chore: remove ~100 unused imports across 55 files (#3016)

Automated cleanup via pyflakes + autoflake with manual review.

Changes:
- Removed unused stdlib imports (os, sys, json, pathlib.Path, etc.)
- Removed unused typing imports (List, Dict, Any, Optional, Tuple, Set, etc.)
- Removed unused internal imports (hermes_cli.auth, hermes_cli.config, etc.)
- Fixed cli.py: removed 8 shadowed banner imports (imported from hermes_cli.banner
  then immediately redefined locally — only build_welcome_banner is actually used)
- Added noqa comments to imports that appear unused but serve a purpose:
  - Re-exports (gateway/session.py SessionResetPolicy, tools/terminal_tool.py
    is_interrupted/_interrupt_event)
  - SDK presence checks in try/except (daytona, fal_client, discord)
  - Test mock targets (auxiliary_client.py Path, mcp_config.py get_hermes_home)

Zero behavioral changes. Full test suite passes (6162/6162, 2 pre-existing
streaming test failures unrelated to this change).

gateway/channel_directory.py

@@ -9,7 +9,6 @@ action="list" and for resolving human-friendly channel names to numeric IDs.
 import json
 import logging
 from datetime import datetime
-from pathlib import Path
 from typing import Any, Dict, List, Optional
 
 from hermes_cli.config import get_hermes_home
@@ -90,7 +89,7 @@ def _build_discord(adapter) -> List[Dict[str, str]]:
         return channels
 
     try:
-        import discord as _discord
+        import discord as _discord  # noqa: F401 — SDK presence check
     except ImportError:
         return channels
 
@@ -119,7 +118,6 @@ def _build_slack(adapter) -> List[Dict[str, str]]:
         return _build_from_sessions("slack")
 
     try:
-        import asyncio
         from tools.send_message_tool import _send_slack  # noqa: F401
         # Use the Slack Web API directly if available
     except Exception:

gateway/delivery.py

@@ -13,7 +13,6 @@ from pathlib import Path
 from datetime import datetime
 from dataclasses import dataclass
 from typing import Dict, List, Optional, Any, Union
-from enum import Enum
 
 from hermes_cli.config import get_hermes_home
 

gateway/hooks.py

@@ -21,8 +21,6 @@ Errors in hooks are caught and logged but never block the main pipeline.
 
 import asyncio
 import importlib.util
-import os
-from pathlib import Path
 from typing import Any, Callable, Dict, List, Optional
 
 import yaml

gateway/mirror.py

@@ -12,7 +12,6 @@ the full SessionStore machinery.
 import json
 import logging
 from datetime import datetime
-from pathlib import Path
 from typing import Optional
 
 from hermes_cli.config import get_hermes_home

gateway/platforms/discord.py

@@ -20,7 +20,7 @@ import threading
 import time
 from collections import defaultdict
 from pathlib import Path
-from typing import Callable, Dict, List, Optional, Any
+from typing import Callable, Dict, Optional, Any
 
 logger = logging.getLogger(__name__)
 

gateway/platforms/email.py

@@ -24,7 +24,6 @@ import re
 import smtplib
 import ssl
 import uuid
-from datetime import datetime
 from email.header import decode_header
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
@@ -454,7 +453,6 @@ class EmailAdapter(BasePlatformAdapter):
 
     async def send_typing(self, chat_id: str, metadata: Optional[Dict[str, Any]] = None) -> None:
         """Email has no typing indicator — no-op."""
-        pass
 
     async def send_image(
         self,

gateway/platforms/homeassistant.py

@@ -19,7 +19,7 @@ import os
 import time
 import uuid
 from datetime import datetime
-from typing import Any, Dict, List, Optional, Set
+from typing import Any, Dict, Optional, Set
 
 try:
     import aiohttp
@@ -435,7 +435,6 @@ class HomeAssistantAdapter(BasePlatformAdapter):
 
     async def send_typing(self, chat_id: str, metadata=None) -> None:
         """No typing indicator for Home Assistant."""
-        pass
 
     async def get_chat_info(self, chat_id: str) -> Dict[str, Any]:
         """Return basic info about the HA event channel."""

