fix: improve request viewer and concurrency

.github/workflows/release.yml

@@ -7,7 +7,7 @@ on:
   workflow_dispatch:
     inputs:
       tag:
-        description: "Release tag, for example v1.2.0"
+        description: "Release tag, for example v1.2.1"
         required: true
 
 permissions:

README.md

@@ -8,7 +8,7 @@ The project is designed for tools such as Claude Code, Cline, Continue, OpenCode
 
 ## Current Version
 
-The current desktop line is `v1.2.0`.
+The current desktop line is `v1.2.1`.
 
 Release builds are produced by GitHub Actions for:
 
@@ -249,6 +249,21 @@ Priority order:
 4. command-line flags
 5. desktop Settings page updates
 
+## Concurrency
+
+Older builds rejected concurrent chat requests with a `rate_limit_error` saying the proxy handled one request at a time. Current builds use a small execution pool instead:
+
+- default max concurrent chat requests: `4`
+- override with `LINGMA_PROXY_MAX_CONCURRENT`
+- allowed range: `1` to `16`
+- `session_mode=auto` uses fresh Lingma sessions so parallel editor requests do not share one sticky session
+
+Example:
+
+```bash
+LINGMA_PROXY_MAX_CONCURRENT=8 lingma-ipc-proxy --port 8095
+```
+
 ## Function Calling / Tool Calling
 
 Lingma does not expose a native public OpenAI/Anthropic tool-call protocol, so this proxy emulates tool calling:
@@ -291,7 +306,7 @@ The desktop bundle name is always `Lingma IPC Proxy`.
 
 The release workflow is triggered by:
 
-- pushing a tag such as `v1.2.0`
+- pushing a tag such as `v1.2.1`
 - manually running the `Release` workflow with a tag input
 
 Planned improvements:

README.zh-CN.md

@@ -11,7 +11,7 @@
 
 ## 当前版本
 
-当前桌面端版本线：`v1.2.0`
+当前桌面端版本线：`v1.2.1`
 
 GitHub Actions 会在 Release 中产出：
 
@@ -328,6 +328,27 @@ export ANTHROPIC_API_KEY="any"
 4. 命令行参数
 5. 桌面端设置页保存的配置
 
+## 并发请求
+
+旧版本为了避免 Lingma 会话串扰，在 HTTP 层做了全局单请求限制，所以并发请求会返回：
+
+```json
+{"error":{"message":"Lingma IPC proxy handles one request at a time.","type":"rate_limit_error"},"type":"error"}
+```
+
+现在已经改成有限并发执行池：
+
+- 默认最多同时处理 `4` 个 Chat 请求。
+- 可以用 `LINGMA_PROXY_MAX_CONCURRENT` 覆盖。
+- 合法范围是 `1` 到 `16`。
+- `session_mode=auto` 默认使用 fresh Lingma 会话，避免多个编辑器并发请求挤到同一个 sticky session 里串上下文。
+
+示例：
+
+```bash
+LINGMA_PROXY_MAX_CONCURRENT=8 lingma-ipc-proxy --port 8095
+```
+
 ## 工具调用实现
 
 Lingma 插件本身没有公开标准 OpenAI / Anthropic Tools 协议，所以本项目使用 **Tool Emulation**：
@@ -394,8 +415,8 @@ Lingma IPC Proxy
 发布方式：
 
 ```bash
-git tag v1.2.0
+git tag v1.2.1
-git push origin v1.2.0
+git push origin v1.2.1
 ```
 
