chore(json): update json to use 20 sig digits

src/json.lua

@@ -104,12 +104,12 @@ local function encode_number(val)
 	if val ~= val or val <= -math.huge or val >= math.huge then
 		error("unexpected number value '" .. tostring(val) .. "'")
 	end
-	if math.floor(val) == val then
-		-- Large integers: avoid scientific notation and print as an integer
-		return string.format("%.0f", val)
+	-- Handle integer values separately to avoid floating-point conversion
+	if math.type(val) == "integer" then
+		return string.format("%d", val) -- Format as an integer
 	else
-		-- Decimals: use the 'g' format to print floating point with precision, up to 14 significant digits
-		return string.format("%.14g", val)
+		-- Use 20 significant digits for non-integer numbers
+		return string.format("%.20g", val)
 	end
 end