feat: add Kimi Code and web APIs

src/tools/registry.c

@@ -159,6 +159,14 @@ static const cst_tool_def_t TOOLS[] = {
      NULL,
      {{"todos", S, 1, "the whole list, one item per line"}},
      CST_TP_META, 0, cst_tool_todo_write, NULL, NO_DYN, NO_META},
+    {"web_search",
+     "Search the live web through the current Kimi or DeepSeek provider and "
+     "return titles, URLs and snippets. Use web_fetch to read a result.",
+     NULL,
+     {{"query", S, 1, "search query"},
+      {"count", I, 0, "number of results (default 5, max 20)"},
+      {"include_content", B, 0, "include provider-returned page content"}},
+     CST_TP_NET, 0, cst_tool_web_search, NULL, NO_DYN, NO_META},
     {"web_fetch",
      "Fetch an http(s) URL (docs, issues, APIs) and return its text; HTML "
      "is reduced to readable text.",