Generalize email system with invoice workflow and Stiftungsgeschichte category

- Rename DestinataerEmailEingang → EmailEingang with category support
  (destinataer, rechnung, land_pacht, stiftungsgeschichte, allgemein)
- Add invoice capture workflow: create Verwaltungskosten from email,
  link DMS documents as invoice attachments, track payment status
- Add Stiftungsgeschichte email category with auto-detection patterns
  (Ahnenforschung, Genealogie, Chronik, etc.) and DMS integration
- Update poll_emails task with category detection and DMS context mapping
- Show available history documents in Geschichte editor sidebar
- Consolidate DMS views, remove legacy dokument templates
- Update all detail/form templates for DMS document linking
- Add deploy.sh script and streamline compose.yml

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

app/stiftung/utils/config.py

@@ -30,25 +30,6 @@ def get_config(key, default=None, fallback_to_settings=True):
     return value if value is not None else default
 
 
-def get_paperless_config():
-    """
-    Get all Paperless-related configuration values
-
-    Returns:
-        dict: Dictionary containing all Paperless configuration
-    """
-    return {
-        "api_url": get_config("paperless_api_url"),
-        "api_token": get_config("paperless_api_token"),
-        "destinataere_tag": get_config("paperless_destinataere_tag"),
-        "destinataere_tag_id": get_config("paperless_destinataere_tag_id"),
-        "land_tag": get_config("paperless_land_tag"),
-        "land_tag_id": get_config("paperless_land_tag_id"),
-        "admin_tag": get_config("paperless_admin_tag"),
-        "admin_tag_id": get_config("paperless_admin_tag_id"),
-    }
-
-
 def set_config(key, value, **kwargs):
     """
     Set a configuration value
@@ -63,13 +44,3 @@ def set_config(key, value, **kwargs):
     """
     return AppConfiguration.set_setting(key, value, **kwargs)
 
-
-def is_paperless_configured():
-    """
-    Check if Paperless is properly configured
-
-    Returns:
-        bool: True if API URL and token are configured
-    """
-    config = get_paperless_config()
-    return bool(config["api_url"] and config["api_token"])