feat(channel): 同步 vivid 最新渠道设计 — 手动全量同步端点/并发0=不限/同名别名报错

对齐 vivid 6039423/5802749/a1f808f/cfb6d49/aba8474/b01636f:
- 新增 POST /channels/sync-models:已保存渠道手动全量同步,上游不可达/
  空清单直接报错(保存路径仍降级为告警);渠道行按钮不再弹勾选框,
  表单内对已保存渠道同样直同步,新渠道保持预览+勾选即绑定
- 渠道并发 0 = 不限制(原 0=默认5),上限放开到 int32,槽位 Lua 本就
  max=0 放行
- 别名与上游模型同名提交即报错「留空即同名」,前后端双校验
- 渠道列表去掉上游地址与模型两列(同 vivid),状态徽章悬浮显示失败原因

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

backend/internal/http/handler/channel_admin.go

@@ -88,6 +88,25 @@ func (h *ChannelAdminHandler) FetchModels(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"data": items})
 }
 
+// SyncModels manually re-runs the full upstream model sync on a saved channel
+// (new models bound, disappeared ones unbound, orphans deleted). Fetch
+// failures are errors here — unlike the save path which degrades to a warning.
+func (h *ChannelAdminHandler) SyncModels(c *gin.Context) {
+	var body struct {
+		ID string `json:"id"`
+	}
+	if err := c.ShouldBindJSON(&body); err != nil || strings.TrimSpace(body.ID) == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"detail": "channel id required"})
+		return
+	}
+	msg, err := h.channels.SyncModels(c.Request.Context(), body.ID)
+	if err != nil {
+		writeUpstreamErr(c, err)
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"ok": true, "message": msg})
+}
+
 // ImportModels binds the ticked upstream models to the channel (creating local
 // model rows on first import).
 func (h *ChannelAdminHandler) ImportModels(c *gin.Context) {

backend/internal/http/router/router.go

@@ -146,6 +146,7 @@ func New(cfg *config.Config, auth *service.AuthService, handlers Handlers) *gin.
 		authed.POST("/channels", handlers.ChannelAdmin.Save)
 		authed.POST("/channels/delete", handlers.ChannelAdmin.Delete)
 		authed.POST("/channels/fetch-models", handlers.ChannelAdmin.FetchModels)
+		authed.POST("/channels/sync-models", handlers.ChannelAdmin.SyncModels)
 		authed.POST("/channels/import-models", handlers.ChannelAdmin.ImportModels)
 		authed.POST("/channels/unbind-model", handlers.ChannelAdmin.UnbindModel)
 		authed.GET("/providers", handlers.AdminRead.Providers)

backend/internal/model/models.go

@@ -194,7 +194,7 @@ type Channel struct {
 	BaseURL   string `gorm:"size:500;not null"`
 	APIKeyEnc string `gorm:"type:text;not null"` // AES-GCM encrypted upstream API key
 	Enabled   bool   `gorm:"not null;default:true;index"`
-	// Concurrency caps simultaneous in-flight jobs on this channel. 0 = default.
+	// Concurrency caps simultaneous in-flight jobs on this channel. 0 = unlimited.
 	Concurrency int `gorm:"not null;default:0"`
 	// Weight biases weighted-random channel order: weight 2 is picked first at
 	// roughly 2x the rate of weight 1.

