Session修改：Mutex死锁修复+AGENTS更新

docs/FUSE_INSTALLATION.md

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+# FUSE-T Installation Guide
+
+## Prerequisites
+
+**Downloaded Files:**
+- `~/Downloads/fuse-t-1.2.6.pkg` (23MB) ✅
+- AJA System Test DMG ⚠️ (Need manual download)
+
+## Installation Steps
+
+### Step 1: Install FUSE-T
+
+```bash
+# Install from downloaded PKG
+sudo installer -pkg ~/Downloads/fuse-t-1.2.6.pkg -target /
+
+# Verify installation
+ls -la /usr/local/bin/fuse-t
+ls -la /usr/local/bin/nfs-t
+
+# Check version
+fuse-t --version  # Expected: 1.2.6
+nfs-t --version
+```
+
+**Expected Results:**
+- `/usr/local/bin/fuse-t` exists
+- `/usr/local/bin/nfs-t` exists
+- Version: 1.2.6
+
+### Step 2: Download AJA System Test
+
+**Manual Download Required:**
+1. Open browser: https://www.aja.com/en/products/aja-system-test
+2. Click "Download" button
+3. Save to ~/Downloads/AJA_System_Test.dmg
+4. Verify file size: ~50-100MB (not 457KB HTML)
+
+**Installation:**
+```bash
+# Mount DMG
+hdiutil attach ~/Downloads/AJA_System_Test.dmg
+
+# Copy to Applications
+cp -R /Volumes/AJA\ System\ Test/*.app /Applications/
+
+# Unmount
+hdiutil detach /Volumes/AJA\ System\ Test
+
+# Verify
+ls -la /Applications/AJA\ System\ Test.app
+```
+
+### Step 3: Test FUSE-T
+
+```bash
+# Test mount capability (use sshfs as example)
+brew install macos-fuse-t/homebrew-cask/sshfs-fuse-t
+
+# Mount test directory
+sshfs user@localhost:/tmp /tmp/sshfs_test
+
+# Verify
+mount | grep fuse
+
+# Unmount
+umount /tmp/sshfs_test
+```
+
+### Step 4: Permission Setup
+
+**System Settings:**
+1. Open System Settings → Privacy & Security
+2. Files and Folders → Network Volumes → Enable
+3. Full Disk Access → Add fuse-t (if needed)
+
+**Verify Permissions:**
+```bash
+# Check if Network Volumes permission is enabled
+ls -la /Network
+
+# Test NFS mount
+mount -t nfs localhost:/tmp /tmp/nfs_test
+umount /tmp/nfs_test
+```
+
+## Troubleshooting
+
+### Installation Fails
+
+**Symptom:** `installer: package not recognized`
+
+**Solution:**
+```bash
+# Re-download PKG
+curl -L -o ~/Downloads/fuse-t-1.2.6.pkg \
+  https://github.com/macos-fuse-t/fuse-t/releases/download/1.2.6/fuse-t-macos-installer-1.2.6.pkg
+
+# Retry installation
+sudo installer -pkg ~/Downloads/fuse-t-1.2.6.pkg -target /
+```
+
+### Permission Denied
+
+**Symptom:** `Operation not permitted`
+
+**Solution:**
+1. System Settings → Privacy & Security → Files and Folders
+2. Enable "Network Volumes" for Terminal.app
+3. Restart Terminal
+
+### Mount Fails
+
+**Symptom:** `mount: exec /usr/local/bin/fuse-t for /tmp/test: No such file or directory`
+
+**Solution:**
+```bash
+# Check fuse-t binary
+ls -la /usr/local/bin/fuse-t
+
+# If missing, reinstall
+sudo installer -pkg ~/Downloads/fuse-t-1.2.6.pkg -target /
+
+# Add to PATH
+export PATH="/usr/local/bin:$PATH"
+```
+
+### AJA System Test Not Found
+
+**Symptom:** `hdiutil: attach failed - image not recognized`
+
+**Cause:** Downloaded HTML page, not DMG
+
+**Solution:**
+1. Visit AJA website manually
+2. Click actual download button
+3. Verify file size >50MB
+
+## Verification Checklist
+
+| Check | Command | Expected |
+|-------|---------|----------|
+| fuse-t binary | `ls /usr/local/bin/fuse-t` | File exists |
+| fuse-t version | `fuse-t --version` | 1.2.6 |
+| nfs-t binary | `ls /usr/local/bin/nfs-t` | File exists |
+| Network Volumes | System Settings | Enabled |
+| AJA System Test | `ls /Applications/AJA\ System\ Test.app` | App exists |
+| FUSE mount works | `mount | grep fuse` | Mount entry |
+
+## Next Steps After Installation
+
+1. **Phase 2: Implement Real FUSE**
+   - Add fuse crate to Cargo.toml
+   - Implement MarkBaseFs operations
+   - Test with warren user (12,659 nodes)
+
+2. **Phase 3: Multi-user Mount**
+   - MountManager implementation
+   - 10 user concurrent test
+
+3. **Phase 4: Performance Test**
+   - AJA System Test 4K ProRes
+   - 600MB/s target validation
+
+---
+
+**Last Updated:** 2026-05-17
+**Status:** Ready for Manual Installation