fix(hashnode): W1-1 MCP-build canonical -> /developers (was 410)

The W1-1 Hashnode post canonical pointed to
https://buywhere.ai/blog/how-i-built-a-price-comparison-mcp-server which
returns HTTP 410. The page was never re-published on buywhere.ai; the
post is a developer-focused tutorial about the MCP server.

Point canonical to https://buywhere.ai/developers (200, semantically
aligned) so the Hashnode-to-buywhere.ai redirect lands on a live page
matching the audience. Avoids a dead canonical when Hashnode sets up
its buywhere.hashnode.dev -> buywhere.ai redirect for the post.

Ref BUY-52880.

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

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

Author: BuyWhere

hashnode-post-w1-1-how-i-built-a-price-comparison-mcp-server.md

@@ -4,7 +4,7 @@ slug: "how-i-built-a-price-comparison-mcp-server"
 subtitle: "An MCP server that finds the cheapest price across Amazon, Best Buy, Shopee, Lazada, Apple Store, and 4 more retailers — across 9 countries — in under 2 seconds. Here's the architecture and how to wire it into Claude or Cursor in 5 minutes."
 tags: "mcp, modelcontextprotocol, claude, cursor, llm, devtools, api, comparison, ecommerce, indie-hacker"
 domain: "buywhere.hashnode.dev"
-canonical: "https://buywhere.ai/blog/how-i-built-a-price-comparison-mcp-server"
+canonical: "https://buywhere.ai/developers"
 seoTitle: "How I built a price-comparison MCP server (and how you can call it from Claude or Cursor)"
 seoDescription: "Build a price-comparison MCP server that searches Amazon, Best Buy, Shopee, Lazada, and more across 9 countries. Full architecture, code samples, and a 5-minute Claude/Cursor wiring guide."
 coverImage: "https://buywhere.ai/og/mcp-build.png"