fix(announce): 修复进站预告音频终点站名字被跳过的问题

根因链:
- station_broadcast.lua 通过 BlockReader / CreateTarget 两个分支触发 train_approaching 发送时，只带 destination (中文名/站名)，未带 destCode；server 端只能走 getStationCodeFromName(destination) 正则解析，正则没匹配到就会得到 UNK → ch-UNK.wav / ja-UNK.wav 不存在 → 整条目的地段音频被 ffmpeg concat 跳过
- 对比 train_arrival (Peripherals.station 分支) 是有 destCode 字段的（由 Utils.getStationCode + schedule 解析得到），所以到站广播终点站名能正常播出，预告（走 Display/BlockReader 分支）不能
修复:
1. station_broadcast.lua 四处 train_approaching / train_alert Network.send 全部补 destCode = Utils.getStationCode(destination)：
   - L4053 (alert, blockreader) / L4091 (approach, blockreader)
   - L4221 (alert, createTarget) / L4257 (approach, createTarget)
2. server.js 新增 resolveStationAudioCode(rawCode, rawName) 三级兜底解析：
   - L1: 直接用 raw destCode（优先级最高，客户端算好的）
   - L2: 正则解析 destination 名字抽取 code（parens/dash/下划线模式）
   - L3: 把 destination 名拿去 findStationByFlexibleName 已注册站台表里 fuzzy 匹配，取其 code
   - 解析不到就打 WARN 日志，提示会跳过这一段
3. handleTrainApproaching / handleTrainArrival / handleTrainDeparture 三个 handler 的 destCode / nextCode 全部切到 resolveStationAudioCode 统一入口，不再各写一遍正则，所有预告/到站/发车音频用同一条解析链，保证结果一致
APP_VERSION_TEXT bump 到 v1.0.110

CloudServer/server.js

@@ -1963,6 +1963,39 @@ function ensureSilenceWav() {
     execSync(`ffmpeg -y -v quiet -f lavfi -i anullsrc=r=48000:cl=mono -t 1 -c:a pcm_s16le "${silence1sWavPath}"`);
 }
 
+function resolveStationAudioCode(rawCode, rawName) {
+    const code1 = String(rawCode || '').trim().toLowerCase().replace(/_/g, '-');
+    const name = String(rawName || '').trim();
+    const pick = (c) => {
+        if (!c) return null;
+        const v = String(c).trim().toLowerCase().replace(/_/g, '-');
+        return v && v !== 'unk' && v !== 'unknown' ? v : null;
+    };
+    // Level 1: raw destCode (already provided)
+    let result = pick(code1);
+    let levelHit = result ? 1 : 0;
+    // Level 2: extract from destination name string (parens / dash / pattern)
+    if (!result && name) {
+        const extracted = getStationCodeFromName(name);
+        result = pick(extracted);
+        if (result) levelHit = 2;
+    }
+    // Level 3: fuzzy match station name to registered stations and use their code
+    if (!result && name) {
+        const reg = findStationByFlexibleName(name);
+        if (reg && reg.code) {
+            result = pick(reg.code);
+            if (result) levelHit = 3;
+        }
+    }
+    if (result && (name || rawCode)) {
+        log('DEBUG', `[Station-Audio-Code] resolved destCode=${result} (level=${levelHit}) rawCode=${JSON.stringify(rawCode || null)} name=${JSON.stringify(name || null)}`);
+    } else {
+        log('WARN', `[Station-Audio-Code] FAILED to resolve station audio code: rawCode=${JSON.stringify(rawCode || null)} name=${JSON.stringify(name || null)} → sequence will skip this station audio (silence / missing wav)`);
+    }
+    return result || null;
+}
+
 function getOrCreateHlsStreamState(streamName) {
     if (!hlsStreams[streamName]) {
         hlsStreams[streamName] = {
@@ -2688,7 +2721,7 @@ function handleTrainApproaching(ws, data) {
     const finalPlatform = cleanPlatform || '1';
     
     const lineCode = data.lineCode || (stationCode ? stationCode.split('-')[0] : 'UNK');
-    const destCode = data.destCode || getStationCodeFromName(data.destination) || 'UNK';
+    const destCode = resolveStationAudioCode(data.destCode, data.destination) || 'UNK';
 
     log('INFO', `Train ${trainId} approaching ${stationName}. Broadcasting pre-arrival...`);
 
