refactor: unify tool reason requirements

.opencode/tools/propose_task_action.ts

@@ -1,3 +1,4 @@
+import { toolReason } from "../tool-reason.js";
 import { tool } from "../tool.js";
 import { getInternalBridgeConfig } from "../internalBridge.js";
 import { proposedTaskActionSchema } from "../../src/product/operational-task-contract.js";
@@ -7,7 +8,7 @@ export default tool({
   args: {
     request_id: tool.schema.string().describe("Stable UUID idempotency key for this proposal"),
     kind: tool.schema.enum(["create_work_order", "issue_command"]),
-    reason: tool.schema.string(),
+    reason: toolReason.describe("One concise sentence explaining the business basis for this proposed action."),
     payload: tool.schema.union([
       tool.schema.object({
         title: tool.schema.string(),