gateway/platforms/matrix.py

@@ -17,14 +17,13 @@ Environment variables:
 from __future__ import annotations
 
 import asyncio
-import json
 import logging
 import mimetypes
 import os
 import re
 import time
 from pathlib import Path
-from typing import Any, Dict, List, Optional, Set
+from typing import Any, Dict, Optional, Set
 
 from gateway.config import Platform, PlatformConfig
 from gateway.platforms.base import (

gateway/platforms/mattermost.py

@@ -20,7 +20,7 @@ import os
 import re
 import time
 from pathlib import Path
-from typing import Any, Dict, List, Optional, Tuple
+from typing import Any, Dict, List, Optional
 
 from gateway.config import Platform, PlatformConfig
 from gateway.platforms.base import (

gateway/platforms/slack.py

@@ -12,7 +12,7 @@ import asyncio
 import logging
 import os
 import re
-from typing import Dict, List, Optional, Any
+from typing import Dict, Optional, Any
 
 try:
     from slack_bolt.async_app import AsyncApp
@@ -37,8 +37,6 @@ from gateway.platforms.base import (
     SendResult,
     SUPPORTED_DOCUMENT_TYPES,
     cache_document_from_bytes,
-    cache_image_from_url,
-    cache_audio_from_url,
 )
 
 

gateway/platforms/sms.py

@@ -17,12 +17,11 @@ Gateway-specific env vars:
 
 import asyncio
 import base64
-import json
 import logging
 import os
 import re
 import urllib.parse
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, Optional
 
 from gateway.config import Platform, PlatformConfig
 from gateway.platforms.base import (

gateway/platforms/telegram.py

@@ -11,7 +11,7 @@ import asyncio
 import logging
 import os
 import re
-from typing import Dict, List, Optional, Any
+from typing import Dict, Optional, Any
 
 logger = logging.getLogger(__name__)
 

gateway/platforms/whatsapp.py

@@ -16,7 +16,6 @@ with different backends via a bridge pattern.
 """
 
 import asyncio
-import json
 import logging
 import os
 import platform
@@ -24,7 +23,7 @@ import subprocess
 
 _IS_WINDOWS = platform.system() == "Windows"
 from pathlib import Path
-from typing import Dict, List, Optional, Any
+from typing import Dict, Optional, Any
 
 from hermes_cli.config import get_hermes_home
 

gateway/run.py

@@ -220,7 +220,7 @@ from gateway.session import (
     build_session_context_prompt,
     build_session_key,
 )
-from gateway.delivery import DeliveryRouter, DeliveryTarget
+from gateway.delivery import DeliveryRouter
 from gateway.platforms.base import BasePlatformAdapter, MessageEvent, MessageType
 
 logger = logging.getLogger(__name__)
@@ -2771,8 +2771,6 @@ class GatewayRunner:
         """Handle /model command - show or change the current model."""
         import yaml
         from hermes_cli.models import (
-            parse_model_input,
-            validate_requested_model,
             curated_models_for_provider,
             normalize_provider,
             _PROVIDER_LABELS,

gateway/session.py

@@ -16,7 +16,7 @@ import re
 import uuid
 from pathlib import Path
 from datetime import datetime, timedelta
-from dataclasses import dataclass, field
+from dataclasses import dataclass
 from typing import Dict, List, Optional, Any
 
 logger = logging.getLogger(__name__)
@@ -59,7 +59,7 @@ def _looks_like_phone(value: str) -> bool:
 from .config import (
     Platform,
     GatewayConfig,
-    SessionResetPolicy,
+    SessionResetPolicy,  # noqa: F401 — re-exported via gateway/__init__.py
     HomeChannel,
 )
 

gateway/sticker_cache.py

@@ -9,9 +9,7 @@ Cache location: ~/.hermes/sticker_cache.json
 """
 
 import json
-import os
 import time
-from pathlib import Path
 from typing import Optional
 
 from hermes_cli.config import get_hermes_home