Expand ZXDB entry data and search

Add entry release/license sections, label permissions/licenses,
expanded search scope (titles+aliases+origins), and home search.
Also include ZXDB submodule and update gitignore.

Signed-off-by: codex@lucy.xalior.com

src/app/api/zxdb/search/route.ts

@@ -14,6 +14,7 @@ const querySchema = z.object({
     .optional(),
   machinetypeId: z.coerce.number().int().positive().optional(),
   sort: z.enum(["title", "id_desc"]).optional(),
+  scope: z.enum(["title", "title_aliases", "title_aliases_origins"]).optional(),
   facets: z.coerce.boolean().optional(),
 });
 
@@ -27,6 +28,7 @@ export async function GET(req: NextRequest) {
     languageId: searchParams.get("languageId") ?? undefined,
     machinetypeId: searchParams.get("machinetypeId") ?? undefined,
     sort: searchParams.get("sort") ?? undefined,
+    scope: searchParams.get("scope") ?? undefined,
     facets: searchParams.get("facets") ?? undefined,
   });
   if (!parsed.success) {