diff --git a/apps/web/app/versions/[id]/page.tsx b/apps/web/app/versions/[id]/page.tsx
index 5223b83..fb97101 100644
--- a/apps/web/app/versions/[id]/page.tsx
+++ b/apps/web/app/versions/[id]/page.tsx
@@ -208,7 +208,7 @@ export default function VersionDetailPage() {
             // DevTask 真实统计
             const versionDevTasks = devTasks.filter((t) => versionReqs.some((r) => r.id === t.requirementId));
             const devTaskTodo = versionDevTasks.filter((t) => t.status === 'todo').length;
-            const devTaskInProgress = versionDevTasks.filter((t) => t.status === 'in_progress').length;
+            const devTaskInProgress = versionDevTasks.filter((t) => t.status === 'in_progress' || t.status === 'testing').length;
             const devTaskBlocked = versionDevTasks.filter((t) => t.isBlocked).length;
             const versionBugs = bugs.filter((b) => b.versionId === version.id);
             const bugOpenCount = versionBugs.filter((b) => b.status === 'open' || b.status === 'fixing').length;
diff --git a/apps/web/components/bug/BugCreateModal.tsx b/apps/web/components/bug/BugCreateModal.tsx
index a56f88d..327eeaa 100644
--- a/apps/web/components/bug/BugCreateModal.tsx
+++ b/apps/web/components/bug/BugCreateModal.tsx
@@ -1,7 +1,7 @@
 'use client';
 
-import { useState, useMemo } from 'react';
-import { X } from 'lucide-react';
+import { useState, useMemo, useRef } from 'react';
+import { X, ImagePlus, Trash2 } from 'lucide-react';
 import { useBugStore } from '@/stores/useBugStore';
 import { useTestCaseStore } from '@/stores/useTestCaseStore';
 import { useDevTaskStore } from '@/stores/useDevTaskStore';
@@ -27,7 +27,6 @@ export function BugCreateModal({ testCaseId, onClose }: Props) {
   const tc = testCases.find((c) => c.id === testCaseId);
   const requirement = requirements.find((r) => r.id === tc?.requirementId);
 
-  // 推导默认负责人
   const defaultAssignee = useMemo(() => {
     if (!tc) return '';
     const reqTasks = devTasks.filter((t) => t.requirementId === tc.requirementId);
@@ -42,9 +41,23 @@ export function BugCreateModal({ testCaseId, onClose }: Props) {
   const [severity, setSeverity] = useState<BugSeverity>('major');
   const [priority, setPriority] = useState<Priority>(tc?.priority || 'P1');
   const [assigneeId, setAssigneeId] = useState(defaultAssignee);
+  const [images, setImages] = useState<string[]>([]);
+  const fileRef = useRef<HTMLInputElement>(null);
 
   const canSubmit = title.trim() && description.trim() && assigneeId;
 
+  const handleFiles = (files: FileList | null) => {
+    if (!files) return;
+    Array.from(files).forEach((file) => {
+      if (!file.type.startsWith('image/')) return;
+      const reader = new FileReader();
+      reader.onload = () => {
+        setImages((prev) => [...prev, reader.result as string]);
+      };
+      reader.readAsDataURL(file);
+    });
+  };
+
   const handleSubmit = () => {
     if (!canSubmit) return;
     createBug({
@@ -57,19 +70,19 @@ export function BugCreateModal({ testCaseId, onClose }: Props) {
       priority,
       reportedBy: user?.name || '系统',
       assigneeId,
-    });
+      images: images.length > 0 ? images : undefined,
+    }, user?.name || '系统');
     onClose();
   };
 
   return (
     <div className="fixed inset-0 z-[60] flex items-center justify-center bg-black/40" onClick={onClose}>
-      <div className="w-full max-w-md rounded-2xl bg-[var(--bg-card)] border border-[var(--line)] p-6 shadow-[var(--shadow-md)]" onClick={(e) => e.stopPropagation()}>
+      <div className="w-full max-w-2xl max-h-[90vh] overflow-y-auto rounded-2xl bg-[var(--bg-card)] border border-[var(--line)] p-6 shadow-[var(--shadow-md)]" onClick={(e) => e.stopPropagation()}>
         <div className="flex items-center justify-between mb-4">
           <h3 className="text-[14px] font-semibold text-[var(--ink)]">提交 Bug</h3>
           <button onClick={onClose} className="rounded-md p-1 hover:bg-[var(--bg-subtle)]"><X className="h-4 w-4 text-[var(--ink-muted)]" /></button>
         </div>
 
