Add missing but required content length header for löve2d usage

rockspecs/lua-genai-0.2.2-1.rockspec

@@ -0,0 +1,29 @@
+package = "lua-genai"
+version = "0.2.2-1"
+source = {
+   url = "https://github.com/emilrueh/lua-genai/archive/refs/tags/v0.2.2.tar.gz"
+}
+description = {
+   summary = "Generative AI SDK",
+   detailed = "Interface for generative AI providers like OpenAI, Anthropic, Google Gemini, DeepSeek, etc. abstracting away provider-specific payload structures and response parsing to simplify switching models.",
+   homepage = "https://github.com/emilrueh/lua-genai",
+   license = "Zlib"
+}
+dependencies = {
+   "lua >= 5.1",
+   "lua-cjson",
+   "luasec"
+}
+build = {
+   type = "builtin",
+   modules = {
+      genai = "src/genai/init.lua",
+      ["genai.features"] = "src/genai/features/init.lua",
+      ["genai.features.chat"] = "src/genai/features/chat.lua",
+      ["genai.genai"] = "src/genai/genai.lua",
+      ["genai.providers"] = "src/genai/providers/init.lua",
+      ["genai.providers.anthropic"] = "src/genai/providers/anthropic.lua",
+      ["genai.providers.openai"] = "src/genai/providers/openai.lua",
+      ["genai.utils"] = "src/genai/utils.lua"
+   }
+}

src/genai/utils.lua

@@ -25,7 +25,7 @@ function utils.send_request(url, payload, method, headers, callback, exception_h
 		return chunk
 	end
 
-	-- if payload then headers["Content-Length"] = #payload end
+	if payload then headers["Content-Length"] = #payload end
 
 	local request_opts = {
 		url = url,