Fix build errors and add package-lock.json

- Fix Prisma Json type compatibility for metadata fields
- Fix Set iteration for ES5 target in parser
- Add package-lock.json from npm install

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

src/app/api/sources/[id]/sync/route.ts

@@ -87,7 +87,7 @@ export async function POST(
             cost: raw.cost,
             status: raw.status,
             externalUrl: raw.externalUrl,
-            metadata: raw.metadata,
+            metadata: raw.metadata as any ?? undefined,
           },
         })
         updated++
@@ -124,7 +124,7 @@ export async function POST(
             cost: raw.cost,
             status: raw.status,
             visibility: raw.visibility,
-            metadata: raw.metadata,
+            metadata: raw.metadata as any ?? undefined,
             createdById: auth.user.id,
             spaceSlug: source.spaceSlug,
           },

src/lib/parser.ts

@@ -204,7 +204,7 @@ function inferCategory(text: string): string {
 
 function extractTags(text: string): string[] {
   const hashTags = text.match(/#(\w+)/g)?.map(t => t.slice(1)) || []
-  return [...new Set(hashTags)].slice(0, 10)
+  return Array.from(new Set(hashTags)).slice(0, 10)
 }
 
 function extractOrganizer(text: string): string {

src/lib/sources/types.ts

@@ -28,7 +28,7 @@ export interface RawEvent {
   cost: string
   status: string
   visibility: string
-  metadata: Record<string, unknown> | null
+  metadata: Record<string, string | number | boolean> | null
 }
 
 export interface SourceAdapter {