chore(express-relay): fix links for express relay

apps/developer-hub/content/docs/express-relay/index.mdx

@@ -1,5 +1,5 @@
 ---
-title: "Express Relay: Eliminate MEV with Priority Auctions"
+title: "Express Relay"
 description: >-
   Express Relay enables better orderflow mechanisms that eliminate MEV. Protocol developers can recapture MEV while searchers get unified access to opportunities.
 icon: Gavel
@@ -28,15 +28,15 @@ To integrate with Express Relay, you can integrate as a protocol (to power token
 
 <div className="grid grid-cols-1 md:grid-cols-2 gap-6 mt-8">
   <IntegrationCard
-    href="./integrate-as-protocol"
+    href="/express-relay/integrate-as-protocol"
     colorScheme="blue"
     title="Integrate as a Protocol"
     description="Power token swaps and recapture MEV with Express Relay integration"
     icon={<Files size={16} />}
   />
 
   <IntegrationCard
-    href="./integrate-as-searcher"
+    href="/express-relay/integrate-as-searcher"
     colorScheme="green"
     title="Integrate as a Searcher"
     description="Access unified orderflow opportunities across DeFi protocols"
@@ -50,7 +50,7 @@ To learn more about Express Relay, refer to the following resources:
 
 <div className="mt-8">
   <IntegrationCard
-    href="./how-express-relay-works"
+    href="/express-relay/how-express-relay-works"
     colorScheme="purple"
     title="How Express Relay Works"
     description="Understand the mechanics behind Express Relay's priority auction system"

apps/developer-hub/content/docs/express-relay/integrate-as-searcher/index.mdx

@@ -71,7 +71,7 @@ Ready to integrate as a searcher? Start with our detailed integration guides:
 
 <div className="mt-8">
   <IntegrationCard
-    href="./svm"
+    href="/express-relay/integrate-as-searcher/svm"
     colorScheme="blue"
     title="Integrate with Express Relay on SVM Chains"
     description="Complete guide for integrating Express Relay on Solana Virtual Machine chains with code examples and best practices"
@@ -85,14 +85,14 @@ Explore these resources to enhance your searcher integration:
 
 ### API Documentation
 
-- **[WebSocket API Reference](./websocket-api-reference)** - Real-time opportunity streaming
-- **[HTTP API Reference](./http-api-reference)** - REST endpoints for opportunities and bidding
+- **[WebSocket API Reference](/express-relay/websocket-api-reference)** - Real-time opportunity streaming
+- **[HTTP API Reference](/express-relay/http-api-reference)** - REST endpoints for opportunities and bidding
 
 ### Technical Resources
 
-- **[Contract Addresses](./contract-addresses)** - Smart contract addresses across supported chains
-- **[Error Codes](./errors)** - Complete list of error codes and troubleshooting guide
+- **[Contract Addresses](/express-relay/contract-addresses)** - Smart contract addresses across supported chains
+- **[Error Codes](/express-relay/errors)** - Complete list of error codes and troubleshooting guide
 
 ### Understanding Express Relay
 
-- **[How Express Relay Works](./how-express-relay-works)** - Deep dive into the auction mechanism and architecture
+- **[How Express Relay Works](/express-relay/how-express-relay-works)** - Deep dive into the auction mechanism and architecture