-        {/* 只读关联信息 */}
         <div className="rounded-lg bg-[var(--bg-subtle)] px-3 py-2 mb-4 space-y-1 text-[12px]">
           <div><span className="text-[var(--ink-muted)]">关联用例：</span><span className="text-[var(--ink)]">{tc?.caseNo} {tc?.title}</span></div>
           {requirement && <div><span className="text-[var(--ink-muted)]">关联需求：</span><span className="text-[var(--ink)]">{requirement.code} {requirement.title}</span></div>}
@@ -82,8 +95,39 @@ export function BugCreateModal({ testCaseId, onClose }: Props) {
           </div>
           <div>
             <label className="block text-[12px] text-[var(--ink-soft)] mb-1">Bug 描述 *</label>
-            <textarea rows={3} value={description} onChange={(e) => setDescription(e.target.value)} className="w-full rounded-lg border border-[var(--line)] bg-[var(--bg)] px-3 py-2 text-[13px] focus:border-[var(--accent)] focus:outline-none resize-none" placeholder="复现步骤、实际结果、预期结果" />
+            <textarea rows={5} value={description} onChange={(e) => setDescription(e.target.value)} className="w-full rounded-lg border border-[var(--line)] bg-[var(--bg)] px-3 py-2 text-[13px] focus:border-[var(--accent)] focus:outline-none resize-none" placeholder="复现步骤、实际结果、预期结果" />
           </div>
+
+          {/* 图片上传 */}
+          <div>
+            <label className="block text-[12px] text-[var(--ink-soft)] mb-1">截图附件</label>
+            <div
+              className="rounded-lg border-2 border-dashed border-[var(--line)] p-4 text-center cursor-pointer hover:border-[var(--accent)] hover:bg-[var(--bg-subtle)] transition-colors"
+              onClick={() => fileRef.current?.click()}
+              onDragOver={(e) => { e.preventDefault(); e.stopPropagation(); }}
+              onDrop={(e) => { e.preventDefault(); e.stopPropagation(); handleFiles(e.dataTransfer.files); }}
+            >
+              <ImagePlus className="h-6 w-6 text-[var(--ink-muted)] mx-auto mb-1" />
+              <span className="text-[12px] text-[var(--ink-muted)]">点击或拖拽上传图片</span>
+              <input ref={fileRef} type="file" accept="image/*" multiple className="hidden" onChange={(e) => handleFiles(e.target.files)} />
+            </div>
+            {images.length > 0 && (
+              <div className="flex flex-wrap gap-2 mt-2">
+                {images.map((src, i) => (
+                  <div key={i} className="relative group">
+                    <img src={src} alt={`截图${i + 1}`} className="h-20 w-20 object-cover rounded-lg border border-[var(--line)]" />
+                    <button
+                      onClick={() => setImages((prev) => prev.filter((_, j) => j !== i))}
+                      className="absolute -top-1.5 -right-1.5 h-5 w-5 flex items-center justify-center rounded-full bg-red-500 text-white opacity-0 group-hover:opacity-100 transition-opacity"
+                    >
+                      <Trash2 className="h-3 w-3" />
+                    </button>
+                  </div>
+                ))}
+              </div>
+            )}
+          </div>
+
           <div className="grid grid-cols-3 gap-3">
             <div>
               <label className="block text-[12px] text-[var(--ink-soft)] mb-1">严重程度</label>
diff --git a/apps/web/components/bug/BugDetailDrawer.tsx b/apps/web/components/bug/BugDetailDrawer.tsx
index 4ba6dbe..b87676b 100644
--- a/apps/web/components/bug/BugDetailDrawer.tsx
+++ b/apps/web/components/bug/BugDetailDrawer.tsx
@@ -1,23 +1,35 @@
 'use client';
 
