feat: aprimorado o preview de falantes na tela Refinar para reprod

- aprimorado o preview de falantes na tela Refinar para reproduzir os trechos do vídeo

Resumo:
- 6 arquivos alterados
- 2 novos
- 4 modificados
- 0 removidos

 4 files changed, 97 insertions(+), 11 deletions(-)

Arquivos:
  - .jhonny/analises.db
  - code/cep-plugin/index.html
  - code/cep-plugin/main.js
  - code/cep-plugin/styles.css
  - .jhonny/analises.db-shm
  - .jhonny/analises.db-wal

code/cep-plugin/main.js

@@ -2376,6 +2376,8 @@ function atualizarTelaRefinar(falantes, audioDoBanco) {
 
 var speakerAudioPlayer = null;
 var speakerAudioQueue = null;
+var speakerVideoPlayer = null;
+var speakerVideoQueue = null;
 
 // ---- Central transcript cache ----
 // Evita rodar o Whisper de novo para um vídeo já transcrito antes: indexa
@@ -2982,10 +2984,13 @@ function renderSpeakerConfiguration(speakerIds, speakerTurns, alvo) {
     var play = document.createElement("button");
     play.type = "button";
     play.className = "button speaker-play-button";
-    play.textContent = "▶";
-    play.title = "Ouvir trechos de " + speaker.id;
-    play.setAttribute("aria-label", "Ouvir trechos de " + speaker.id);
-    play.addEventListener("click", function () { toggleSpeakerAudio(speaker.id, play); });
+    play.textContent = alvo.video ? "▶ vídeo" : "▶ áudio";
+    play.title = (alvo.video ? "Ver" : "Ouvir") + " trechos de " + speaker.id;
+    play.setAttribute("aria-label", (alvo.video ? "Ver" : "Ouvir") + " trechos de " + speaker.id);
+    play.addEventListener("click", function () {
+      if (alvo.video) toggleSpeakerVideo(speaker.id, play);
+      else toggleSpeakerAudio(speaker.id, play);
+    });
     var input = document.createElement("input");
     input.type = "text";
     input.className = "select-field speaker-name-input";
@@ -3020,12 +3025,12 @@ function renderSpeakerConfiguration(speakerIds, speakerTurns, alvo) {
   var refineConfig = document.getElementById("refinarSpeakerConfig");
   if (refineConfig && config.id !== refineConfig.id) {
     renderSpeakerConfiguration(speakerIds, speakerTurns, {
-      config: "refinarSpeakerConfig", list: "refinarSpeakerList", count: "refinarSpeakerCount"
+      config: "refinarSpeakerConfig", list: "refinarSpeakerList", count: "refinarSpeakerCount", video: true
     });
   }
 }
 
-function speakerAudioFileUrl(filePath) {
+function speakerMediaFileUrl(filePath) {
   return encodeURI("file://" + String(filePath || ""));
 }
 
@@ -3037,12 +3042,86 @@ function stopSpeakerAudio() {
   }
   speakerAudioPlayer = null;
   speakerAudioQueue = null;
+  if (speakerVideoPlayer) {
+    speakerVideoPlayer.pause();
+    speakerVideoPlayer.onloadedmetadata = null;
+    speakerVideoPlayer.ontimeupdate = null;
+    speakerVideoPlayer.onended = null;
+    speakerVideoPlayer.onerror = null;
+    speakerVideoPlayer.removeAttribute("src");
+    speakerVideoPlayer.load();
+  }
+  speakerVideoPlayer = null;
+  speakerVideoQueue = null;
+  var videoPreview = document.getElementById("refinarSpeakerPreview");
+  if (videoPreview) videoPreview.hidden = true;
   document.querySelectorAll(".speaker-play-button").forEach(function (button) {
-    button.textContent = "▶";
+    button.textContent = button.closest("#refinarSpeakerList") ? "▶ vídeo" : "▶ áudio";
     button.classList.remove("is-playing");
   });
 }
 
