Big refactoring

app/config.py

@@ -22,15 +22,24 @@ class Settings(BaseSettings):
     # Sentiment Provider — OpenAI
     openai_api_key: str = ""
     openai_model: str = "gpt-4o-mini"
+    openai_sentiment_batch_size: int = 5
 
     # Fundamentals Provider — Financial Modeling Prep
     fmp_api_key: str = ""
 
+    # Fundamentals Provider — Finnhub (optional fallback)
+    finnhub_api_key: str = ""
+
+    # Fundamentals Provider — Alpha Vantage (optional fallback)
+    alpha_vantage_api_key: str = ""
+
     # Scheduled Jobs
     data_collector_frequency: str = "daily"
     sentiment_poll_interval_minutes: int = 30
     fundamental_fetch_frequency: str = "daily"
     rr_scan_frequency: str = "daily"
+    fundamental_rate_limit_retries: int = 3
+    fundamental_rate_limit_backoff_seconds: int = 15
 
     # Scoring Defaults
     default_watchlist_auto_size: int = 10