@@ -2804,9 +2837,10 @@ function handleTrainArrival(ws, data) {
     const finalPlatform = cleanPlatform || '1';
     
     const lineCode = data.lineCode || (stationCode ? stationCode.split('-')[0] : 'UNK');
-    const destCode = data.destCode || getStationCodeFromName(data.destination) || 'UNK';
+    const destCode = resolveStationAudioCode(data.destCode, data.destination) || 'UNK';
     const nextStationRaw = data.nextStation ? String(data.nextStation).trim() : '';
-    const nextCodeRaw = data.nextCode ? String(data.nextCode).trim() : (nextStationRaw ? getStationCodeFromName(nextStationRaw) : '');
+    const nextCodeRaw = resolveStationAudioCode(data.nextCode, nextStationRaw) ||
+        (nextStationRaw ? getStationCodeFromName(nextStationRaw) : '');
     const hasNextStation = nextStationRaw && nextStationRaw !== '' && nextCodeRaw && nextCodeRaw !== 'UNK' && nextCodeRaw !== '';
     const finalNextCode = hasNextStation ? nextCodeRaw : null;
 
@@ -2885,9 +2919,10 @@ function handleTrainDeparture(ws, data) {
     const beep = data.departureBeep || data.beep || 'fc1';
 
     const lineCode = data.lineCode || (stationCode ? stationCode.split('-')[0] : 'UNK');
-    const destCode = data.destCode || getStationCodeFromName(data.destination) || 'UNK';
+    const destCode = resolveStationAudioCode(data.destCode, data.destination) || 'UNK';
     const nextStationRaw = data.nextStation ? String(data.nextStation).trim() : '';
-    const nextCodeRaw = data.nextCode ? String(data.nextCode).trim() : (nextStationRaw ? getStationCodeFromName(nextStationRaw) : '');
+    const nextCodeRaw = resolveStationAudioCode(data.nextCode, nextStationRaw) ||
+        (nextStationRaw ? String(data.nextCode || '').trim() || getStationCodeFromName(nextStationRaw) : '');
     const hasNextStation = nextStationRaw && nextStationRaw !== '' && nextCodeRaw && nextCodeRaw !== 'UNK' && nextCodeRaw !== '';
     const finalNextCode = hasNextStation ? nextCodeRaw : null;
 

station_broadcast.lua

@@ -1,6 +1,6 @@
 
 -- 1. Configuration & Constants
-local APP_VERSION_TEXT = "v1.0.109"
+local APP_VERSION_TEXT = "v1.0.110"
 
 local CONFIG = {
     CLOUD_URL = "ws://stabadmin.fse-media.group",
@@ -4044,18 +4044,19 @@ function Main.loop()
                                     Utils.log("INFO", string.format("Train Alert: %s (ETA: %ds, Delay: %dm, Cancelled: %s, Reason: %s)", trainName, etaSeconds, displayDelayMinutes, tostring(cancelled), tostring(reason or "")))
                                     if Utils.isLocalStationMaster() then
                                         Network.send({
-                                            type = "train_alert",
+                                                type = "train_alert",
-                                            stationName = State.stationName,
+                                                stationName = State.stationName,
-                                            stationCode = State.stationCode,
+                                                stationCode = State.stationCode,
-                                            stationPlatform = platform,
+                                                stationPlatform = platform,
-                                            trainId = trainName,
+                                                trainId = trainName,
-                                            destination = destination,
+                                                destination = destination,
-                                            eta = tostring(etaSeconds) .. "s",
+                                                destCode = Utils.getStationCode(destination),
-                                            etaSeconds = etaSeconds,
+                                                eta = tostring(etaSeconds) .. "s",
-                                            delay = displayDelayMinutes,
+                                                etaSeconds = etaSeconds,
-                                            cancelled = cancelled,
+                                                delay = displayDelayMinutes,
-                                            reason = reason
+                                                cancelled = cancelled,
-                                        })
+                                                reason = reason
+                                            })
                                     end
                                 end
                             end
@@ -4087,6 +4088,7 @@ function Main.loop()
                                                 stationPlatform = platform,
                                                 trainId = trainName,
                                                 destination = destination,
+                                                destCode = Utils.getStationCode(destination),
                                                 eta = string.format("%.1fs", etaSeconds),
                                                 etaSeconds = etaSeconds,
                                                 delay = displayDelayMinutes,
@@ -4216,6 +4218,7 @@ function Main.loop()
                                         stationPlatform = platform or State.stationPlatform or "1",
                                         trainId = tName,
                                         destination = dest,
+                                        destCode = Utils.getStationCode(dest),
                                         eta = etaStr,
                                         etaSeconds = etaSeconds,
                                         delay = delay
@@ -4251,6 +4254,7 @@ function Main.loop()
                                             stationPlatform = platform or State.stationPlatform or "1",
                                             trainId = tName,
                                             destination = dest,
+                                            destCode = Utils.getStationCode(dest),
                                             eta = etaStr,
                                             etaSeconds = etaSeconds,
                                             delay = delay