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",
@@ -593,35 +593,26 @@ end
 
 local function playChunkOnSpeakers(samples, volume, playSeq)
     if not Peripherals.speakers or #Peripherals.speakers == 0 then return false end
-    local controller = Peripherals.speakers[1]
-    if controller and type(controller.playAudioAll) == "function" then
-        while true do
-            if shouldStop(playSeq) then return false end
-            local ok = false
-            pcall(function()
-                ok = controller.playAudioAll(samples, volume)
-            end)
-            if ok then break end
-            local ev = { os.pullEvent() }
-            if ev[1] == "audio_interrupt" and tonumber(ev[2]) and tonumber(ev[2]) >= playSeq then
-                return false
-            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
 
+    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()
-                ok = sp.playAudio(samples, volume)
+                if type(sp.playAudio) == "function" then
+                    ok = sp.playAudio(samples, volume)
+                end
             end)
-            if ok then pending[name] = nil end
+            if ok then
+                usedNativePath = true
+                pending[name] = nil
+            end
         end
         if next(pending) then
             local ev = { os.pullEvent() }
@@ -630,6 +621,28 @@ local function playChunkOnSpeakers(samples, volume, playSeq)
             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
+                pcall(function()
+                    ok = controller.playAudioAll(samples, volume)
+                end)
+                if ok then break end
+                local ev = { os.pullEvent() }
+                if ev[1] == "audio_interrupt" and tonumber(ev[2]) and tonumber(ev[2]) >= playSeq then
+                    return false
+                end
+            end
+        else
+            return false
+        end
     end
 
     local waiting = {}