 也可以在 GitHub Actions 页面手动运行 `Release` workflow，并输入 tag。

desktop/frontend/src/App.vue

@@ -222,7 +222,7 @@ onUnmounted(() => {
         <span class="status-dot" :class="{ running: status.running }"></span>
         <div>
           <strong>{{ status.running ? 'Proxy Running' : 'Proxy Stopped' }}</strong>
-          <small>v1.2.0</small>
+          <small>v1.2.1</small>
         </div>
       </div>
     </aside>

desktop/frontend/src/components/JsonTree.vue

@@ -0,0 +1,113 @@
+<script>
+export default {
+  name: 'JsonTree',
+  props: {
+    value: {
+      type: null,
+      required: true,
+    },
+    name: {
+      type: [String, Number],
+      default: '',
+    },
+    root: {
+      type: Boolean,
+      default: false,
+    },
+    level: {
+      type: Number,
+      default: 0,
+    },
+  },
+  data() {
+    return {
+      collapsed: false,
+    }
+  },
+  computed: {
+    kind() {
+      if (Array.isArray(this.value)) return 'array'
+      if (this.value === null) return 'null'
+      return typeof this.value
+    },
+    isBranch() {
+      return this.kind === 'array' || this.kind === 'object'
+    },
+    entries() {
+      if (this.kind === 'array') {
+        return this.value.map((item, index) => [index, item])
+      }
+      if (this.kind === 'object') {
+        return Object.entries(this.value)
+      }
+      return []
+    },
+    openToken() {
+      return this.kind === 'array' ? '[' : '{'
+    },
+    closeToken() {
+      return this.kind === 'array' ? ']' : '}'
+    },
+    summary() {
+      const count = this.entries.length
+      return `${count} ${this.kind === 'array' ? 'items' : 'keys'}`
+    },
+    scalarClass() {
+      return `json-${this.kind}`
+    },
+    scalarText() {
+      if (this.kind === 'string') return JSON.stringify(this.value)
+      if (this.kind === 'null') return 'null'
+      return String(this.value)
+    },
+  },
+  methods: {
+    toggle() {
+      if (this.isBranch) {
+        this.collapsed = !this.collapsed
+      }
+    },
+  },
+}
+</script>
+
+<template>
+  <div class="json-node" :class="{ root }">
+    <div class="json-line" :style="{ paddingLeft: root ? '0px' : `${level * 14}px` }">
+      <button
+        v-if="isBranch"
+        class="json-toggle"
+        type="button"
+        :aria-label="collapsed ? '展开 JSON 节点' : '收起 JSON 节点'"
+        @click.stop="toggle"
+      >
+        <i :class="collapsed ? 'bi bi-chevron-right' : 'bi bi-chevron-down'"></i>
+      </button>
+      <span v-else class="json-toggle-spacer"></span>
+
+      <span v-if="!root" class="json-key">{{ JSON.stringify(String(name)) }}</span>
+      <span v-if="!root" class="json-punctuation">: </span>
+
+      <template v-if="isBranch">
+        <span class="json-punctuation">{{ openToken }}</span>
+        <button class="json-summary" type="button" @click.stop="toggle">{{ summary }}</button>
+        <span v-if="collapsed" class="json-punctuation">{{ closeToken }}</span>
+      </template>
+      <span v-else class="json-scalar" :class="scalarClass">{{ scalarText }}</span>
+    </div>
+
+    <template v-if="isBranch && !collapsed">
+      <JsonTree
+        v-for="([childName, childValue], index) in entries"
+        :key="`${String(childName)}-${index}`"
+        :name="childName"
+        :value="childValue"
+        :level="level + 1"
+      />
+      <div class="json-line" :style="{ paddingLeft: root ? '0px' : `${level * 14}px` }">
+        <span class="json-toggle-spacer"></span>
+        <span class="json-punctuation">{{ closeToken }}</span>
+      </div>
+    </template>
+  </div>
+</template>