 import { useState } from 'react';
-import { X, Link2, ChevronRight } from 'lucide-react';
+import { X, Link2, ChevronRight, ArrowRightLeft } from 'lucide-react';
 import { BugStatusBadge } from './BugStatusBadge';
 import { useBugStore } from '@/stores/useBugStore';
 import { useTestCaseStore } from '@/stores/useTestCaseStore';
 import { useRequirementStore } from '@/stores/useRequirementStore';
+import { useMemberStore } from '@/stores/useMemberStore';
+import { useAuthStore } from '@/stores/useAuthStore';
 import { BUG_ALLOWED_TRANSITIONS, BUG_STATUS_LABEL, BUG_SEVERITY_LABEL, BUG_SEVERITY_COLOR } from '@/lib/bug';
 import type { BugStatus } from '@/lib/bug';
 
+const LOG_ACTION_LABEL: Record<string, string> = {
+  create: '创建',
+  status_change: '状态变更',
+  transfer: '转交',
+  resolve: '修复',
+};
+
 interface Props {
   bugId: string;
   onClose: () => void;
 }
 
 export function BugDetailDrawer({ bugId, onClose }: Props) {
-  const { bugs, changeStatus } = useBugStore();
+  const { bugs, changeStatus, transferBug } = useBugStore();
   const { testCases } = useTestCaseStore();
   const { requirements } = useRequirementStore();
+  const { members } = useMemberStore();
+  const user = useAuthStore((s) => s.user);
+  const operator = user?.name || '系统';
 
   const bug = bugs.find((b) => b.id === bugId);
   if (!bug) return null;
@@ -28,17 +40,29 @@ export function BugDetailDrawer({ bugId, onClose }: Props) {
 
   const [resolution, setResolution] = useState(bug.resolution || '');
   const [showResolutionInput, setShowResolutionInput] = useState(false);
+  const [showTransfer, setShowTransfer] = useState(false);
+  const [transferTo, setTransferTo] = useState('');
+  const [transferRemark, setTransferRemark] = useState('');
+  const [lightboxSrc, setLightboxSrc] = useState<string | null>(null);
 
   const handleTransition = (to: BugStatus) => {
     if (to === 'fixed') { setShowResolutionInput(true); return; }
-    changeStatus(bug.id, to);
+    changeStatus(bug.id, to, operator);
   };
 
   const confirmFix = () => {
-    changeStatus(bug.id, 'fixed', { resolution: resolution.trim() || undefined });
+    changeStatus(bug.id, 'fixed', operator, { resolution: resolution.trim() || undefined });
     setShowResolutionInput(false);
   };
 
+  const handleTransfer = () => {
+    if (!transferTo) return;
+    transferBug(bug.id, transferTo, operator, transferRemark.trim() || undefined);
+    setShowTransfer(false);
+    setTransferTo('');
+    setTransferRemark('');
+  };
+
   return (
     <div className="fixed inset-0 z-50 flex justify-end" onClick={onClose}>
       <div className="w-full max-w-md h-full bg-[var(--bg)] border-l border-[var(--line)] shadow-[var(--shadow-lg)] flex flex-col" onClick={(e) => e.stopPropagation()}>
@@ -87,6 +111,11 @@ export function BugDetailDrawer({ bugId, onClose }: Props) {
                     {BUG_STATUS_LABEL[s]}
                   </button>
                 ))}
+                {bug.status !== 'closed' && bug.status !== 'rejected' && (
+                  <button onClick={() => setShowTransfer(!showTransfer)} className="h-8 px-3 rounded-lg text-[12px] font-medium border border-[var(--line)] text-[var(--ink-soft)] hover:bg-[var(--bg-subtle)] flex items-center gap-1">
+                    <ArrowRightLeft className="h-3 w-3" />转交
+                  </button>
+                )}
               </div>
             )}
 
