Wave 8: tech-debt audits, core unit tests, CLI pipe input (W11.1-W11.7)

- W11.1 context_plugin audit (architect-huang): 3 findings on ABI exception
  safety, strdup null checks, dead g_max_tokens variable. Rating: B.
- W11.2 config audit (engineer-chen): identified 74-line TOML parser
  duplication between config_plugin and config_store, dual-store data
  isolation, dangling c_str() risk. Rating: C.
- W11.3 event_bus + service_registry unit tests (qa-liu): 12 cases total,
  ctest coverage 2 -> 4 targets, 100% pass.
- W11.4 CLI stdin pipe mode (engineer-zhao): isatty detection, single-shot
  inference path with exit codes 0/1/2/3.
- W11.6 scripts/refresh_status.py (engineer-li): 431-line generator that
  scans 16 profile.md + 5 group.md to regenerate STATUS.md.
- W11.7 destructive testing (qa-xu): 10 input scenarios PASS, found bin
  copy mismatch (BUG-1) plus 3 minor UX bugs for follow-up.

Verified: cmake build 0 error, ctest 4/4 pass.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

dstalk-cli/src/main.cpp

@@ -349,19 +349,22 @@ int main(int argc, char* argv[])
     SetConsoleMode(hOut, mode | ENABLE_VIRTUAL_TERMINAL_PROCESSING);
 #endif
 
-    // ---- C1: batch 模式检测 ----
+    // ---- C1: batch/pipe 模式检测 ----
+#ifdef _WIN32
+    bool pipe_mode = (_isatty(_fileno(stdin)) == 0);
+#else
+    bool pipe_mode = (isatty(fileno(stdin)) == 0);
+#endif
     bool batch_mode = false;
-    for (int i = 1; i < argc; ++i) {
-        if (std::strcmp(argv[i], "--batch") == 0) {
-            batch_mode = true;
-            break;
+    if (!pipe_mode) {
+        for (int i = 1; i < argc; ++i) {
+            if (std::strcmp(argv[i], "--batch") == 0) {
+                batch_mode = true;
+                break;
+            }
         }
     }
-#ifdef _WIN32
-    if (!batch_mode && _isatty(_fileno(stdin)) == 0) batch_mode = true;
-#else
-    if (!batch_mode && isatty(fileno(stdin)) == 0) batch_mode = true;
-#endif
+    if (pipe_mode) batch_mode = true;
 
     // ---- B1: 安装 Ctrl+C 处理 ----
 #ifdef _WIN32
@@ -435,6 +438,40 @@ int main(int argc, char* argv[])
         std::printf("\n");
     }
 
+    // ---- B3: 管道输入模式 (非交互) ----
+    if (pipe_mode) {
+        std::string input;
+        char buf[4096];
+        while (std::fgets(buf, sizeof(buf), stdin)) {
+            input += buf;
+        }
+        if (input.empty()) {
+            std::fprintf(stderr, "empty prompt\n");
+            dstalk_shutdown();
+            return 1;
+        }
+        if (!g_ai || !g_session) {
+            std::fprintf(stderr, CLR_RED "[ERROR] AI or session service unavailable\n" CLR_RESET);
+            dstalk_shutdown();
+            return EXIT_SVC_UNAVAIL;
+        }
+        int history_count = 0;
+        const dstalk_message_t* history = g_session->history(&history_count);
+        dstalk_chat_result_t result = g_ai->chat(history, history_count, input.c_str(), nullptr);
+        if (result.ok) {
+            std::printf("%s\n", result.content ? result.content : "");
+            g_ai->free_result(&result);
+            dstalk_shutdown();
+            return EXIT_OK;
+        } else {
+            std::fprintf(stderr, CLR_RED "[ERROR] AI error: %s\n" CLR_RESET,
+                        result.error ? result.error : "unknown");
+            g_ai->free_result(&result);
+            dstalk_shutdown();
+            return EXIT_AI_ERROR;
+        }
+    }
+
     char buffer[8192];
     while (true) {
         // B1: 检查退出标志