Updated the task view and backend to handle more like a routine

Provider/main/todo.hpp

@@ -5,14 +5,24 @@
 #include "types.hpp"
 #include "user.hpp"
 
+enum task_period_t : uint8
+{
+  PERIOD_MORNING = 0x01,   // bit 0
+  PERIOD_AFTERNOON = 0x02, // bit 1
+  PERIOD_EVENING = 0x04,   // bit 2
+  PERIOD_ALL_DAY = 0x07    // all bits
+};
+
 struct task_t
 {
-  uint16 id;      // Auto-assigned (1–65535, 0 = empty slot)
-  uint8 user_id;  // Owner (matches user_t.id)
-  char title[64]; // Task description
-  int64 due_date; // Unix timestamp (seconds)
-  bool completed; // Done flag
-  bool active;    // Slot in use
+  char title[64];     // Task description
+  int64 due_date;     // Unix timestamp (seconds) - used when recurrence is 0
+  uint16 id;          // Auto-assigned (1–65535, 0 = empty slot)
+  uint8 user_id;      // Owner (matches user_t.id)
+  uint8 recurrence;   // Bitmask: bit0=Mon, bit1=Tue, ..., bit6=Sun. 0=none
+  uint8 period : 3;   // Bitmask: bit0=Morning, bit1=Afternoon, bit2=Evening
+  bool completed : 1; // Done flag
+  bool active : 1;    // Slot in use
 };
 
 constexpr int MAX_TASKS = 32;