desktop/frontend/src/components/JsonViewer.vue

@@ -0,0 +1,34 @@
+<script setup>
+import { computed } from 'vue'
+import JsonTree from './JsonTree.vue'
+
+const props = defineProps({
+  body: {
+    type: String,
+    default: '',
+  },
+  emptyText: {
+    type: String,
+    default: '空内容',
+  },
+})
+
+const parsed = computed(() => {
+  const raw = String(props.body || '').trim()
+  if (!raw) {
+    return { valid: false, empty: true, text: props.emptyText }
+  }
+  try {
+    return { valid: true, value: JSON.parse(raw) }
+  } catch (e) {
+    return { valid: false, empty: false, text: props.body }
+  }
+})
+</script>
+
+<template>
+  <div class="json-viewer hidden-scrollbar" :class="{ empty: parsed.empty }">
+    <JsonTree v-if="parsed.valid" :value="parsed.value" root />
+    <pre v-else>{{ parsed.text }}</pre>
+  </div>
+</template>

desktop/frontend/src/style.css

@@ -877,8 +877,10 @@ button {
 
 .requests-panel .table-scroll {
   flex: 0 0 auto;
-  min-height: 112px;
+  --request-row-height: 72px;
-  max-height: min(360px, 42vh);
+  --request-head-height: 43px;
+  min-height: calc(var(--request-head-height) + var(--request-row-height));
+  max-height: calc(var(--request-head-height) + var(--request-row-height) * 5);
   overflow: auto;
 }
 
@@ -898,6 +900,7 @@ button {
   width: 100%;
   border-collapse: collapse;
   font-size: 13px;
+  background: rgba(255, 255, 255, 0.7);
   -webkit-user-select: text;
   user-select: text;
 }
@@ -905,10 +908,10 @@ button {
 .data-table th,
 .data-table td {
   min-width: 0;
-  padding: 9px 14px;
+  padding: 8px 14px;
   border-bottom: 1px solid var(--line);
   text-align: left;
-  vertical-align: top;
+  vertical-align: middle;
 }
 
 .data-table th {
@@ -922,15 +925,40 @@ button {
 }
 
 .data-table tbody tr {
+  height: var(--request-row-height, 64px);
   cursor: pointer;
+  background: rgba(255, 255, 255, 0.34);
+  transition: background-color 140ms ease, box-shadow 140ms ease;
 }
 
 .data-table tbody tr:hover {
   background: rgba(232, 240, 255, 0.58);
 }
 
+.data-table tbody tr.selected {
+  background: rgba(219, 231, 255, 0.86);
+  box-shadow: inset 3px 0 0 var(--blue);
+}
+
+:root[data-theme="dark"] .data-table {
+  background: rgba(15, 23, 42, 0.8);
+}
+
+:root[data-theme="dark"] .data-table th {
+  background: rgba(15, 23, 42, 0.96);
+}
+
+:root[data-theme="dark"] .data-table tbody tr {
+  background: rgba(20, 31, 48, 0.7);
+}
+
 :root[data-theme="dark"] .data-table tbody tr:hover {
-  background: rgba(82, 105, 139, 0.16);
+  background: rgba(45, 65, 96, 0.9);
+}
+
+:root[data-theme="dark"] .data-table tbody tr.selected {
+  background: rgba(38, 65, 112, 0.96);
+  box-shadow: inset 3px 0 0 #67a1ff;
 }
 
 .chip,
@@ -1265,6 +1293,10 @@ button:disabled {
   user-select: text;
 }
 
+:root[data-theme="dark"] .detail-panel {
+  background: rgba(12, 18, 30, 0.96);
+}
+
 .detail-section {
   display: flex;
   flex: 0 0 auto;
@@ -1295,7 +1327,8 @@ button:disabled {
 }
 
 .detail-panel pre,
-.code-block {
+.code-block,
+.json-viewer {
   max-height: min(320px, 34vh);
   margin: 0 0 14px;
   overflow: auto;
@@ -1315,15 +1348,145 @@ button:disabled {
   word-break: break-word;
 }
 