backend/internal/service/channel.go

@@ -11,6 +11,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math"
 	"strings"
 	"sync"
 	"time"
@@ -132,6 +133,9 @@ func (s *ChannelService) Save(ctx context.Context, d SaveChannelDto) (*model.Cha
 	if !strings.HasPrefix(base, "http://") && !strings.HasPrefix(base, "https://") {
 		return nil, "", errors.New("base_url must start with http:// or https://")
 	}
+	if d.Concurrency < 0 || d.Concurrency > math.MaxInt32 {
+		return nil, "", errors.New("并发数需在 0-2147483647 之间（0 = 不限制）")
+	}
 	weight := d.Weight
 	if weight < 1 {
 		weight = 1
@@ -159,7 +163,7 @@ func (s *ChannelService) Save(ctx context.Context, d SaveChannelDto) (*model.Cha
 		if err := s.channels.Create(ctx, ch); err != nil {
 			return nil, "", err
 		}
-		return ch, s.syncChannelModels(ctx, ch.ID), nil
+		return ch, syncWarn(s.syncChannelModels(ctx, ch.ID)), nil
 	}
 	patch := map[string]any{
 		"name":        name,
@@ -179,31 +183,58 @@ func (s *ChannelService) Save(ctx context.Context, d SaveChannelDto) (*model.Cha
 	if err != nil {
 		return nil, "", err
 	}
-	return ch, s.syncChannelModels(ctx, d.ID), nil
+	return ch, syncWarn(s.syncChannelModels(ctx, d.ID)), nil
+}
+
+// syncWarn folds the sync error into the save-path warning (vivid parity: a
+// failed upstream fetch degrades to a non-fatal warning instead of blocking
+// the channel save).
+func syncWarn(warn string, err error) string {
+	if err != nil {
+		return err.Error()
+	}
+	return warn
+}
+
+// SyncModels manually triggers a full upstream-model sync for a saved channel
+// (same truth semantics as the save path). Unlike Save, an unreachable upstream
+// or empty model list is a hard error, not a warning.
+func (s *ChannelService) SyncModels(ctx context.Context, channelID string) (string, error) {
+	if _, err := s.channels.Get(ctx, strings.TrimSpace(channelID)); err != nil {
+		return "", err
+	}
+	warn, err := s.syncChannelModels(ctx, channelID)
+	if err != nil {
+		return "", err
+	}
+	if warn != "" {
+		return warn, nil
+	}
+	return "已同步上游模型", nil
 }
 
 // syncChannelModels runs after Save: upstream /v1/models is the truth — every
 // sellable upstream model is upserted locally (alias = upstream id) and bound;
 // bindings on this channel not in the upstream list are removed, and orphan
-// local models are deleted. An unreachable upstream or empty/anomalous list
-// only produces a warning — the DB is left untouched.
-func (s *ChannelService) syncChannelModels(ctx context.Context, channelID string) string {
+// local models are deleted. An unreachable upstream or empty list is an error
+// (the save path degrades it to a warning); warn carries non-fatal skips.
+func (s *ChannelService) syncChannelModels(ctx context.Context, channelID string) (string, error) {
 	ch, err := s.channels.Get(ctx, channelID)
 	if err != nil {
-		return "模型自动同步失败：" + err.Error()
+		return "", fmt.Errorf("模型同步失败：%w", err)
 	}
 	key := s.decrypt(ch.APIKeyEnc)
 	if key == "" {
-		return "模型自动同步失败：无法解密上游密钥"
+		return "", errors.New("模型同步失败：无法解密上游密钥")
 	}
 	fctx, cancel := context.WithTimeout(ctx, 20*time.Second)
 	defer cancel()
 	models, err := s.up.Models(fctx, ch.BaseURL, key)
 	if err != nil {
-		return "模型自动同步失败：" + err.Error()
+		return "", fmt.Errorf("模型同步失败：%w", err)
 	}
 	if len(models) == 0 {
-		return "上游未返回任何模型，已跳过同步"
+		return "", errors.New("上游未返回任何模型，已跳过同步")
 	}
 	specs := make([]ChannelModelSpec, 0, len(models))
 	upstreamIDs := make([]string, 0, len(models))
@@ -218,13 +249,13 @@ func (s *ChannelService) syncChannelModels(ctx context.Context, channelID string
 		upstreamIDs = append(upstreamIDs, spec.ID)
 	}
 	if len(upstreamIDs) == 0 {
-		return fmt.Sprintf("上游模型均规格异常，已跳过同步：%s", strings.Join(skipped, "；"))
+		return "", fmt.Errorf("上游模型均规格异常，已跳过同步：%s", strings.Join(skipped, "；"))
 	}
 	if err := s.ImportModels(ctx, channelID, specs); err != nil {
-		return "模型自动同步失败：" + err.Error()
+		return "", fmt.Errorf("模型同步失败：%w", err)
 	}
 	if err := s.channels.UnbindExcept(ctx, channelID, upstreamIDs); err != nil {
-		return "模型自动同步失败：" + err.Error()
+		return "", fmt.Errorf("模型同步失败：%w", err)
 	}
 	if orphans, oerr := s.channels.OrphanModelIDs(ctx); oerr == nil {
 		for _, mid := range orphans {
@@ -232,9 +263,9 @@ func (s *ChannelService) syncChannelModels(ctx context.Context, channelID string
 		}
 	}
 	if len(skipped) > 0 {
-		return fmt.Sprintf("已同步上游模型，跳过 %d 个异常项：%s", len(skipped), strings.Join(skipped, "；"))
+		return fmt.Sprintf("已同步上游模型，跳过 %d 个异常项：%s", len(skipped), strings.Join(skipped, "；")), nil
 	}
-	return ""
+	return "", nil
 }
 