@@ -99,6 +128,21 @@ export function BugDetailDrawer({ bugId, onClose }: Props) {
                 </div>
               </div>
             )}
+
+            {showTransfer && (
+              <div className="space-y-2 pt-1 border-t border-[var(--line)]">
+                <div className="text-[11px] text-[var(--ink-muted)]">转交给：</div>
+                <select value={transferTo} onChange={(e) => setTransferTo(e.target.value)} className="h-8 w-full rounded-lg border border-[var(--line)] px-3 text-[12px] focus:border-[var(--accent)] focus:outline-none">
+                  <option value="">选择接收人</option>
+                  {members.filter((m) => m.name !== bug.assigneeId).map((m) => <option key={m.id} value={m.name}>{m.name}</option>)}
+                </select>
+                <input value={transferRemark} onChange={(e) => setTransferRemark(e.target.value)} placeholder="转交备注（可选）" className="h-8 w-full rounded-lg border border-[var(--line)] px-3 text-[12px] focus:border-[var(--accent)] focus:outline-none" />
+                <div className="flex gap-2">
+                  <button onClick={handleTransfer} disabled={!transferTo} className="h-8 px-3 rounded-lg text-[11px] font-medium bg-blue-500 text-white disabled:opacity-50">确认转交</button>
+                  <button onClick={() => setShowTransfer(false)} className="h-8 px-2 text-[11px] text-[var(--ink-muted)]">取消</button>
+                </div>
+              </div>
+            )}
           </div>
 
           {/* 基本信息 */}
@@ -107,9 +151,9 @@ export function BugDetailDrawer({ bugId, onClose }: Props) {
             <div className="grid grid-cols-2 gap-y-3 gap-x-4 text-[12px]">
               <div><span className="text-[var(--ink-muted)]">提交人：</span><span className="text-[var(--ink)]">{bug.reportedBy}</span></div>
               <div><span className="text-[var(--ink-muted)]">修复人：</span><span className="text-[var(--ink)] font-medium">{bug.assigneeId}</span></div>
-              <div><span className="text-[var(--ink-muted)]">提交：</span><span className="text-[var(--ink)]">{bug.createdAt.slice(0, 10)}</span></div>
-              {bug.resolvedAt && <div><span className="text-[var(--ink-muted)]">修复：</span><span className="text-[var(--ink)]">{bug.resolvedAt}</span></div>}
-              {bug.closedAt && <div><span className="text-[var(--ink-muted)]">关闭：</span><span className="text-emerald-600">{bug.closedAt}</span></div>}
+              <div><span className="text-[var(--ink-muted)]">提交：</span><span className="text-[var(--ink)]">{bug.createdAt.slice(0, 16).replace('T', ' ')}</span></div>
+              {bug.resolvedAt && <div><span className="text-[var(--ink-muted)]">修复：</span><span className="text-[var(--ink)]">{bug.resolvedAt.slice(0, 16).replace('T', ' ')}</span></div>}
+              {bug.closedAt && <div><span className="text-[var(--ink-muted)]">关闭：</span><span className="text-emerald-600">{bug.closedAt.slice(0, 16).replace('T', ' ')}</span></div>}
             </div>
           </div>
 
@@ -119,6 +163,18 @@ export function BugDetailDrawer({ bugId, onClose }: Props) {
             <p className="text-[12px] text-[var(--ink-soft)] leading-relaxed whitespace-pre-wrap">{bug.description}</p>
           </div>
 
