ADD - expand phone application platform

Add the Companies app, resilient call handling, custom app registry, vendor compatibility, storage policies, frontend bridge, tests, documentation, config, locale, and SQL migrations.

sky_phone/source/server/sim.lua

@@ -27,6 +27,9 @@ end
 local function reserve_sim(sim_type)
     local sim_id
     local number = SkyPhoneSimNumber.Reserve(uuid, function(candidate)
+        if SkyPhoneCompanies.IsServiceNumber(candidate) then
+            return false
+        end
         sim_id = uuid()
         local result = Bridge.Database.Query([[
             INSERT IGNORE INTO `sky_phone_sims` (`id`, `phone_number`, `sim_type`)
@@ -85,6 +88,15 @@ local function ensure_sim(source, slot, sim_type)
     if metadata.sim_id and (not sim or sim.sim_type ~= sim_type or sim.phone_number ~= metadata.phone_number) then
         return nil, "invalid_sim"
     end
+    if sim and SkyPhoneCompanies.IsServiceNumber(sim.phone_number) then
+        Bridge.Debug(
+            "error",
+            "[sky_phone] SIM %s uses reserved company service number %s.",
+            tostring(sim.id),
+            tostring(sim.phone_number)
+        )
+        return nil, "invalid_sim"
+    end
     if not sim then
         sim = reserve_sim(sim_type)
         if not Bridge.Inventory.SetSlotMetadata(source, slot.slot, sim_metadata(sim)) then
@@ -129,6 +141,16 @@ local function insert_sim(source, phone_imei, confirmed)
         pending_insertions[source] = nil
         return { success = false, error = "sim_request_expired" }
     end
+    if SkyPhoneCompanies.IsServiceNumber(pending.sim.phone_number) then
+        pending_insertions[source] = nil
+        Bridge.Debug(
+            "error",
+            "[sky_phone] Refused to insert SIM %s with reserved company service number %s.",
+            tostring(pending.sim.id),
+            tostring(pending.sim.phone_number)
+        )
+        return { success = false, error = "invalid_sim" }
+    end
     local sim_slot = Bridge.Inventory.GetSlot(source, pending.slot)
     if not sim_slot or sim_slot.name ~= pending.item_name or not sim_slot.metadata
         or sim_slot.metadata.sim_id ~= pending.sim.id then
@@ -203,6 +225,7 @@ local function insert_sim(source, phone_imei, confirmed)
     pending_insertions[source] = nil
     operation_locks[source] = nil
     if old_sim then
+        SkyPhoneCompanies.ClearCallAvailability(source)
         SkyPhoneCalls.EndForSim(old_sim.id, "sim_removed")
     end
     SkyPhone.RefreshDevice(phone_imei)
@@ -304,6 +327,7 @@ Bridge.Callbacks.Register("sky_phone:sim:eject", function(source)
         return { success = false, error = "request_failed" }
     end
     operation_locks[source] = nil
+    SkyPhoneCompanies.ClearCallAvailability(source)
     SkyPhoneCalls.EndForSim(sim.id, "sim_removed")
     SkyPhone.RefreshDevice(session.imei)
     return { success = true }