feat: add topic alias resolution APIs

src/core/schema.ts

@@ -2,6 +2,7 @@ export const TOPICS_TABLE = 'topics';
 export const FACTS_TABLE = 'facts';
 export const FACT_TOPICS_TABLE = 'fact_topics';
 export const TOPIC_RELATIONS_TABLE = 'topic_relations';
+export const TOPIC_ALIASES_TABLE = 'topic_aliases';
 
 export const TOPIC_COLUMNS = [
   'id',
@@ -40,3 +41,13 @@ export const TOPIC_RELATION_COLUMNS = [
   'relation',
   'created_at',
 ] as const;
+
+export const TOPIC_ALIAS_COLUMNS = [
+  'id',
+  'topic_id',
+  'alias',
+  'normalized_alias',
+  'is_primary',
+  'created_at',
+  'updated_at',
+] as const;