fix(UI-0001): map snake_case repo columns to camelCase in libs API response

better-sqlite3 returns raw snake_case column names from SELECT *, so
trust_score, total_snippets etc. were not matching the camelCase keys
(trustScore, totalSnippets) that RepositoryCard.svelte reads. Added a
mapRepo() helper in the GET /api/v1/libs handler to normalise the shape
before JSON serialisation, fixing the trust score and snippet count
display on repository cards.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/routes/api/v1/libs/+server.ts

@@ -4,11 +4,60 @@
  */
 import { json } from '@sveltejs/kit';
 import type { RequestHandler } from './$types';
+import type { Repository } from '$lib/types';
 import { getClient } from '$lib/server/db/client';
 import { RepositoryService } from '$lib/server/services/repository.service';
 import { getQueue } from '$lib/server/pipeline/startup';
 import { handleServiceError } from '$lib/server/utils/validation';
 
+// ---------------------------------------------------------------------------
+// Row mapper — better-sqlite3 returns snake_case column names from SELECT *;
+// this converts them to the camelCase shape expected by the Repository type
+// and by client components (e.g. RepositoryCard reads repo.trustScore).
+// ---------------------------------------------------------------------------
+
+interface RawRepoRow {
+	id: string;
+	title: string;
+	description: string | null;
+	source: string;
+	source_url: string;
+	branch: string | null;
+	state: string;
+	total_snippets: number;
+	total_tokens: number;
+	trust_score: number;
+	benchmark_score: number;
+	stars: number | null;
+	github_token: string | null;
+	last_indexed_at: number | null;
+	created_at: number;
+	updated_at: number;
+}
+
+function mapRepo(raw: Repository): Repository {
+	const r = raw as unknown as RawRepoRow;
+	return {
+		id: r.id,
+		title: r.title,
+		description: r.description ?? null,
+		source: r.source as Repository['source'],
+		sourceUrl: r.source_url,
+		branch: r.branch ?? null,
+		state: r.state as Repository['state'],
+		totalSnippets: r.total_snippets ?? 0,
+		totalTokens: r.total_tokens ?? 0,
+		trustScore: r.trust_score ?? 0,
+		benchmarkScore: r.benchmark_score ?? 0,
+		stars: r.stars ?? null,
+		githubToken: r.github_token ?? null,
+		lastIndexedAt:
+			r.last_indexed_at != null ? new Date(r.last_indexed_at * 1000) : null,
+		createdAt: new Date(r.created_at * 1000),
+		updatedAt: new Date(r.updated_at * 1000)
+	};
+}
+
 function getService() {
 	return new RepositoryService(getClient());
 }
@@ -28,11 +77,14 @@ export const GET: RequestHandler = ({ url }) => {
 		const libraries = service.list({ state: state ?? undefined, limit, offset });
 		const total = service.count(state ?? undefined);
 
-		// Augment each library with its versions array; strip sensitive fields.
+		// Map raw snake_case rows to camelCase, augment with versions, strip sensitive fields.
-		const enriched = libraries.map(({ githubToken: _token, ...repo }) => ({
+		const enriched = libraries.map((rawRepo) => {
+			const { githubToken: _token, ...repo } = mapRepo(rawRepo);
+			return {
 				...repo,
 				versions: service.getVersions(repo.id)
-		}));
+			};
+		});
 
 		return json({ libraries: enriched, total, limit, offset });
 	} catch (err) {