feat(TRUEREF-0023): add sqlite-vec search pipeline

src/lib/server/db/schema.test.ts

@@ -6,6 +6,7 @@ import { readFileSync } from 'node:fs';
 import { join } from 'node:path';
 import { eq } from 'drizzle-orm';
 import * as schema from './schema';
+import { loadSqliteVec, sqliteVecRowidTableName, sqliteVecTableName } from './sqlite-vec';
 import {
 	repositories,
 	repositoryVersions,
@@ -24,6 +25,7 @@ import {
 function createTestDb() {
 	const client = new Database(':memory:');
 	client.pragma('foreign_keys = ON');
+	loadSqliteVec(client);
 
 	const db = drizzle(client, { schema });
 
@@ -266,10 +268,11 @@ describe('snippets table', () => {
 
 describe('snippet_embeddings table', () => {
 	let db: ReturnType<typeof createTestDb>['db'];
+	let client: Database.Database;
 	let snippetId: string;
 
 	beforeEach(() => {
-		({ db } = createTestDb());
+		({ db, client } = createTestDb());
 		db.insert(repositories).values(makeRepo()).run();
 		const docId = crypto.randomUUID();
 		db.insert(documents)
@@ -344,6 +347,30 @@ describe('snippet_embeddings table', () => {
 		const result = db.select().from(snippetEmbeddings).all();
 		expect(result).toHaveLength(0);
 	});
+
+	it('keeps the relational schema free of vec_embedding and retains the profile index', () => {
+		const columns = client
+			.prepare("PRAGMA table_info('snippet_embeddings')")
+			.all() as Array<{ name: string }>;
+		expect(columns.map((column) => column.name)).not.toContain('vec_embedding');
+
+		const indexes = client
+			.prepare("PRAGMA index_list('snippet_embeddings')")
+			.all() as Array<{ name: string }>;
+		expect(indexes.map((index) => index.name)).toContain('idx_embeddings_profile');
+	});
+
+	it('loads sqlite-vec idempotently and derives deterministic per-profile table names', () => {
+		expect(() => loadSqliteVec(client)).not.toThrow();
+		const tableName = sqliteVecTableName('local-default');
+		const rowidTableName = sqliteVecRowidTableName('local-default');
+
+		expect(tableName).toMatch(/^snippet_embeddings_vec_local_default_[0-9a-f]{8}$/);
+		expect(rowidTableName).toMatch(/^snippet_embeddings_vec_rowids_local_default_[0-9a-f]{8}$/);
+		expect(sqliteVecTableName('local-default')).toBe(tableName);
+		expect(sqliteVecRowidTableName('local-default')).toBe(rowidTableName);
+		expect(sqliteVecTableName('local-default')).not.toBe(sqliteVecTableName('openai/custom'));
+	});
 });
 
 describe('indexing_jobs table', () => {