feat: 日志持久化(6h归档) + purge增强(source_type/source_has_status过滤)

- ActivityRecorder 新增 LogPersister 后台线程，每10s增量写入logs/operations.*.log

- 日志每6小时自动gzip压缩归档

- memory_purge 新增 source_type / target_type / source_has_status 过滤条件

- 支持精准清理已归档任务的残留 HAS_STATE 关系

build/build_linux.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -e
+set -euo pipefail
 
 echo "===== Building TrulyMEM for Linux ====="
 
@@ -8,47 +8,102 @@ PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
 cd "$PROJECT_ROOT"
 echo "Project root: $PROJECT_ROOT"
 
+# ── 前置检查 ──
 if ! command -v python3 &> /dev/null; then
     echo "Error: python3 not found"; exit 1
 fi
 
+if [ ! -f requirements.txt ]; then
+    echo "Error: requirements.txt not found in $PROJECT_ROOT"; exit 1
+fi
+
+# ── 检测 python3-venv ──
+VENV_AVAILABLE=false
+if python3 -c "import ensurepip" 2>/dev/null && python3 -m venv --help &>/dev/null; then
+    VENV_AVAILABLE=true
+else
+    echo "⚠️  python3-venv 未安装（或缺少 ensurepip），建议安装以获得干净构建环境："
+    echo "   sudo apt install python3-venv    # Debian/Ubuntu"
+    echo "   sudo dnf install python3-virtualenv  # Fedora"
+    echo "将使用系统 Python 环境继续（依赖全局包）..."
+    echo ""
+fi
+
 # ── 尝试 venv 隔离构建，失败则用系统环境 ──
 USE_VENV=false
-if python3 -m venv --help &>/dev/null; then
+if [ "$VENV_AVAILABLE" = true ]; then
     VENV_DIR="$PROJECT_ROOT/.venv_build"
+    echo "Creating virtual environment..."
     if python3 -m venv "$VENV_DIR" 2>/dev/null; then
         source "$VENV_DIR/bin/activate"
         USE_VENV=true
-        echo "Using virtual environment"
+        echo "✅ Using virtual environment: $VENV_DIR"
         pip install --upgrade pip -q
         pip install -r requirements.txt -q
     else
-        echo "Warning: venv creation failed, falling back to system Python"
+        echo "⚠️  venv creation failed, falling back to system Python"
     fi
-else
-    echo "Warning: python3-venv not available, falling back to system Python"
 fi
 
 if [ "$USE_VENV" = false ]; then
+    echo "Installing dependencies (system Python)..."
     pip install -r requirements.txt --break-system-packages -q 2>/dev/null || \
-        pip install -r requirements.txt -q 2>/dev/null || true
+        pip install -r requirements.txt -q 2>/dev/null || {
+            echo "⚠️  pip install failed, trying pip3..."
+            pip3 install -r requirements.txt --break-system-packages -q 2>/dev/null || \
+            pip3 install -r requirements.txt -q 2>/dev/null || \
+            echo "⚠️  Some dependencies may be missing; build will proceed anyway"
+        }
 fi
 
+# ── 清理旧构建 ──
+echo ""
 echo "Cleaning previous builds..."
 rm -rf dist/ build/trulymem/ 2>/dev/null || true
 
+# ── PyInstaller 构建 ──
+echo ""
 echo "================================"
 echo "Building TrulyMEM (TUI + Web embedded)"
 echo "================================"
 python3 -m PyInstaller --clean build/trulymem.spec --noconfirm
 
+# ── 创建 Linux `.desktop` 文件（打包图标不能嵌入 ELF，通过 .desktop 引用）──
+echo ""
+echo "Generating .desktop file for Linux..."
+BINARY_PATH="$(cd dist && pwd)/TrulyMEM"
+ICON_PATH="$(cd pic && pwd)/image.png"
+
+cat > "dist/TrulyMEM.desktop" <<EOF
+[Desktop Entry]
+Name=TrulyMEM
+Comment=True Human Memory - TUI & Web Mode
+Exec=${BINARY_PATH}
+Icon=${ICON_PATH}
+Terminal=true
+Type=Application
+Categories=Utility;Office;
+StartupNotify=true
+EOF
+
+chmod +x "dist/TrulyMEM.desktop"
+echo "✅ dist/TrulyMEM.desktop created (icon: pic/image.png)"
+
+# ── 构建完成 ──
+echo ""
 echo "================================"
 echo "===== Build Complete ====="
-echo "Binary: dist/TrulyMEM"
-ls -la dist/
+echo "Binary:     dist/TrulyMEM"
+echo "Desktop:    dist/TrulyMEM.desktop"
+echo "------------------------------"
+ls -lh dist/ 2>/dev/null || ls -la dist/
+echo "================================"
 
+# ── 清理 venv ──
 if [ "$USE_VENV" = true ]; then
     deactivate 2>/dev/null || true
     rm -rf "$VENV_DIR"
+    echo "Virtual environment cleaned up."
 fi
-echo "Build finished successfully!"
+
+echo "Build finished successfully!"