feat: add recurrence_rule to LLM tools; list_tasks status accepts list + cancelled

src/fabledassistant/services/tools.py

@@ -105,6 +105,19 @@ _CORE_TOOLS = [
                         "type": "boolean",
                         "description": "Set to true only when the user has explicitly confirmed creation after being warned about a similar existing task.",
                     },
+                    "recurrence_rule": {
+                        "type": "object",
+                        "description": (
+                            "Optional recurrence schedule so the task repeats automatically. Two forms:\n"
+                            "  Interval — repeat every N units from the due date:\n"
+                            '    {"type": "interval", "every": 3, "unit": "month"}\n'
+                            "  unit options: day | week | month | year\n"
+                            "  Calendar/monthly — specific day each month:\n"
+                            '    {"type": "calendar", "unit": "month", "day_of_month": 1}\n'
+                            "  Calendar/annual — specific day each year:\n"
+                            '    {"type": "calendar", "unit": "year", "day_of_month": 15, "month": 6}'
+                        ),
+                    },
                 },
                 "required": ["title"],
             },
@@ -179,8 +192,8 @@ _CORE_TOOLS = [
                     },
                     "status": {
                         "type": "string",
-                        "enum": ["todo", "in_progress", "done"],
+                        "enum": ["todo", "in_progress", "done", "cancelled"],
-                        "description": "New task status. Use to mark a task done, start it, etc.",
+                        "description": "New task status. Use to mark a task done, start it, cancel it, etc.",
                     },
                     "priority": {
                         "type": "string",
@@ -205,6 +218,13 @@ _CORE_TOOLS = [
                         "type": "string",
                         "description": "Optional project name to assign this note/task to (set to empty string to remove project)",
                     },
+                    "recurrence_rule": {
+                        "type": "object",
+                        "description": (
+                            "Set or update the recurrence schedule. Pass null to remove recurrence. "
+                            "Same format as create_task recurrence_rule."
+                        ),
+                    },
                 },
                 "required": ["query"],
             },
@@ -353,9 +373,16 @@ _CORE_TOOLS = [
                 "type": "object",
                 "properties": {
                     "status": {
-                        "type": "string",
+                        "type": "array",
-                        "enum": ["todo", "in_progress", "done"],
+                        "items": {
-                        "description": "Filter by task status",
+                            "type": "string",
+                            "enum": ["todo", "in_progress", "done", "cancelled"],
+                        },
+                        "description": (
+                            "Filter by one or more task statuses. "
+                            'Example: ["todo", "in_progress"] to list all active tasks. '
+                            "Omit to return tasks of any status."
+                        ),
                     },
                     "priority": {
                         "type": "string",