-.detail-panel pre {
+.json-viewer {
+  white-space: normal;
+}
+
+.json-viewer pre {
+  margin: 0;
+  color: inherit;
+  font: inherit;
+  white-space: pre-wrap;
+}
+
+.json-viewer.empty {
+  color: var(--muted);
+}
+
+.json-node {
+  min-width: max-content;
+}
+
+.json-line {
+  display: flex;
+  min-height: 22px;
+  align-items: flex-start;
+  gap: 2px;
+  white-space: pre;
+}
+
+.json-toggle,
+.json-toggle-spacer {
+  width: 20px;
+  height: 20px;
+  flex: 0 0 20px;
+}
+
+.json-toggle {
+  display: inline-grid;
+  margin: 1px 2px 0 0;
+  padding: 0;
+  place-items: center;
+  color: var(--muted);
+  border: 0;
+  background: transparent;
+  cursor: pointer;
+}
+
+.json-toggle:hover {
+  color: var(--blue);
+}
+
+.json-toggle i {
+  font-size: 11px;
+}
+
+.json-key {
+  color: #8250df;
+}
+
+.json-string {
+  color: #116329;
+}
+
+.json-number {
+  color: #0550ae;
+}
+
+.json-boolean {
+  color: #cf222e;
+}
+
+.json-null {
+  color: #6e7781;
+}
+
+.json-punctuation {
+  color: #57606a;
+}
+
+.json-summary {
+  margin: 0 3px;
+  padding: 0 7px;
+  color: var(--muted);
+  border: 1px solid rgba(148, 163, 184, 0.28);
+  border-radius: 999px;
+  background: rgba(148, 163, 184, 0.12);
+  font: inherit;
+  cursor: pointer;
+}
+
+.json-summary:hover {
+  color: var(--blue);
+  border-color: rgba(44, 111, 231, 0.38);
+}
+
+:root[data-theme="dark"] .json-key {
+  color: #c4b5fd;
+}
+
+:root[data-theme="dark"] .json-string {
+  color: #86efac;
+}
+
+:root[data-theme="dark"] .json-number {
+  color: #93c5fd;
+}
+
+:root[data-theme="dark"] .json-boolean {
+  color: #fca5a5;
+}
+
+:root[data-theme="dark"] .json-null,
+:root[data-theme="dark"] .json-punctuation {
+  color: #9aa8bd;
+}
+
+:root[data-theme="dark"] .json-summary {
+  color: #b7c3d6;
+  border-color: rgba(148, 163, 184, 0.24);
+  background: rgba(30, 41, 59, 0.78);
+}
+
+.detail-panel pre,
+.json-viewer {
   scrollbar-width: none;
 }
 
-.detail-panel pre::-webkit-scrollbar {
+.detail-panel pre::-webkit-scrollbar,
+.json-viewer::-webkit-scrollbar {
   width: 0;
   height: 0;
 }
 
+:root[data-theme="dark"] .detail-panel pre,
+:root[data-theme="dark"] .code-block,
+:root[data-theme="dark"] .json-viewer {
+  color: var(--text);
+  border-color: var(--line);
+  background: rgba(17, 24, 39, 0.94);
+}
+
 
 
 .log-row {

desktop/frontend/src/views/Requests.vue

@@ -2,6 +2,7 @@
 import { computed, onMounted, onUnmounted, ref } from 'vue'
 import { ClearRequests, GetRequests } from '../../wailsjs/go/main/App.js'
 import { ClipboardSetText, EventsOff, EventsOn } from '../../wailsjs/runtime'
+import JsonViewer from '../components/JsonViewer.vue'
 
 const emit = defineEmits(['notice'])
 
