Add context.Context parameter to all API methods

Enable request timeout and cancellation control by adding context.Context
as the first parameter to all SDK API methods. This allows users to:
- Set per-request timeouts
- Cancel in-flight requests
- Pass request-scoped values

client/client.go

@@ -2,6 +2,7 @@ package client
 
 import (
 	"bytes"
+	"context"
 	"crypto/hmac"
 	"crypto/sha256"
 	"encoding/base64"
@@ -62,7 +63,7 @@ func (c *Client) createHmac(msgStr string) []byte {
 	return h.Sum(nil)
 }
 
-func (c *Client) doRequest(method, path, contentType string, body any, response any) error {
+func (c *Client) doRequest(ctx context.Context, method, path, contentType string, body any, response any) error {
 	var bodyBytes []byte
 	var err error
 
@@ -83,7 +84,7 @@ func (c *Client) doRequest(method, path, contentType string, body any, response
 	}
 
 	fullURL := c.baseURL + path
-	req, err := http.NewRequest(method, fullURL, bytes.NewBuffer(bodyBytes))
+	req, err := http.NewRequestWithContext(ctx, method, fullURL, bytes.NewBuffer(bodyBytes))
 	if err != nil {
 		return fmt.Errorf("failed to create request: %w", err)
 	}
@@ -127,18 +128,18 @@ func checkByteSlice(body interface{}) bool {
 	return ok
 }
 
-func (c *Client) Get(path string, response any) error {
-	return c.doRequest(http.MethodGet, path, "", nil, response)
+func (c *Client) Get(ctx context.Context, path string, response any) error {
+	return c.doRequest(ctx, http.MethodGet, path, "", nil, response)
 }
 
-func (c *Client) Post(path, contentType string, body any, response any) error {
-	return c.doRequest(http.MethodPost, path, contentType, body, response)
+func (c *Client) Post(ctx context.Context, path, contentType string, body any, response any) error {
+	return c.doRequest(ctx, http.MethodPost, path, contentType, body, response)
 }
 
-func (c *Client) Put(path, contentType string, body any, response any) error {
-	return c.doRequest(http.MethodPut, path, contentType, body, response)
+func (c *Client) Put(ctx context.Context, path, contentType string, body any, response any) error {
+	return c.doRequest(ctx, http.MethodPut, path, contentType, body, response)
 }
 
-func (c *Client) Delete(path string, response any) error {
-	return c.doRequest(http.MethodDelete, path, "", nil, response)
+func (c *Client) Delete(ctx context.Context, path string, response any) error {
+	return c.doRequest(ctx, http.MethodDelete, path, "", nil, response)
 }