W21: anthropic Stream+Tools + --prompt batch + sanitizer fix + plugin unit tests (W21.1-W21.6)

- W21.1: ci-sanitize preset 独立 Linux-clang + ci-threadsan (TSan)
- W21.2: anthropic tool_use content_block 解析 + configure 缓存 tools_json
- W21.3: --prompt 非交互批处理模式
- W21.4: session auto-save 失败告警 + 当前目录 fallback
- W21.5: smoke 补 tool_calls 边界用例 4 块 12 断言
- W21.6: anthropic 11 块 78 CHECK + deepseek 12 块 78 CHECK

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

CMakePresets.json

@@ -45,15 +45,35 @@
         },
         {
             "name": "ci-sanitize",
-            "inherits": "conan-release",
             "displayName": "CI Sanitizer (ASan+UBSan)",
             "description": "AddressSanitizer + UndefinedBehaviorSanitizer Linux clang CI build",
+            "generator": "Ninja",
             "toolchainFile": "${sourceDir}/build/Release/conan_toolchain.cmake",
             "binaryDir": "${sourceDir}/build/ci-sanitize",
             "cacheVariables": {
+                "CMAKE_POLICY_DEFAULT_CMP0091": "NEW",
+                "CMAKE_BUILD_TYPE": "Release",
+                "CMAKE_C_COMPILER": "clang-18",
+                "CMAKE_CXX_COMPILER": "clang++-18",
                 "CMAKE_C_FLAGS": "-fsanitize=address,undefined -fno-omit-frame-pointer",
                 "CMAKE_CXX_FLAGS": "-fsanitize=address,undefined -fno-omit-frame-pointer"
             }
+        },
+        {
+            "name": "ci-threadsan",
+            "displayName": "CI ThreadSanitizer (TSan)",
+            "description": "ThreadSanitizer Linux clang CI build",
+            "generator": "Ninja",
+            "toolchainFile": "${sourceDir}/build/Release/conan_toolchain.cmake",
+            "binaryDir": "${sourceDir}/build/ci-threadsan",
+            "cacheVariables": {
+                "CMAKE_POLICY_DEFAULT_CMP0091": "NEW",
+                "CMAKE_BUILD_TYPE": "Release",
+                "CMAKE_C_COMPILER": "clang-18",
+                "CMAKE_CXX_COMPILER": "clang++-18",
+                "CMAKE_C_FLAGS": "-fsanitize=thread -fno-omit-frame-pointer",
+                "CMAKE_CXX_FLAGS": "-fsanitize=thread -fno-omit-frame-pointer"
+            }
         }
     ],
     "buildPresets": [
@@ -71,6 +91,11 @@
             "name": "ci-sanitize",
             "configurePreset": "ci-sanitize",
             "jobs": 0
+        },
+        {
+            "name": "ci-threadsan",
+            "configurePreset": "ci-threadsan",
+            "jobs": 0
         }
     ],
     "testPresets": [
@@ -97,6 +122,13 @@
             "execution": {
                 "jobs": 0
             }
+        },
+        {
+            "name": "ci-threadsan",
+            "configurePreset": "ci-threadsan",
+            "execution": {
+                "jobs": 0
+            }
         }
     ]
 }