Fix: Various small bugs found during typing updates (#14593)

* Fix: match Apple Mail tag colors case-insensitively

* Fix: reject OAuth callbacks with an unrecognized scope

* Fix: refuse to refresh OAuth tokens for non-OAuth accounts or missing refresh tokens

* Fix: parse datetime strings in the format_datetime filter and reject invalid ones

* Fix: reject a PAPERLESS_URL without a hostname

* Fix: report a database error in the system status instead of failing with a 500

* Fix: surface the database error when refreshing a document before moving its files

* Fix: report no unapplied migrations when the applied migrations cannot be read

* Fix: return the parsed value directly in format_datetime for typing

* Chore: annotate the paperless_dirs fixture in the refresh failure test

* Allow null for the latest_migration system status type

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Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>

src/documents/templating/filters.py

@@ -44,7 +44,10 @@ def localize_date(value: date | datetime | str, format: str, locale: str) -> str
 
 def format_datetime(value: str | datetime, format: str) -> str:
     if isinstance(value, str):
-        value = parse_date(value)
+        parsed = parse_datetime(value) or parse_date(value)
+        if parsed is None:
+            raise ValueError(f"Invalid date or datetime string: {value!r}")
+        return parsed.strftime(format=format)
     return value.strftime(format=format)