Split out event type SIGs, and do other enum conversions. Closes #138

data/sig.py

@@ -1,5 +1,7 @@
 from dataclasses import dataclass, field
 
+from core.enums import SIGType
+
 
 @dataclass
 class SIG:
@@ -15,16 +17,18 @@ class SIG:
     name: str
     # Description, e.g. "Towers on the Air"
     description: str
-    # SIG names as they might appear in cluster spot comments, e.g. ["TOTA"]
-    comment_names: list[str] = field(default_factory=list)
-    # Regex matcher for references, e.g. for POTA r"[A-Z]{2}\-\d+".
-    ref_regex: str | None = None
+    # Type, either Worldwide, Regional or Event. Used for sorting in the web UI.
+    sig_type: SIGType
     # Identifies that the SIG's reference ID structure defined by its regex is unique across all programmes and
     # anything else we expect a user to put in a spot comment, and therefore we can pull references out of
     # spot comments without also needing to see the SIG name first. For example, "OHFF-1234" or "B/G-1234" are
     # obviously WWFF and WWBOTA, nothing else looks like those. But "SZ09" could be WAB or Tiles, "GB1234" could
     # conceivably be POTA or ILLW, etc.
-    refs_globally_unique: bool = False
+    refs_globally_unique: bool
+    # SIG names as they might appear in cluster spot comments, e.g. ["TOTA"]
+    comment_names: list[str] = field(default_factory=list)
+    # Regex matcher for references, e.g. for POTA r"[A-Z]{2}\-\d+".
+    ref_regex: str | None = None
     # Icon to use in the UI when referencing this SIG. Chosen from the Font Awesome set.
     icon: str | None = None
     # Emoji flag for the country or region where this SIG is relevant, if any. If None, this implies the SIG is in