refactor: Move utility services to a dedicated 'services' module

- Updated import paths for LLM, connector, query, and streaming services to reflect their new location in the 'services' module.
- Removed obsolete utility service files that have been migrated.

surfsense_backend/app/agents/podcaster/nodes.py

@@ -14,7 +14,7 @@ from .configuration import Configuration
 from .state import PodcastTranscriptEntry, State, PodcastTranscripts
 from .prompts import get_podcast_generation_prompt
 from app.config import config as app_config
-from app.utils.llm_service import get_user_long_context_llm
+from app.services.llm_service import get_user_long_context_llm
 
 
 async def create_podcast_transcript(state: State, config: RunnableConfig) -> Dict[str, Any]:

surfsense_backend/app/agents/researcher/nodes.py

@@ -2,7 +2,7 @@ import asyncio
 import json
 from typing import Any, Dict, List
 
-from app.utils.connector_service import ConnectorService
+from app.services.connector_service import ConnectorService
 from langchain_core.messages import HumanMessage, SystemMessage
 from langchain_core.runnables import RunnableConfig
 
@@ -16,7 +16,7 @@ from .sub_section_writer.configuration import SubSectionType
 from .qna_agent.graph import graph as qna_agent_graph
 from .utils import AnswerOutline, get_connector_emoji, get_connector_friendly_name
 
-from app.utils.query_service import QueryService
+from app.services.query_service import QueryService
 
 from langgraph.types import StreamWriter
 
@@ -262,7 +262,7 @@ async def write_answer_outline(state: State, config: RunnableConfig, writer: Str
     Returns:
         Dict containing the answer outline in the "answer_outline" key for state update.
     """
-    from app.utils.llm_service import get_user_strategic_llm
+    from app.services.llm_service import get_user_strategic_llm
     from app.db import get_async_session
     
     streaming_service = state.streaming_service

surfsense_backend/app/agents/researcher/qna_agent/nodes.py

@@ -1,4 +1,4 @@
-from app.utils.reranker_service import RerankerService
+from app.services.reranker_service import RerankerService
 from .configuration import Configuration
 from langchain_core.runnables import RunnableConfig
 from .state import State
@@ -85,7 +85,7 @@ async def answer_question(state: State, config: RunnableConfig) -> Dict[str, Any
     Returns:
         Dict containing the final answer in the "final_answer" key.
     """
-    from app.utils.llm_service import get_user_fast_llm
+    from app.services.llm_service import get_user_fast_llm
     
     # Get configuration and relevant documents from configuration
     configuration = Configuration.from_runnable_config(config)

surfsense_backend/app/agents/researcher/state.py

@@ -5,7 +5,7 @@ from __future__ import annotations
 from dataclasses import dataclass, field
 from typing import List, Optional, Any
 from sqlalchemy.ext.asyncio import AsyncSession
-from app.utils.streaming_service import StreamingService
+from app.services.streaming_service import StreamingService
 
 @dataclass
 class State:

surfsense_backend/app/agents/researcher/sub_section_writer/nodes.py

@@ -2,7 +2,7 @@ from .configuration import Configuration
 from langchain_core.runnables import RunnableConfig
 from .state import State
 from typing import Any, Dict
-from app.utils.reranker_service import RerankerService
+from app.services.reranker_service import RerankerService
 from .prompts import get_citation_system_prompt, get_no_documents_system_prompt
 from langchain_core.messages import HumanMessage, SystemMessage
 from .configuration import SubSectionType
@@ -91,7 +91,7 @@ async def write_sub_section(state: State, config: RunnableConfig) -> Dict[str, A
     Returns:
         Dict containing the final answer in the "final_answer" key.
     """
-    from app.utils.llm_service import get_user_fast_llm
+    from app.services.llm_service import get_user_fast_llm
     
     # Get configuration and relevant documents from configuration
     configuration = Configuration.from_runnable_config(config)

surfsense_backend/app/services/__init__.py

@@ -0,0 +1 @@
+# Services package 

surfsense_backend/app/services/query_service.py

@@ -1,7 +1,7 @@
 import datetime
 from langchain.schema import HumanMessage, SystemMessage, AIMessage
 from app.config import config
-from app.utils.llm_service import get_user_strategic_llm
+from app.services.llm_service import get_user_strategic_llm
 from sqlalchemy.ext.asyncio import AsyncSession
 from typing import Any, List, Optional
 

surfsense_backend/app/tasks/background_tasks.py

@@ -7,7 +7,7 @@ from app.schemas import ExtensionDocumentContent
 from app.config import config
 from app.prompts import SUMMARY_PROMPT_TEMPLATE
 from app.utils.document_converters import convert_document_to_markdown, generate_content_hash
-from app.utils.llm_service import get_user_long_context_llm
+from app.services.llm_service import get_user_long_context_llm
 from langchain_core.documents import Document as LangChainDocument
 from langchain_community.document_loaders import FireCrawlLoader, AsyncChromiumLoader
 from langchain_community.document_transformers import MarkdownifyTransformer

surfsense_backend/app/tasks/connectors_indexing_tasks.py

@@ -6,7 +6,7 @@ from datetime import datetime, timedelta, timezone
 from app.db import Document, DocumentType, Chunk, SearchSourceConnector, SearchSourceConnectorType, SearchSpace
 from app.config import config
 from app.prompts import SUMMARY_PROMPT_TEMPLATE
-from app.utils.llm_service import get_user_long_context_llm
+from app.services.llm_service import get_user_long_context_llm
 from app.connectors.slack_history import SlackHistory
 from app.connectors.notion_history import NotionHistoryConnector
 from app.connectors.github_connector import GitHubConnector

surfsense_backend/app/tasks/stream_connector_search_results.py

@@ -3,7 +3,7 @@ from uuid import UUID
 
 from app.agents.researcher.graph import graph as researcher_graph
 from app.agents.researcher.state import State
-from app.utils.streaming_service import StreamingService
+from app.services.streaming_service import StreamingService
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.agents.researcher.configuration import SearchMode