Documentation refactoring. No code changes. (0.40.5)

web/documentation/external/curl/curl.md

@@ -0,0 +1,32 @@
+---
+layout: page
+published: true
+noToc: false
+noComments: false
+noDate: false
+title: Fun - cURL (libcurl) extension (optional)
+subtitle: Documentation for cURL (libcurl) extension (optional)
+description: Documentation for cURL (libcurl) extension (optional)
+permalink: /documentation/external/curl/
+lang: en
+tags:
+- curl
+- extension
+- libcurl
+- optional
+---
+
+- CMake option: FUN_WITH_CURL=ON
+- Purpose: HTTP helpers using libcurl.
+- Homepage: [https://curl.se/libcurl/](https://curl.se/libcurl/){:class="ext"}
+
+## Opcodes:
+
+- OP_CURL_GET: GET; pops url:string; pushes body:string (empty on error/disabled)
+- OP_CURL_POST: POST; pops body:string, url:string; pushes response:string
+- OP_CURL_DOWNLOAD: Download to file; pops path:string, url:string; pushes 1/0
+
+## Notes:
+
+- Requires libcurl development headers/libs.
+- When disabled, helpers return empty strings/0 to match optional behavior.