 // normalizeRemoteModel validates an upstream /v1/models item into an import
@@ -419,7 +450,11 @@ func (s *ChannelService) ImportModels(ctx context.Context, channelID string, spe
 		if upID == "" {
 			continue
 		}
-		localID := strings.TrimSpace(spec.Alias)
+		alias := strings.TrimSpace(spec.Alias)
+		if alias == upID {
+			return fmt.Errorf("「%s」别名不能与上游模型同名，留空即可", upID)
+		}
+		localID := alias
 		if localID == "" {
 			localID = upID
 		}
@@ -459,8 +494,8 @@ func (s *ChannelService) ImportModels(ctx context.Context, channelID string, spe
 }
 
 // modelPatchFromSpec maps an upstream model spec onto model_configs columns.
-// Prices/enabled/alias are intentionally untouched on update so admin pricing
-// survives re-import.
+// Prices/alias are intentionally untouched on update so admin pricing survives
+// re-import.
 func modelPatchFromSpec(spec ChannelModelSpec, existing *model.ModelConfig) map[string]any {
 	patch := map[string]any{
 		"type":                  spec.Kind,

backend/internal/service/v1.go

@@ -64,8 +64,8 @@ const videoGenBudget = 30 * time.Minute
 // imageGenBudget caps one image generation end-to-end.
 const imageGenBudget = 8 * time.Minute
 
-// defaultChannelConcurrency applies when a channel's Concurrency is 0.
-const defaultChannelConcurrency = 5
+// Channel concurrency semantics: 0 = unlimited (the Lua slot script passes
+// max=0 straight through), matching vivid's channel design.
 
 // maxChannelFailover caps how many channels one request may burn on
 // retryable/temporary errors before giving up, so an upstream-wide blip can't
@@ -100,11 +100,11 @@ type V1Service struct {
 	conc *ConcurrencyService
 }
 
-// chanAcquire takes one per-channel slot (capped at max; 0 = default), tagged
+// chanAcquire takes one per-channel slot (capped at max; 0 = unlimited), tagged
 // with the generation's eventID.
 func (s *V1Service) chanAcquire(ctx context.Context, channelID, eventID string, max int) bool {
-	if max < 1 {
-		max = defaultChannelConcurrency
+	if max < 0 {
+		max = 0
 	}
 	return s.conc.Acquire(ctx, "conc:c:"+channelID, max, eventID)
 }

frontend/src/views/ChannelsView.vue

@@ -10,6 +10,8 @@ const channels = ref([])
 const loading = ref(false)
 const err = ref('')
 const warn = ref('')          // 保存后自动同步的非致命告警
+const okMsg = ref('')         // 手动同步成功提示
+const syncing = ref(false)
 
 // create/edit form
 const form = ref(null)
@@ -31,12 +33,6 @@ async function load() {
   loading.value = false
 }
 
