feat: add support for editing the created field in tasks

Author: ErikBjare

scripts/tasks.py

@@ -1183,7 +1183,7 @@ def resolve_tasks(
     "set_fields",
     type=(str, str),
     multiple=True,
-    help="Set a field value (state, priority)",
+    help="Set a field value (state, priority, created)",
 )
 @click.option(
     "--add",
@@ -1205,10 +1205,17 @@ def edit(task_ids, set_fields, add_fields, remove_fields):
     Examples:
         tasks edit task-123 --set state active
         tasks edit task-123 --set priority high
+        tasks edit task-123 --set created 2025-05-05T10:00:00+02:00
         tasks edit task-123 --add depends other-task
         tasks edit task-123 --add tag feature
         tasks edit task-123 --remove tag wip
         tasks edit task-123 --set state active --add tag feature --add depends other-task
+
+    Date formats:
+        The created field accepts ISO format dates:
+        - Date only: 2025-05-05
+        - Date and time: 2025-05-05T10:00:00
+        - With timezone: 2025-05-05T10:00:00+02:00
     """
     console = Console()
     repo_root = find_repo_root(Path.cwd())
@@ -1232,9 +1239,9 @@ def edit(task_ids, set_fields, add_fields, remove_fields):
 
     # Validate set operations
     for field, value in set_fields:
-        if field not in ("state", "priority"):
+        if field not in ("state", "priority", "created"):
             console.print(
-                f"[red]Cannot set field: {field}. Use --set with state or priority.[/]"
+                f"[red]Cannot set field: {field}. Use --set with state, priority, or created.[/]"
             )
             return
 
@@ -1246,6 +1253,17 @@ def edit(task_ids, set_fields, add_fields, remove_fields):
             if value not in ("high", "medium", "low", "none"):
                 console.print(f"[red]Invalid priority: {value}[/]")
                 return
+        elif field == "created":
+            try:
+                # Parse and validate the date format
+                created_dt = datetime.fromisoformat(value)
+                # Convert to string format for storage
+                value = created_dt.isoformat()
+            except ValueError:
+                console.print(
+                    "[red]Invalid created date format. Use ISO format (YYYY-MM-DD[THH:MM:SS+HH:MM])[/]"
+                )
+                return
 
         changes.append(("set", field, value))