feat: Implement automated keyword-based news pipeline scheduler

- Add multi-threaded keyword scheduler for periodic news collection
- Create Keyword Manager API for CRUD operations and monitoring
- Implement automatic pipeline triggering (RSS → Google → AI → Translation)
- Add thread status monitoring and dynamic keyword management
- Support priority-based execution and configurable intervals
- Add comprehensive scheduler documentation guide
- Default keywords: AI, 테크놀로지, 경제, 블록체인

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

services/pipeline/translator/Dockerfile

@@ -9,7 +9,11 @@ RUN pip install --no-cache-dir -r requirements.txt
 # Copy shared modules
 COPY ./shared /app/shared
 
+# Copy config directory
+COPY ./config /app/config
+
 # Copy application code
 COPY ./translator /app
 
-CMD ["python", "translator.py"]
+# Use multi_translator.py as the main service
+CMD ["python", "multi_translator.py"]