Claude opus authored everything to make the user and task work. First iteration

Provider/main/api/users/store.cpp

@@ -0,0 +1,56 @@
+// User data store: CRUD helpers and seed data
+
+#include "api/users/store.hpp"
+
+// Find a user by ID, returns nullptr if not found
+internal user_t *find_user(uint8 id)
+{
+  for (int i = 0; i < MAX_USERS; i++)
+  {
+    if (g_Users[i].active && g_Users[i].id == id)
+    {
+      return &g_Users[i];
+    }
+  }
+  return nullptr;
+}
+
+// Add a user, returns pointer to new user or nullptr if full
+internal user_t *add_user(const char *name)
+{
+  for (int i = 0; i < MAX_USERS; i++)
+  {
+    if (!g_Users[i].active)
+    {
+      g_Users[i].id = g_NextUserId++;
+      strlcpy(g_Users[i].name, name, sizeof(g_Users[i].name));
+      g_Users[i].active = true;
+      return &g_Users[i];
+    }
+  }
+  return nullptr;
+}
+
+// Remove a user by ID, returns true if found and removed
+internal bool remove_user(uint8 id)
+{
+  for (int i = 0; i < MAX_USERS; i++)
+  {
+    if (g_Users[i].active && g_Users[i].id == id)
+    {
+      g_Users[i].active = false;
+      g_Users[i].id = 0;
+      g_Users[i].name[0] = '\0';
+      return true;
+    }
+  }
+  return false;
+}
+
+// Populate dummy users on boot for development iteration
+internal void seed_users()
+{
+  add_user("Alice");
+  add_user("Bob");
+  add_user("Charlie");
+}