add metadata-driven game catalog vector schema

sql/adb/79_sg_game_catalog_vector.sql

@@ -0,0 +1,58 @@
+-- Metadata-driven game catalog for deterministic scope resolution.
+-- No customer game names or prefixes are embedded in this script.
+
+BEGIN
+  EXECUTE IMMEDIATE q'[
+    CREATE TABLE sg_game_catalog (
+      game_key       VARCHAR2(128) PRIMARY KEY,
+      game_id        VARCHAR2(128) NOT NULL,
+      game_prefix    VARCHAR2(128),
+      game_nm        VARCHAR2(512),
+      game_alias_nm  VARCHAR2(512),
+      search_text    CLOB NOT NULL,
+      embedding      VECTOR(1536, FLOAT32),
+      active_yn      CHAR(1) DEFAULT 'Y' NOT NULL,
+      priority       NUMBER DEFAULT 100 NOT NULL,
+      updated_at     TIMESTAMP(6) DEFAULT SYSTIMESTAMP NOT NULL
+    )]';
+EXCEPTION
+  WHEN OTHERS THEN
+    IF SQLCODE != -955 THEN RAISE; END IF;
+END;
+/
+
+MERGE INTO sg_game_catalog c
+USING (
+  SELECT
+    game_id AS game_key,
+    game_id,
+    MAX(game_prefix) AS game_prefix,
+    MAX(game_nm) AS game_nm,
+    LISTAGG(game_alias_nm, ' ') WITHIN GROUP (ORDER BY game_alias_nm) AS game_alias_nm,
+    game_id || ' ' || MAX(NVL(game_nm, '')) || ' '
+      || LISTAGG(NVL(game_alias_nm, ''), ' ') WITHIN GROUP (ORDER BY game_alias_nm)
+      || ' ' || MAX(NVL(game_prefix, '')) AS search_text
+  FROM comn_game_alias_bas
+  WHERE use_yn = 'Y'
+  GROUP BY game_id
+) s
+ON (c.game_key = s.game_key)
+WHEN MATCHED THEN UPDATE SET
+  c.game_id = s.game_id,
+  c.game_prefix = s.game_prefix,
+  c.game_nm = s.game_nm,
+  c.game_alias_nm = s.game_alias_nm,
+  c.search_text = s.search_text,
+  c.active_yn = 'Y',
+  c.updated_at = SYSTIMESTAMP
+WHEN NOT MATCHED THEN INSERT
+  (game_key, game_id, game_prefix, game_nm, game_alias_nm, search_text)
+VALUES
+  (s.game_key, s.game_id, s.game_prefix, s.game_nm, s.game_alias_nm, s.search_text);
+/
+
+COMMENT ON TABLE sg_game_catalog IS
+  'Customer-owned game catalog used to resolve query scope before NL2SQL.';
+COMMENT ON COLUMN sg_game_catalog.embedding IS
+  'Vector representation of game names and aliases; populated by the configured embedding job.';
+/