Update data directory mapping and config path handling

Changed Docker volume mapping from './database' to './data' in README-Docker.md for SQLite files. Updated web_server.py to support config path override via SOULSYNC_CONFIG_PATH environment variable, improving Docker compatibility.

README-Docker.md

@@ -50,7 +50,7 @@ open http://localhost:8008
 SoulSync requires persistent storage for:
 
 - **`./config`** → `/app/config` - Configuration files
-- **`./database`** → `/app/database` - SQLite database files  
+- **`./data`** → `/app/data` - SQLite database files  
 - **`./logs`** → `/app/logs` - Application logs
 - **`./downloads`** → `/app/downloads` - Downloaded music files
 - **`./Transfer`** → `/app/Transfer` - Processed/matched music files
@@ -229,7 +229,7 @@ services:
       - "8888:8888"
     volumes:
       - ./config:/app/config
-      - ./database:/app/database  
+      - ./data:/app/data  
       - ./logs:/app/logs
       - ./downloads:/app/downloads
       - ./Transfer:/app/Transfer

web_server.py

@@ -47,7 +47,14 @@ from beatport_unified_scraper import BeatportUnifiedScraper
 # --- Flask App Setup ---
 base_dir = os.path.abspath(os.path.dirname(__file__))
 project_root = os.path.dirname(base_dir) # Go up one level to the project root
-config_path = os.path.join(project_root, 'config', 'config.json')
+
+# Check for environment variable first (Docker support), then fallback to calculated path
+env_config_path = os.environ.get('SOULSYNC_CONFIG_PATH')
+if env_config_path:
+    config_path = env_config_path
+    print(f"🔧 Using config path from environment: {config_path}")
+else:
+    config_path = os.path.join(project_root, 'config', 'config.json')
 
 if os.path.exists(config_path):
     print(f"Found config file at: {config_path}")