fix(station): prefer native speaker.playAudio for decoded chunks

Bump the station build to v1.0.3 and send decoded WAV samples through each speaker's native playAudio path before falling back to controller.playAudioAll, with logs to show which output path was used.

station_broadcast.lua

@@ -2,7 +2,7 @@
 -- ============================================================================
 -- 1. Configuration & Constants
 -- ============================================================================
-local APP_VERSION_TEXT = "v1.0.2"
+local APP_VERSION_TEXT = "v1.0.3"
 
 local CONFIG = {
     CLOUD_URL = "ws://stabadmin.fse-media.group",
@@ -593,8 +593,41 @@ end
 
 local function playChunkOnSpeakers(samples, volume, playSeq)
     if not Peripherals.speakers or #Peripherals.speakers == 0 then return false end
+    local pending = {}
+    for _, sp in ipairs(Peripherals.speakers) do
+        local name = peripheral.getName(sp)
+        if name then pending[name] = sp end
+    end
+
+    local usedNativePath = false
+    while next(pending) do
+        if shouldStop(playSeq) then return false end
+        for name, sp in pairs(pending) do
+            local ok = false
+            pcall(function()
+                if type(sp.playAudio) == "function" then
+                    ok = sp.playAudio(samples, volume)
+                end
+            end)
+            if ok then
+                usedNativePath = true
+                pending[name] = nil
+            end
+        end
+        if next(pending) then
+            local ev = { os.pullEvent() }
+            if ev[1] == "audio_interrupt" and tonumber(ev[2]) and tonumber(ev[2]) >= playSeq then
+                return false
+            end
+        end
+    end
+
+    if usedNativePath then
+        Utils.log("INFO", string.format("Audio samples queued via native speaker.playAudio: samples=%d", #samples))
+    else
         local controller = Peripherals.speakers[1]
         if controller and type(controller.playAudioAll) == "function" then
+            Utils.log("WARN", "Falling back to controller.playAudioAll for decoded samples")
             while true do
                 if shouldStop(playSeq) then return false end
                 local ok = false
@@ -608,29 +641,9 @@ local function playChunkOnSpeakers(samples, volume, playSeq)
                 end
             end
         else
-    local pending = {}
-    for _, sp in ipairs(Peripherals.speakers) do
-        local name = peripheral.getName(sp)
-        if name then pending[name] = sp end
-    end
-
-    while next(pending) do
-        if shouldStop(playSeq) then return false end
-        for name, sp in pairs(pending) do
-            local ok = false
-            pcall(function()
-                ok = sp.playAudio(samples, volume)
-            end)
-            if ok then pending[name] = nil end
-        end
-        if next(pending) then
-            local ev = { os.pullEvent() }
-            if ev[1] == "audio_interrupt" and tonumber(ev[2]) and tonumber(ev[2]) >= playSeq then
             return false
         end
     end
-    end
-    end
 
     local waiting = {}
     for _, sp in ipairs(Peripherals.speakers) do