Consolidate connector metadata into NamedTuple and use helper functions

- Create ConnectorMetadata NamedTuple to consolidate emoji, result_name, and friendly_name
- Replace three separate dictionaries with single CONNECTOR_METADATA dict
- Update helper functions to use consolidated structure
- Replace direct dict access in nodes.py with helper functions
- Remove unused CONNECTOR_EMOJIS and CONNECTOR_RESULT_NAMES imports
- Add default metadata for unknown connectors

Addresses PR #16 review feedback for unused imports and data consolidation

surfsense_backend/app/agents/researcher/nodes.py

@@ -21,8 +21,6 @@ from .prompts import get_further_questions_system_prompt
 from .qna_agent.graph import graph as qna_agent_graph
 from .state import State
 from .utils import (
-    CONNECTOR_EMOJIS,
-    CONNECTOR_RESULT_NAMES,
     get_connector_emoji,
     get_connector_friendly_name,
     get_connector_result_name,
@@ -843,8 +841,8 @@ async def fetch_relevant_documents(
 
             # Stream found document count
             if streaming_service and writer and chunks:
-                emoji = CONNECTOR_EMOJIS.get(connector, "📄")
-                result_name = CONNECTOR_RESULT_NAMES.get(connector, "chunks")
+                emoji = get_connector_emoji(connector)
+                result_name = get_connector_result_name(connector)
                 writer(
                     {
                         "yield_value": streaming_service.format_terminal_info_delta(

surfsense_backend/app/agents/researcher/utils.py

@@ -14,93 +14,60 @@ class DocumentTokenInfo(NamedTuple):
     token_count: int
 
 
+class ConnectorMetadata(NamedTuple):
+    """Consolidated metadata for a connector type."""
+
+    emoji: str
+    result_name: str
+    friendly_name: str
+
+
 # Centralized connector metadata - single source of truth
-CONNECTOR_EMOJIS = {
-    "YOUTUBE_VIDEO": "📹",
-    "EXTENSION": "🧩",
-    "CRAWLED_URL": "🌐",
-    "FILE": "📄",
-    "SLACK_CONNECTOR": "💬",
-    "NOTION_CONNECTOR": "📘",
-    "GITHUB_CONNECTOR": "🐙",
-    "LINEAR_CONNECTOR": "📊",
-    "TAVILY_API": "🔍",
-    "SEARXNG_API": "🌐",
-    "LINKUP_API": "🔗",
-    "BAIDU_SEARCH_API": "🇨🇳",
-    "DISCORD_CONNECTOR": "🗨️",
-    "JIRA_CONNECTOR": "🎫",
-    "GOOGLE_CALENDAR_CONNECTOR": "📅",
-    "AIRTABLE_CONNECTOR": "🗃️",
-    "GOOGLE_GMAIL_CONNECTOR": "📧",
-    "CONFLUENCE_CONNECTOR": "📚",
-    "CLICKUP_CONNECTOR": "📋",
-    "LUMA_CONNECTOR": "🎯",
-    "ELASTICSEARCH_CONNECTOR": "🔎",
+# All connector information is consolidated in one place for easier maintenance
+CONNECTOR_METADATA: dict[str, ConnectorMetadata] = {
+    "YOUTUBE_VIDEO": ConnectorMetadata("📹", "YouTube chunks", "YouTube"),
+    "EXTENSION": ConnectorMetadata("🧩", "Browser Extension chunks", "Browser Extension"),
+    "CRAWLED_URL": ConnectorMetadata("🌐", "Web Pages chunks", "Web Pages"),
+    "FILE": ConnectorMetadata("📄", "Files chunks", "Files"),
+    "SLACK_CONNECTOR": ConnectorMetadata("💬", "Slack messages", "Slack"),
+    "NOTION_CONNECTOR": ConnectorMetadata("📘", "Notion pages/blocks", "Notion"),
+    "GITHUB_CONNECTOR": ConnectorMetadata("🐙", "GitHub files/issues", "GitHub"),
+    "LINEAR_CONNECTOR": ConnectorMetadata("📊", "Linear issues", "Linear"),
+    "TAVILY_API": ConnectorMetadata("🔍", "Web Search results", "Tavily Search"),
+    "SEARXNG_API": ConnectorMetadata("🌐", "SearxNG results", "SearxNG Search"),
+    "LINKUP_API": ConnectorMetadata("🔗", "Linkup results", "Linkup Search"),
+    "BAIDU_SEARCH_API": ConnectorMetadata("🇨🇳", "Baidu Search results", "Baidu Search"),
+    "DISCORD_CONNECTOR": ConnectorMetadata("🗨️", "Discord messages", "Discord"),
+    "JIRA_CONNECTOR": ConnectorMetadata("🎫", "Jira issues", "Jira"),
+    "GOOGLE_CALENDAR_CONNECTOR": ConnectorMetadata("📅", "calendar events", "Google Calendar"),
+    "AIRTABLE_CONNECTOR": ConnectorMetadata("🗃️", "Airtable records", "Airtable"),
+    "GOOGLE_GMAIL_CONNECTOR": ConnectorMetadata("📧", "Gmail messages", "Gmail"),
+    "CONFLUENCE_CONNECTOR": ConnectorMetadata("📚", "Confluence pages", "Confluence"),
+    "CLICKUP_CONNECTOR": ConnectorMetadata("📋", "ClickUp tasks", "ClickUp"),
+    "LUMA_CONNECTOR": ConnectorMetadata("🎯", "Luma events", "Luma"),
+    "ELASTICSEARCH_CONNECTOR": ConnectorMetadata("🔎", "Elasticsearch chunks", "Elasticsearch"),
 }
 
