fix: remove hardcoded internal URL from sse-server.js OAuth discovery endpoint

Use SSE_SERVER_URL env var (falls back to localhost:8010).

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

Author: 2 people

sse-server.js

@@ -18,7 +18,7 @@ app.get('/health', (req, res) => {
 app.get('/.well-known/oauth-authorization-server', (req, res) => {
  res.setHeader('Content-Type', 'application/json');
  res.json({
-   issuer: 'https://data-dev.clay.cl/metabase-mcp'
+   issuer: process.env.SSE_SERVER_URL || 'http://localhost:8010'
  });
 });