morshu-server: use resolved absolute paths and pass env properly

ttstoy/morshu-server/server.py

@@ -3,18 +3,22 @@
 Morshu TTS Server — standalone HTTP API for MorshuTalk engine.
 Runs on port 3002. GET /say?text=... returns WAV audio.
 """
+import os
 import sys
 import io
 from pathlib import Path
 from http.server import HTTPServer, BaseHTTPRequestHandler
 from urllib.parse import urlparse, parse_qs
 
-# Add ttstoy to path so we can import the engine
-sys.path.insert(0, str(Path(__file__).parent.parent))
+# Add ttstoy root to path so we can import the engine
+SCRIPT_DIR = Path(__file__).resolve().parent
+TTSTOY_DIR = SCRIPT_DIR.parent
+sys.path.insert(0, str(TTSTOY_DIR))
+
 from morshutalk_engine import Morshu
 
 morshu = Morshu()
-PORT = 3002
+PORT = int(os.environ.get("PORT", 3002))
 
 
 class Handler(BaseHTTPRequestHandler):