+          {/* 截图 */}
+          {bug.images && bug.images.length > 0 && (
+            <div className="rounded-xl border border-[var(--line)] bg-[var(--bg-card)] p-4">
+              <div className="text-[10px] text-[var(--ink-muted)] uppercase tracking-wide mb-2">截图附件</div>
+              <div className="flex flex-wrap gap-2">
+                {bug.images.map((src, i) => (
+                  <img key={i} src={src} alt={`截图${i + 1}`} className="h-24 w-24 object-cover rounded-lg border border-[var(--line)] cursor-pointer hover:ring-2 hover:ring-[var(--accent)]" onClick={() => setLightboxSrc(src)} />
+                ))}
+              </div>
+            </div>
+          )}
+
           {/* 修复说明 */}
           {bug.resolution && (
             <div className="rounded-xl border border-emerald-200 bg-emerald-50 p-4">
@@ -126,8 +182,37 @@ export function BugDetailDrawer({ bugId, onClose }: Props) {
               <p className="text-[12px] text-emerald-800 leading-relaxed whitespace-pre-wrap">{bug.resolution}</p>
             </div>
           )}
+
+          {/* 操作日志 */}
+          {bug.logs && bug.logs.length > 0 && (
+            <div className="rounded-xl border border-[var(--line)] bg-[var(--bg-card)] p-4">
+              <div className="text-[10px] text-[var(--ink-muted)] uppercase tracking-wide mb-3">操作日志</div>
+              <div className="space-y-2.5">
+                {[...bug.logs].reverse().map((log) => (
+                  <div key={log.id} className="flex gap-2.5 text-[11px]">
+                    <span className="text-[var(--ink-muted)] tabular-nums shrink-0 w-[110px]">{log.createdAt.slice(0, 16).replace('T', ' ')}</span>
+                    <div className="flex-1">
+                      <span className="font-medium text-[var(--ink)]">{log.operator}</span>
+                      <span className="text-[var(--ink-soft)]"> {LOG_ACTION_LABEL[log.action] || log.action}</span>
+                      {log.fromValue && log.toValue && (
+                        <span className="text-[var(--ink-muted)]"> {log.fromValue} → {log.toValue}</span>
+                      )}
+                      {log.remark && <span className="text-[var(--ink-muted)]"> ({log.remark})</span>}
+                    </div>
+                  </div>
+                ))}
+              </div>
+            </div>
+          )}
         </div>
       </div>
+
+      {/* Lightbox */}
+      {lightboxSrc && (
+        <div className="fixed inset-0 z-[70] flex items-center justify-center bg-black/70" onClick={() => setLightboxSrc(null)}>
+          <img src={lightboxSrc} alt="大图预览" className="max-h-[85vh] max-w-[85vw] rounded-lg shadow-2xl" />
+        </div>
+      )}
     </div>
   );
 }
diff --git a/apps/web/lib/bug.ts b/apps/web/lib/bug.ts
index 37372dc..4cd34ea 100644
--- a/apps/web/lib/bug.ts
+++ b/apps/web/lib/bug.ts
@@ -3,6 +3,16 @@ import type { Priority } from './derive';
 export type BugStatus = 'open' | 'fixing' | 'fixed' | 'verifying' | 'closed' | 'rejected';
 export type BugSeverity = 'critical' | 'major' | 'minor' | 'trivial';
 
+export interface BugLog {
+  id: string;
+  action: 'create' | 'status_change' | 'transfer' | 'resolve';
+  fromValue?: string;
+  toValue?: string;
+  operator: string;
+  remark?: string;
+  createdAt: string;
+}
+
 export interface Bug {
   id: string;
   bugNo: string;
@@ -16,6 +26,8 @@ export interface Bug {
   reportedBy: string;
   assigneeId: string;
   status: BugStatus;
+  images?: string[];
+  logs?: BugLog[];
   resolvedAt?: string;
   closedAt?: string;
   resolution?: string;
diff --git a/apps/web/stores/useBugStore.ts b/apps/web/stores/useBugStore.ts
index 0c56b10..3e70173 100644
--- a/apps/web/stores/useBugStore.ts
+++ b/apps/web/stores/useBugStore.ts
@@ -1,6 +1,6 @@
 'use client';
 import { create } from 'zustand';
-import type { Bug, BugStatus } from '@/lib/bug';
+import type { Bug, BugStatus, BugLog } from '@/lib/bug';
 import { canBugTransition, generateBugNo } from '@/lib/bug';
 
 const STORAGE_KEY = 'ftb_bugs_v1';
@@ -17,13 +17,18 @@ function loadLocal(): Bug[] | null {
   return null;
 }
 
