fix(tasks): send recurrency/reminder as flat top-level params (v1.1.1)

FiZ Ai() encoder does not support nested objects — recurrencyDescriptor
and reminder fields must be top-level params (recurrency=WEEKLY, not
recurrencyDescriptor={recurrency:WEEKLY}). Same fix for reminder fields.
SPEC.md and CLAUDE.md updated to document the flat encoding.

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

src/mcp_familywall/server.py

@@ -1027,32 +1027,28 @@ def update_task(
     if list_id is not None:
         params["taskListId"] = list_id
 
-    recurrency_descriptor: dict[str, Any] = {}
+    # The FiZ Ai() encoder serialises all fields flat at the top level of the
+    # request body — nested objects are NOT supported.  recurrencyDescriptor and
+    # reminder fields must therefore be sent as plain top-level parameters.
     if clear_recurrency:
-        recurrency_descriptor["recurrency"] = "NONE"
+        params["recurrency"] = "NONE"
     elif recurrency is not None:
-        recurrency_descriptor["recurrency"] = recurrency
+        params["recurrency"] = recurrency
         if recurrency_interval is not None:
-            recurrency_descriptor["recurrencyInterval"] = recurrency_interval
+            params["recurrencyInterval"] = recurrency_interval
         if rrule is not None:
-            recurrency_descriptor["rrule"] = rrule
-    if recurrency_descriptor:
-        params["recurrencyDescriptor"] = recurrency_descriptor
+            params["rrule"] = rrule
 
     if clear_reminder:
-        params["reminder"] = {
-            "reminderUnit": "",
-            "reminderValue": 0,
-            "reminderType": "SNOOZE",
-            "localId": 0,
-        }
+        params["reminderUnit"] = ""
+        params["reminderValue"] = 0
+        params["reminderType"] = "SNOOZE"
+        params["localId"] = 0
     elif reminder_unit is not None and reminder_value is not None:
-        params["reminder"] = {
-            "reminderUnit": reminder_unit,
-            "reminderValue": reminder_value,
-            "reminderType": "SNOOZE",
-            "localId": 0,
-        }
+        params["reminderUnit"] = reminder_unit
+        params["reminderValue"] = reminder_value
+        params["reminderType"] = "SNOOZE"
+        params["localId"] = 0
 
     try:
         _authenticated_call("taskupdate2", params)