fix: remove dead code duplicates, add SQL LIMIT across all services

- Remove duplicate function definitions with hardcoded "AI-оператор" strings
  (ai_voice_runtime, ai_orchestrator, voice_name_config, voice.py)
- Remove unreachable dead code after return in ai_voice_runtime
- Add SQL LIMIT to 17 unbounded queries across 12 services to prevent OOM
- Move Python-side filtering to SQL WHERE in reporting_service
- Downgrade 19 logger.warning to logger.info for normal-flow events in media_runtime

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

services/reporting_service/app.py

@@ -244,17 +244,17 @@ def _load_fact_records(
     queue_id: str | None,
     channel: str | None,
 ) -> list[dict[str, Any]]:
-    rows = session.execute(
-        select(ReportingInteractionFactRow).order_by(ReportingInteractionFactRow.id.asc())
-    ).scalars().all()
-    records = [_serialize_fact_row(row) for row in rows]
+    stmt = select(ReportingInteractionFactRow).order_by(ReportingInteractionFactRow.id.asc())
     if queue_id:
-        records = [item for item in records if item["queue_id"] == queue_id]
+        stmt = stmt.where(ReportingInteractionFactRow.queue_id == queue_id)
     if channel:
-        records = [item for item in records if item["channel"] == channel]
-    if dt_from or dt_to:
-        records = [item for item in records if _in_range(item["created_at"], dt_from, dt_to)]
-    return records
+        stmt = stmt.where(ReportingInteractionFactRow.channel == channel)
+    if dt_from:
+        stmt = stmt.where(ReportingInteractionFactRow.created_at >= dt_from.isoformat())
+    if dt_to:
+        stmt = stmt.where(ReportingInteractionFactRow.created_at < dt_to.isoformat())
+    rows = session.execute(stmt).scalars().all()
+    return [_serialize_fact_row(row) for row in rows]
 
 
 def _load_interactions_map(session, interaction_ids: list[str]) -> dict[str, Interaction]: