feat: Implement wireless home position sync and set functionality for turtles

turtle.lua

@@ -65,30 +65,40 @@ local function updatePosition()
     return false
 end
 
--- Sync home position with server
+-- Sync home position with server (via wireless broadcast)
 local function syncHomeWithServer()
-    if not http then
-        print("HTTP not available, can't sync with server")
-        return false
-    end
+    -- Request home position from server via webbridge
+    print("Requesting home position from server...")
+    modem.transmit(CHANNEL_SEND, CHANNEL_RECEIVE, {
+        type = "request_home",
+        turtleID = os.getComputerID()
+    })
     
-    local url = "http://webbridge:3001/api/turtle/" .. os.getComputerID() .. "/home"
-    local response = http.get(url)
-    
-    if response then
-        local data = textutils.unserializeJSON(response.readAll())
-        response.close()
+    -- Wait for response (with timeout)
+    local timeout = os.startTimer(3)
+    while true do
+        local event, side, channel, replyChannel, message = os.pullEvent()
         
-        if data and data.homePosition then
-            state.homePosition = data.homePosition
-            print("📍 Synced home from server:", textutils.serialize(data.homePosition))
-            return true
+        if event == "timer" and side == timeout then
+            print("⚠️  Server sync timeout")
+            return false
+        elseif event == "modem_message" and channel == CHANNEL_RECEIVE then
+            if type(message) == "table" and message.type == "home_position" and message.turtleID == os.getComputerID() then
+                os.cancelTimer(timeout)
+                if message.homePosition then
+                    state.homePosition = message.homePosition
+                    print("📍 Synced home from server:", textutils.serialize(message.homePosition))
+                    return true
+                else
+                    print("No home position on server")
+                    return false
+                end
+            end
         end
     end
-    return false
 end
 
--- Set home position (server-authoritative)
+-- Set home position (server-authoritative via wireless)
 local function setHome()
     print("Setting home position...")
     if not updatePosition() then
@@ -96,33 +106,31 @@ local function setHome()
         return false
     end
     
-    -- Send to server
-    if http then
-        local url = "http://webbridge:3001/api/turtle/" .. os.getComputerID() .. "/home"
-        local response = http.post(url, textutils.serializeJSON({
-            position = state.position
-        }), {["Content-Type"] = "application/json"})
+    -- Send to server via wireless
+    modem.transmit(CHANNEL_SEND, CHANNEL_RECEIVE, {
+        type = "set_home",
+        turtleID = os.getComputerID(),
+        position = state.position
+    })
+    
+    -- Wait for confirmation
+    local timeout = os.startTimer(3)
+    while true do
+        local event, side, channel, replyChannel, message = os.pullEvent()
         
-        if response then
-            local data = textutils.unserializeJSON(response.readAll())
-            response.close()
-            
-            if data and data.success then
-                state.homePosition = data.homePosition
+        if event == "timer" and side == timeout then
+            print("⚠️  Server response timeout, using local home")
+            state.homePosition = state.position
+            return true
+        elseif event == "modem_message" and channel == CHANNEL_RECEIVE then
+            if type(message) == "table" and message.type == "home_set_confirm" and message.turtleID == os.getComputerID() then
+                os.cancelTimer(timeout)
+                state.homePosition = message.homePosition
                 print("✅ Home set at:", textutils.serialize(state.homePosition))
                 return true
             end
         end
     end
-    
-    -- Fallback to local storage if server unavailable
-    state.homePosition = {
-        x = state.position.x,
-        y = state.position.y,
-        z = state.position.z
-    }
-    print("⚠️  Home set locally (server unavailable)")
-    return true
 end
 
 -- Movement tracking