+function makeLog(action: BugLog['action'], operator: string, from?: string, to?: string, remark?: string): BugLog {
+  return { id: `log-${Date.now()}-${Math.random().toString(36).slice(2, 6)}`, action, fromValue: from, toValue: to, operator, remark, createdAt: new Date().toISOString() };
+}
+
 interface BugState {
   bugs: Bug[];
   fetchBugs: () => void;
-  createBug: (data: Omit<Bug, 'id' | 'bugNo' | 'createdAt' | 'updatedAt' | 'status'>) => Bug;
+  createBug: (data: Omit<Bug, 'id' | 'bugNo' | 'createdAt' | 'updatedAt' | 'status' | 'logs'>, operator: string) => Bug;
   updateBug: (id: string, data: Partial<Bug>) => void;
   deleteBug: (id: string) => void;
-  changeStatus: (id: string, to: BugStatus, extra?: { resolution?: string }) => { ok: boolean; message?: string };
+  changeStatus: (id: string, to: BugStatus, operator: string, extra?: { resolution?: string }) => { ok: boolean; message?: string };
+  transferBug: (id: string, newAssigneeId: string, operator: string, remark?: string) => { ok: boolean; message?: string };
   getByTestCase: (caseId: string) => Bug[];
   getByVersion: (versionId: string) => Bug[];
   getByAssignee: (assigneeId: string) => Bug[];
@@ -37,14 +42,16 @@ export const useBugStore = create<BugState>((set, get) => ({
     if (cached) set({ bugs: cached });
   },
 
-  createBug: (data) => {
+  createBug: (data, operator) => {
     const list = get().bugs;
     const now = new Date().toISOString();
+    const log = makeLog('create', operator);
     const bug: Bug = {
       ...data,
       id: `bug-${Date.now()}`,
       bugNo: generateBugNo(list),
       status: 'open',
+      logs: [log],
       createdAt: now,
       updatedAt: now,
     };
@@ -68,21 +75,32 @@ export const useBugStore = create<BugState>((set, get) => ({
     saveLocal(updated);
   },
 
-  changeStatus: (id, to, extra) => {
+  changeStatus: (id, to, operator, extra) => {
     const bug = get().bugs.find((b) => b.id === id);
     if (!bug) return { ok: false, message: 'Bug不存在' };
     if (!canBugTransition(bug.status, to)) {
       return { ok: false, message: `不允许从「${bug.status}」流转到「${to}」` };
     }
-    const today = new Date().toISOString().slice(0, 10);
+    const now = new Date().toISOString();
     const patch: Partial<Bug> = { status: to };
-    if (to === 'fixed') patch.resolvedAt = today;
-    if (to === 'closed') patch.closedAt = today;
+    if (to === 'fixed') patch.resolvedAt = now;
+    if (to === 'closed') patch.closedAt = now;
     if (extra?.resolution) patch.resolution = extra.resolution;
+    const log = makeLog(to === 'fixed' ? 'resolve' : 'status_change', operator, bug.status, to, extra?.resolution);
+    patch.logs = [...(bug.logs || []), log];
     get().updateBug(id, patch);
     return { ok: true };
   },
 
+  transferBug: (id, newAssigneeId, operator, remark) => {
+    const bug = get().bugs.find((b) => b.id === id);
+    if (!bug) return { ok: false, message: 'Bug不存在' };
+    if (bug.assigneeId === newAssigneeId) return { ok: false, message: '已是当前负责人' };
+    const log = makeLog('transfer', operator, bug.assigneeId, newAssigneeId, remark);
+    get().updateBug(id, { assigneeId: newAssigneeId, logs: [...(bug.logs || []), log] });
+    return { ok: true };
+  },
+
   getByTestCase: (caseId) => {
     return get().bugs.filter((b) => b.testCaseId === caseId);
   },