feat: Implement async queue-based news pipeline with microservices

Major architectural transformation from synchronous to asynchronous processing:

## Pipeline Services (8 microservices)
- pipeline-scheduler: APScheduler for 30-minute periodic job triggers
- pipeline-rss-collector: RSS feed collection with deduplication (7-day TTL)
- pipeline-google-search: Content enrichment via Google Search API
- pipeline-ai-summarizer: AI summarization using Claude API (claude-sonnet-4-20250514)
- pipeline-translator: Translation using DeepL Pro API
- pipeline-image-generator: Image generation with Replicate API (Stable Diffusion)
- pipeline-article-assembly: Final article assembly and MongoDB storage
- pipeline-monitor: Real-time monitoring dashboard (port 8100)

## Key Features
- Redis-based job queue with deduplication
- Asynchronous processing with Python asyncio
- Shared models and queue manager for inter-service communication
- Docker containerization for all services
- Container names standardized with site11_ prefix

## Removed Services
- Moved to backup: google-search, rss-feed, news-aggregator, ai-writer

## Configuration
- DeepL Pro API: 3abbc796-2515-44a8-972d-22dcf27ab54a
- Claude Model: claude-sonnet-4-20250514
- Redis Queue TTL: 7 days for deduplication

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

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

config/api-keys-backup.env

@@ -0,0 +1,18 @@
+# API Keys Backup - Created on 2025-01-13
+# 이 파일은 중요한 API 키를 백업한 것입니다. 안전하게 보관하세요.
+
+# Claude API Key
+CLAUDE_API_KEY=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
+
+# Google APIs
+GOOGLE_API_KEY=AIzaSyBakoCsDP_oF5V4oq_eEKs4eQb-ekqxnRM
+GOOGLE_SEARCH_ENGINE_ID=35bfbdb7b6f244569
+
+# Translation (DeepL)
+DEEPL_API_KEY=3abbc796-2515-44a8-972d-22dcf27ab54a
+
+# Image Generation (Replicate)
+REPLICATE_API_TOKEN=r8_AR4puLJQYD4eeuPljw2yJvKCWKT72k119pEyp
+
+# Additional APIs (필요시 추가)
+# SERPAPI_KEY=