+function toggleSpeakerVideo(speakerId, button) {
+  if (speakerVideoPlayer && speakerVideoQueue && speakerVideoQueue.speakerId === speakerId) {
+    stopSpeakerAudio();
+    return;
+  }
+  stopSpeakerAudio();
+  var ranges = silenceState.speakerTurns.filter(function (turn) {
+    return turn.speaker === speakerId && Number(turn.end) > Number(turn.start);
+  }).sort(function (a, b) { return Number(a.start) - Number(b.start); });
+  if (!ranges.length) {
+    showToast("err", "Não há intervalos de vídeo disponíveis para " + speakerId + ".");
+    return;
+  }
+  if (!silenceState.mediaPath || !fs.existsSync(silenceState.mediaPath)) {
+    showToast("err", "Arquivo de vídeo da análise não encontrado.");
+    return;
+  }
+  var video = document.getElementById("refinarSpeakerVideo");
+  var preview = document.getElementById("refinarSpeakerPreview");
+  var info = document.getElementById("refinarSpeakerPreviewInfo");
+  if (!video || !preview) {
+    showToast("err", "Preview de vídeo indisponível nesta versão do painel.");
+    return;
+  }
+  speakerVideoQueue = { speakerId: speakerId, ranges: ranges, index: 0, button: button };
+  speakerVideoPlayer = video;
+  preview.hidden = false;
+  if (info) info.textContent = "Reproduzindo os trechos de " + speakerId + ".";
+  video.src = speakerMediaFileUrl(silenceState.mediaPath);
+  button.textContent = "■ vídeo";
+  button.classList.add("is-playing");
+  video.onloadedmetadata = playCurrentSpeakerVideoRange;
+  video.ontimeupdate = advanceSpeakerVideoRange;
+  video.onended = advanceSpeakerVideoRange;
+  video.onerror = function () {
+    stopSpeakerAudio();
+    showToast("err", "Não foi possível reproduzir o vídeo deste falante.");
+  };
+}
+
+function playCurrentSpeakerVideoRange() {
+  if (!speakerVideoPlayer || !speakerVideoQueue) return;
+  var range = speakerVideoQueue.ranges[speakerVideoQueue.index];
+  if (!range) { stopSpeakerAudio(); return; }
+  speakerVideoPlayer.currentTime = Math.max(0, Number(range.start) - 0.15);
+  var playPromise = speakerVideoPlayer.play();
+  if (playPromise && playPromise.catch) playPromise.catch(function () { stopSpeakerAudio(); });
+}
+
+function advanceSpeakerVideoRange() {
+  if (!speakerVideoPlayer || !speakerVideoQueue) return;
+  var range = speakerVideoQueue.ranges[speakerVideoQueue.index];
+  if (!range || speakerVideoPlayer.currentTime < Number(range.end)) return;
+  speakerVideoQueue.index += 1;
+  if (speakerVideoQueue.index >= speakerVideoQueue.ranges.length) {
+    stopSpeakerAudio();
+    return;
+  }
+  playCurrentSpeakerVideoRange();
+}
+
 function toggleSpeakerAudio(speakerId, button) {
   if (speakerAudioPlayer && speakerAudioQueue && speakerAudioQueue.speakerId === speakerId) {
     stopSpeakerAudio();
@@ -3061,7 +3140,7 @@ function toggleSpeakerAudio(speakerId, button) {
     return;
   }
   speakerAudioQueue = { speakerId: speakerId, ranges: ranges, index: 0, button: button };
-  speakerAudioPlayer = new Audio(speakerAudioFileUrl(silenceState.audioCachePath));
+  speakerAudioPlayer = new Audio(speakerMediaFileUrl(silenceState.audioCachePath));
   button.textContent = "■";
   button.classList.add("is-playing");
   speakerAudioPlayer.addEventListener("loadedmetadata", playCurrentSpeakerRange);