Brand prose as WaveSpeed; WaveSpeedAI stays for identity fields

Per the branding rule: prose self-references say WaveSpeed; the
WaveSpeedAI form remains for package author metadata and the GitHub
org handle.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LJJXU9zyoDSBjApcUpteDt

Author: chengzeyi

README.md

@@ -6,10 +6,10 @@
     </picture>
   </a>
 
-  <h1>WaveSpeedAI Python SDK</h1>
+  <h1>WaveSpeed Python SDK</h1>
 
   <p>
-    <strong>Official Python SDK for the WaveSpeedAI inference platform</strong>
+    <strong>Official Python SDK for the WaveSpeed inference platform</strong>
   </p>
 
   <p>

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "wavespeed"
-description = "WaveSpeedAI Python Client — Official Python SDK for WaveSpeedAI inference platform"
+description = "WaveSpeed Python Client — Official Python SDK for the WaveSpeed inference platform"
 readme = "README.md"
 requires-python = ">=3.8"
 license = {text = "MIT"}