-CONNECTOR_RESULT_NAMES = {
-    "YOUTUBE_VIDEO": "YouTube chunks",
-    "EXTENSION": "Browser Extension chunks",
-    "CRAWLED_URL": "Web Pages chunks",
-    "FILE": "Files chunks",
-    "SLACK_CONNECTOR": "Slack messages",
-    "NOTION_CONNECTOR": "Notion pages/blocks",
-    "GITHUB_CONNECTOR": "GitHub files/issues",
-    "LINEAR_CONNECTOR": "Linear issues",
-    "TAVILY_API": "Web Search results",
-    "SEARXNG_API": "SearxNG results",
-    "LINKUP_API": "Linkup results",
-    "BAIDU_SEARCH_API": "Baidu Search results",
-    "DISCORD_CONNECTOR": "Discord messages",
-    "JIRA_CONNECTOR": "Jira issues",
-    "GOOGLE_CALENDAR_CONNECTOR": "calendar events",
-    "AIRTABLE_CONNECTOR": "Airtable records",
-    "GOOGLE_GMAIL_CONNECTOR": "Gmail messages",
-    "CONFLUENCE_CONNECTOR": "Confluence pages",
-    "CLICKUP_CONNECTOR": "ClickUp tasks",
-    "LUMA_CONNECTOR": "Luma events",
-    "ELASTICSEARCH_CONNECTOR": "Elasticsearch chunks",
-}
-
-CONNECTOR_FRIENDLY_NAMES = {
-    "YOUTUBE_VIDEO": "YouTube",
-    "EXTENSION": "Browser Extension",
-    "CRAWLED_URL": "Web Pages",
-    "FILE": "Files",
-    "SLACK_CONNECTOR": "Slack",
-    "NOTION_CONNECTOR": "Notion",
-    "GITHUB_CONNECTOR": "GitHub",
-    "LINEAR_CONNECTOR": "Linear",
-    "JIRA_CONNECTOR": "Jira",
-    "CONFLUENCE_CONNECTOR": "Confluence",
-    "GOOGLE_CALENDAR_CONNECTOR": "Google Calendar",
-    "DISCORD_CONNECTOR": "Discord",
-    "TAVILY_API": "Tavily Search",
-    "SEARXNG_API": "SearxNG Search",
-    "LINKUP_API": "Linkup Search",
-    "BAIDU_SEARCH_API": "Baidu Search",
-    "AIRTABLE_CONNECTOR": "Airtable",
-    "GOOGLE_GMAIL_CONNECTOR": "Gmail",
-    "CLICKUP_CONNECTOR": "ClickUp",
-    "LUMA_CONNECTOR": "Luma",
-    "ELASTICSEARCH_CONNECTOR": "Elasticsearch",
-}
+# Default metadata for unknown connectors
+_DEFAULT_METADATA = ConnectorMetadata("🔎", "chunks", "Unknown")
 
 
 def get_connector_emoji(connector_name: str) -> str:
     """Get an appropriate emoji for a connector type."""
-    return CONNECTOR_EMOJIS.get(connector_name, "🔎")
+    metadata = CONNECTOR_METADATA.get(connector_name)
+    return metadata.emoji if metadata else _DEFAULT_METADATA.emoji
 
 
 def get_connector_friendly_name(connector_name: str) -> str:
     """Convert technical connector IDs to user-friendly names."""
-    return CONNECTOR_FRIENDLY_NAMES.get(connector_name, connector_name)
+    metadata = CONNECTOR_METADATA.get(connector_name)
+    return metadata.friendly_name if metadata else connector_name
 
 
 def get_connector_result_name(connector_name: str) -> str:
     """Get the result type name for a connector (e.g., 'Slack messages')."""
-    return CONNECTOR_RESULT_NAMES.get(connector_name, "chunks")
+    metadata = CONNECTOR_METADATA.get(connector_name)
+    return metadata.result_name if metadata else _DEFAULT_METADATA.result_name
 
 
 def convert_langchain_messages_to_dict(