-function modelSummary(c) {
-  const names = c.models || []
-  if (!names.length) return ''
-  return names.length <= 2 ? names.join('、') : `${names[0]}、${names[1]} 等`
-}
-
 function openAdd() {
   formErr.value = ''
   form.value = { id: '', name: '', base_url: '', api_key: '', concurrency: 5, weight: 1, enabled: true }
@@ -54,6 +50,7 @@ async function save() {
   if (saving.value) return
   saving.value = true
   formErr.value = ''
+  okMsg.value = ''
   const r = await api('/channels', jsonBody('POST', {
     id: f.id, name: f.name, base_url: f.base_url, api_key: f.api_key,
     enabled: !!f.enabled, concurrency: f.concurrency || 0, weight: f.weight || 1,
@@ -83,13 +80,34 @@ async function del(c) {
   channels.value = channels.value.filter((x) => x.id !== c.id)
 }
 
-// 表单内拉模型：编辑态走库内渠道（密钥不用重填）；新渠道用表单里的地址+key 预览。
+// 已保存渠道手动「同步上游模型」：直接全量同步（新模型入库绑定，上游消失的
+// 解绑/清孤儿），拉取失败直接报错；新渠道则只用表单地址+key 预览不落库。
+async function syncModels(c) {
+  if (syncing.value) return
+  syncing.value = true
+  err.value = ''
+  warn.value = ''
+  okMsg.value = ''
+  try {
+    const r = await api('/channels/sync-models', jsonBody('POST', { id: c.id }))
+    if (!r.ok) { err.value = r.data?.detail || '同步失败'; return }
+    const msg = r.data?.message || '已同步上游模型'
+    if (msg === '已同步上游模型') okMsg.value = msg
+    else warn.value = msg
+    load()
+  } finally {
+    syncing.value = false
+  }
+}
+
+// 表单内拉模型：编辑态直接全量同步；新渠道用表单里的地址+key 预览（导入时自动保存）。
 function fetchFromForm() {
   const f = form.value
   if (!f) return
+  if (f.id) { syncModels(f); return }
   if (!/^https?:\/\/\S+$/.test((f.base_url || '').trim())) { formErr.value = '上游地址需以 http(s):// 开头'; return }
-  if (!f.id && !f.api_key) { formErr.value = '请填写 API Key'; return }
-  openFetch({ id: f.id || '', name: f.name || f.base_url, base_url: f.base_url, api_key: f.api_key, concurrency: f.concurrency, weight: f.weight, enabled: !!f.enabled })
+  if (!f.api_key) { formErr.value = '请填写 API Key'; return }
+  openFetch({ id: '', name: f.name || f.base_url, base_url: f.base_url, api_key: f.api_key, concurrency: f.concurrency, weight: f.weight, enabled: !!f.enabled })
 }
 
 async function openFetch(c) {
@@ -109,6 +127,10 @@ async function openFetch(c) {
 // 新渠道尚未入库时，第一次勾选会先自动保存渠道再绑定。
 async function toggleBind(s) {
   if (s.busy) return
+  if (!s.bound && s.alias && s.alias === s.id) {
+    fetchErr.value = `「${s.id}」别名不能与上游模型同名，留空即可`
+    return
+  }
   s.busy = true
   fetchErr.value = ''
   try {
@@ -172,6 +194,7 @@ onMounted(load)
 
     <p v-if="err" class="text-xs text-rose-300">{{ err }}</p>
     <p v-if="warn" class="text-xs text-amber-300">{{ warn }}</p>
+    <p v-if="okMsg" class="text-xs text-emerald-300">{{ okMsg }}</p>
 
