fix(hub): ship checklist via cph_hub todo_write MCP tool

Native Claude TodoWrite is not registered in headless agent mode even with
--tools default. Add mcp__cph_hub__todo_write (always enabled), mirror the
TodoWrite schema, instruct multi-step runs to use it, and keep the Feishu
progress panel parsing both native and hub tool names.

hub/src/agent/roleTools.ts

@@ -19,6 +19,7 @@ export const CPH_HUB_MCP_TOOL_IDS = [
   "pbank_search_problems",
   "pbank_get_problem",
   "pbank_get_many_problems",
+  "todo_write",
 ] as const;
 
 export type CphHubMcpToolId = (typeof CPH_HUB_MCP_TOOL_IDS)[number];
@@ -62,6 +63,9 @@ const ROLE_TOOL_TO_CPH_HUB_MCP_TOOLS: Readonly<Record<string, readonly CphHubMcp
   pbank_search_problems: ["pbank_search_problems"],
   pbank_get_problem: ["pbank_get_problem"],
   pbank_get_many_problems: ["pbank_get_many_problems"],
+  todo: ["todo_write"],
+  TodoWrite: ["todo_write"],
+  todo_write: ["todo_write"],
   "mcp__cph_hub__send_file": ["send_file"],
   "mcp__cph_hub__feishu_read_context": ["feishu_read_context"],
   "mcp__cph_hub__feishu_download_resource": ["feishu_download_resource"],
@@ -70,6 +74,7 @@ const ROLE_TOOL_TO_CPH_HUB_MCP_TOOLS: Readonly<Record<string, readonly CphHubMcp
   "mcp__cph_hub__pbank_search_problems": ["pbank_search_problems"],
   "mcp__cph_hub__pbank_get_problem": ["pbank_get_problem"],
   "mcp__cph_hub__pbank_get_many_problems": ["pbank_get_many_problems"],
+  "mcp__cph_hub__todo_write": ["todo_write"],
 };
 
 const SUPPORTED_ROLE_TOOLS = new Set([
@@ -109,9 +114,13 @@ export function claudeSdkToolConfigForRole(
 export function cphHubMcpToolsForRole(
   roleTools: readonly string[] | null | undefined,
 ): readonly CphHubMcpToolId[] {
-  if (roleTools === undefined || roleTools === null) return [...CPH_HUB_MCP_TOOL_IDS];
+  // Always expose hub-side todo_write so progress cards work even when the
+  // native Claude TodoWrite tool is not registered in headless agent mode.
+  if (roleTools === undefined || roleTools === null) {
+    return [...CPH_HUB_MCP_TOOL_IDS];
+  }
 
-  const tools: CphHubMcpToolId[] = [];
+  const tools: CphHubMcpToolId[] = ["todo_write"];
   for (const roleTool of roleTools) {
     assertSupportedRoleTool(roleTool);
     for (const mcpTool of ROLE_TOOL_TO_CPH_HUB_MCP_TOOLS[roleTool] ?? []) {