fix(docs): update /sdks references to /api-reference in llms.txt files

Author: waleedlatif1

apps/docs/app/llms.txt/route.ts

@@ -62,7 +62,7 @@ ${Object.entries(sections)
 
 - Full documentation content: ${baseUrl}/llms-full.txt
 - Individual page content: ${baseUrl}/llms.mdx/[page-path]
-- API documentation: ${baseUrl}/sdks/
+- API documentation: ${baseUrl}/api-reference/
 - Tool integrations: ${baseUrl}/tools/
 
 ## Statistics

apps/sim/public/llms.txt

@@ -56,4 +56,4 @@ The Sim blog covers announcements, technical deep-dives, and guides for building
 - MCP Protocol: https://docs.sim.ai/mcp
 - Self-Hosting: https://docs.sim.ai/self-hosting
 - API Reference: https://docs.sim.ai/api-reference/getting-started
-- SDKs: https://docs.sim.ai/sdks
+- SDKs: https://docs.sim.ai/api-reference