     <div class="card overflow-hidden">
       <div class="overflow-x-auto">
@@ -179,8 +202,6 @@ onMounted(load)
           <thead>
             <tr>
               <th>渠道</th>
-              <th>上游地址</th>
-              <th>模型</th>
               <th>并发</th>
               <th>配比</th>
               <th class="text-right">成功调用</th>
@@ -197,14 +218,7 @@ onMounted(load)
                 <div class="font-medium text-white/85">{{ c.name }}</div>
                 <div class="text-[11px] text-white/35 font-mono">{{ c.id }}</div>
               </td>
-              <td>
-                <div class="max-w-[240px] truncate font-mono text-xs text-white/55" :title="c.base_url">{{ c.base_url }}</div>
-              </td>
-              <td>
-                <div class="tabular-nums text-white/80">{{ (c.models || []).length }}</div>
-                <div class="text-[11px] text-white/35 max-w-[180px] truncate" :title="(c.models || []).join('、')">{{ modelSummary(c) }}</div>
-              </td>
-              <td class="tabular-nums">{{ c.concurrency || '默认' }}</td>
+              <td class="tabular-nums">{{ c.concurrency || '不限' }}</td>
               <td class="tabular-nums">{{ c.weight || 1 }}</td>
               <td class="text-right tabular-nums">{{ (c.success_total || 0).toLocaleString() }}</td>
               <td class="text-right tabular-nums">{{ (c.used_credits || 0).toLocaleString() }}</td>
@@ -218,13 +232,13 @@ onMounted(load)
               </td>
               <td class="text-xs text-white/45 whitespace-nowrap">{{ c.last_used_at ? fmtTs(c.last_used_at) : '-' }}</td>
               <td class="text-right whitespace-nowrap">
-                <button @click="openFetch(c)" class="op" title="拉取上游模型"><Icon name="spark" class="w-3.5 h-3.5" /></button>
+                <button @click="syncModels(c)" :disabled="syncing" class="op" title="同步上游模型"><Icon name="spark" class="w-3.5 h-3.5" /></button>
                 <button @click="openEdit(c)" class="op" title="编辑"><Icon name="config" class="w-3.5 h-3.5" /></button>
                 <button @click="del(c)" class="op danger" title="删除"><Icon name="trash" class="w-3.5 h-3.5" /></button>
               </td>
             </tr>
-            <tr v-if="loading"><td colspan="11" class="py-10 text-center text-white/40 text-sm">正在加载渠道…</td></tr>
-            <tr v-else-if="!channels.length"><td colspan="11" class="py-10 text-center text-white/40 text-sm">没有渠道，点右上角「添加渠道」接入上游实例</td></tr>
+            <tr v-if="loading"><td colspan="9" class="py-10 text-center text-white/40 text-sm">正在加载渠道…</td></tr>
+            <tr v-else-if="!channels.length"><td colspan="9" class="py-10 text-center text-white/40 text-sm">没有渠道，点右上角「添加渠道」接入上游实例</td></tr>
           </tbody>
         </table>
       </div>
@@ -255,8 +269,8 @@ onMounted(load)
           <div class="grid grid-cols-2 gap-3">
             <div>
               <label class="lbl">并发数</label>
-              <input v-model.number="form.concurrency" type="number" min="0" max="100" class="field" />
-              <p class="mt-1 text-[11px] text-white/35">0 = 默认 5</p>
+              <input v-model.number="form.concurrency" type="number" min="0" max="2147483647" class="field" />
+              <p class="mt-1 text-[11px] text-white/35">0 = 不限</p>
             </div>
             <div>
               <label class="lbl">配比</label>
@@ -276,7 +290,7 @@ onMounted(load)
             <button type="button" @click="fetchFromForm" :disabled="fetching" class="btn-ghost text-xs">
               {{ fetching ? '拉取中…' : '获取模型列表' }}
             </button>
-            <span class="text-[11px] text-white/35">{{ form.id ? '用已保存的地址与密钥拉取' : '用上方的地址与 API Key 拉取；导入时会先自动保存渠道' }}</span>
+            <span class="text-[11px] text-white/35">{{ form.id ? '直接全量同步上游模型到模型列表' : '用上方的地址与 API Key 预览；导入时会先自动保存渠道' }}</span>
           </div>
           <p v-if="formErr" class="text-xs text-rose-300">{{ formErr }}</p>
         </div>

frontend/src/views/LogsView.vue

@@ -278,7 +278,7 @@ const sourcePill = (s) => ({
               <span v-else class="text-white/25">—</span>
             </td>
             <td class="px-3 py-3.5 align-middle">
-              <span class="chip ring-1" :class="statusPill(e.status)">
+              <span class="chip ring-1" :class="statusPill(e.status)" :title="e.error || ''">
                 <span class="w-1.5 h-1.5 rounded-full" :class="statusDot(e.status)"></span>
                 {{ statusLabel(e.status) }}
               </span>