
키 제거. config_migrate 는 ingest.code 앵커로, corpus_revision/search_lexical
주석은 V013 비-bump 명시로 갱신.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

crates/kebab-store-sqlite/tests/corpus_revision.rs

@@ -23,6 +23,8 @@ fn open_store(tmp: &TempDir) -> SqliteStore {
 /// Fresh store baseline: V004 seeds `corpus_revision = 0`, then V009,
 /// V010, and V011 migrations bump it by one each to invalidate any stale
 /// LRU cache — so a fresh store after `run_migrations()` reads back as `3`.
+/// (V012 derivation_cache + V013 drop-chunk-aliases are structural/additive
+/// and do NOT bump corpus_revision.)
 #[test]
 fn fresh_store_starts_at_post_migration_baseline() {
     let tmp = TempDir::new().unwrap();

crates/kebab-store-sqlite/tests/embedding_records_fk.rs

@@ -160,7 +160,6 @@ fn put_chunks_cleans_original_and_sentinel_embeddings() {
         chunker_version: ChunkerVersion("v1".to_string()),
         policy_hash: "h".to_string(),
         tokenized_korean_text: None,
-        aliases: None,
     };
     store.put_chunks(&doc_id, std::slice::from_ref(&chunk)).unwrap();
 
@@ -270,7 +269,6 @@ fn put_chunks_cleans_per_alias_sentinel_embeddings() {
         chunker_version: ChunkerVersion("v1".to_string()),
         policy_hash: "h".to_string(),
         tokenized_korean_text: None,
-        aliases: None,
     };
     store.put_chunks(&doc_id, std::slice::from_ref(&chunk)).unwrap();
 

crates/kebab-store-sqlite/tests/idempotency.rs

@@ -98,7 +98,6 @@ fn make_chunks(doc_id: &DocumentId) -> Vec<Chunk> {
         chunker_version: ChunkerVersion("md-heading-v1".into()),
         policy_hash: "deadbeefdeadbeef".into(),
         tokenized_korean_text: None,
-        aliases: None,
     }]
 }