feat(components): add blog support to product links

- Added blog field to CommunityUrls interface and ProductLinks
- Updated docsUrl and applyKeyUrl props to accept string | null

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: ericyangpan

src/components/product/ProductHero.tsx

@@ -40,9 +40,9 @@ export interface ProductHeroProps {
   // Links
   websiteUrl?: string
   githubUrl?: string
-  docsUrl?: string
+  docsUrl?: string | null
   downloadUrl?: string
-  applyKeyUrl?: string // For providers
+  applyKeyUrl?: string | null // For providers
 
   // Additional URLs (for models)
   additionalUrls?: {

src/components/product/ProductLinks.tsx

@@ -16,6 +16,7 @@ export interface CommunityUrls {
   youtube?: string
   discord?: string
   reddit?: string
+  blog?: string
 }
 
 export interface ProductLinksProps {
@@ -46,6 +47,7 @@ export function ProductLinks({ resourceUrls, communityUrls }: ProductLinksProps)
     'youtube',
     'discord',
     'reddit',
+    'blog',
   ] as const
 
   // Generate link configurations for resourceUrls by iterating over keys