[refactor] replaced info logging with debug for improved logging granularity and removed redundant log statements in backend services

backend/app/main.py

@@ -150,8 +150,6 @@ async def get_news(
             where_conditions.append("published BETWEEN ? AND ?")
             params.extend([from_ts, to_ts])
 
-            logger.info(f"Date range: {from_date} to {to_date} (UTC timestamps: {from_ts} to {to_ts})")
-
         # Build the complete SQL query
         base_sql = """
                    SELECT id, title, summary, url, published, country, created_at
@@ -163,27 +161,13 @@ async def get_news(
         else:
             sql = base_sql
 
-        sql += " ORDER BY published DESC LIMIT 1000"
-
-        # Log query info
-        if all_countries and all_dates:
-            logger.info("Querying ALL news articles (no filters)")
-        elif all_countries:
-            logger.info(f"Querying news from ALL countries with date filter")
-        elif all_dates:
-            logger.info(f"Querying ALL dates for countries: {country}")
-        else:
-            logger.info(f"Querying news: countries={country}, timezone={timezone_name}")
-
-        logger.info(f"SQL: {sql}")
-        logger.info(f"Parameters: {params}")
+        sql += " ORDER BY published DESC"
 
         # Execute the query
         db.execute(sql, params)
         rows = db.fetchall()
         result = [dict(row) for row in rows]
 
-        logger.info(f"Found {len(result)} news articles")
         return result
 
     except ValueError as e: