Fixed crash

lua/gemini/api.lua

@@ -19,8 +19,15 @@ local function async_request(url, payload, callback)
 	local stdout = vim.loop.new_pipe()
 	local stderr = vim.loop.new_pipe()
 	
-	-- Spawn curl process
+	-- Spawn curl process with handle in broader scope
-	local handle = vim.loop.spawn('curl', {
+	local handle
+	local function cleanup()
+		if stdout then stdout:close() end
+		if stderr then stderr:close() end
+		if handle then handle:close() end
+	end
+
+	handle = vim.loop.spawn('curl', {
 		args = {
 			'-s',
 			'-X', 'POST',
@@ -30,10 +37,8 @@ local function async_request(url, payload, callback)
 		},
 		stdio = {nil, stdout, stderr}
 	}, function(exit_code, signal)  -- This is the exit callback
-		-- Close all handles
+		-- Clean up handles
-		stdout:close()
+		cleanup()
-		stderr:close()
-		handle:close()
 
 		if exit_code ~= 0 then
 			vim.schedule(function()
@@ -54,6 +59,7 @@ local function async_request(url, payload, callback)
 	end)
 
 	if not handle then
+		cleanup()
 		vim.schedule(function()
 			callback(nil, "Failed to start curl")
 		end)
@@ -63,6 +69,7 @@ local function async_request(url, payload, callback)
 	-- Handle stdout data
 	stdout:read_start(function(err, chunk)
 		if err then
+			cleanup()
 			vim.schedule(function()
 				callback(nil, "Read error: " .. err)
 			end)
@@ -76,6 +83,7 @@ local function async_request(url, payload, callback)
 	-- Handle stderr data
 	stderr:read_start(function(err, chunk)
 		if err then
+			cleanup()
 			vim.schedule(function()
 				callback(nil, "Error reading stderr: " .. err)
 			end)