@@ -137,7 +138,12 @@ onUnmounted(() => {
             </tr>
           </thead>
           <tbody>
-            <tr v-for="(request, index) in filtered" :key="index" @click="selectRow(index)">
+            <tr
+              v-for="(request, index) in filtered"
+              :key="index"
+              :class="{ selected: selected === index }"
+              @click="selectRow(index)"
+            >
               <td>{{ request.time }}</td>
               <td><span class="method-chip">{{ request.method }}</span></td>
               <td>
@@ -162,7 +168,7 @@ onUnmounted(() => {
               </button>
             </div>
           </div>
-          <pre>{{ filtered[selected].reqBody || '空请求体' }}</pre>
+          <JsonViewer :body="filtered[selected].reqBody" empty-text="空请求体" />
         </div>
         <div class="detail-section">
           <div class="detail-toolbar">
@@ -173,7 +179,7 @@ onUnmounted(() => {
               </button>
             </div>
           </div>
-          <pre>{{ filtered[selected].respBody || '空响应体' }}</pre>
+          <JsonViewer :body="filtered[selected].respBody" empty-text="空响应体" />
         </div>
       </div>
     </section>

internal/httpapi/server.go

@@ -8,6 +8,8 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"os"
+	"strconv"
 	"strings"
 	"time"
 
@@ -80,7 +82,7 @@ type modelResponse struct {
 func NewServer(addr string, svc *service.Service) *Server {
 	s := &Server{
 		svc: svc,
-		sem: make(chan struct{}, 1),
+		sem: make(chan struct{}, maxConcurrentRequests()),
 	}
 	mux := http.NewServeMux()
 	mux.HandleFunc("/", s.handleRoot)
@@ -189,8 +191,8 @@ func (s *Server) handleAnthropicMessages(w http.ResponseWriter, r *http.Request)
 		writeAnthropicError(w, http.StatusMethodNotAllowed, "invalid_request_error", "method not allowed")
 		return
 	}
-	if !s.tryAcquire() {
+	if !s.acquire(r.Context()) {
-		writeAnthropicError(w, http.StatusTooManyRequests, "rate_limit_error", "Lingma IPC proxy handles one request at a time.")
+		writeAnthropicError(w, http.StatusRequestTimeout, "timeout_error", "request was cancelled while waiting for a proxy execution slot")
 		return
 	}
 	defer s.release()
@@ -260,8 +262,8 @@ func (s *Server) handleOpenAIChatCompletions(w http.ResponseWriter, r *http.Requ
 		writeOpenAIError(w, http.StatusMethodNotAllowed, "invalid_request_error", "method not allowed")
 		return
 	}
-	if !s.tryAcquire() {
+	if !s.acquire(r.Context()) {
-		writeOpenAIError(w, http.StatusTooManyRequests, "rate_limit_error", "Lingma IPC proxy handles one request at a time.")
+		writeOpenAIError(w, http.StatusRequestTimeout, "timeout_error", "request was cancelled while waiting for a proxy execution slot")
 		return
 	}
 	defer s.release()
@@ -971,11 +973,26 @@ func withCORS(next http.Handler) http.Handler {
 	})
 }
 
-func (s *Server) tryAcquire() bool {
+func maxConcurrentRequests() int {
+	raw := strings.TrimSpace(os.Getenv("LINGMA_PROXY_MAX_CONCURRENT"))
+	if raw == "" {
+		return 4
+	}
+	n, err := strconv.Atoi(raw)
+	if err != nil || n < 1 {
+		return 4
+	}
+	if n > 16 {
+		return 16
+	}
+	return n
+}
+
+func (s *Server) acquire(ctx context.Context) bool {
 	select {
 	case s.sem <- struct{}{}:
 		return true
-	default:
+	case <-ctx.Done():
 		return false
 	}
 }

internal/service/service.go

@@ -721,11 +721,7 @@ func resolveSessionMode(req ChatRequest, configured SessionMode) SessionMode {
 	if configured != SessionModeAuto {
 		return configured
 	}
-	hasTools := len(req.Tools) > 0 && req.ToolChoice.Mode != "none"
-	if hasTools || strings.TrimSpace(req.System) != "" || len(filteredMessages(req.Messages)) > 1 {
 	return SessionModeFresh
-	}
-	return SessionModeReuse
 }
 
 func extractLastUserImages(messages []ChatMessage) []Image {