fix(config): accept execApprovals.enabled="auto" in zod schema

extensions/discord/src/config-schema.test.ts

@@ -310,6 +310,15 @@ describe("discord config schema", () => {
     expect(cfg.execApprovals?.approvers).toEqual(["555"]);
   });
 
+  it.each([true, false, "auto"] as const)("accepts execApprovals.enabled=%s", (enabled) => {
+    const cfg = expectValidDiscordConfig({ execApprovals: { enabled } });
+    expect(cfg.execApprovals?.enabled).toBe(enabled);
+  });
+
+  it("rejects execApprovals.enabled with other string values", () => {
+    expectInvalidDiscordConfig({ execApprovals: { enabled: "on" } });
+  });
+
   it("rejects numeric IDs that are not valid non-negative safe integers", () => {
     const cases = [106232522769186816, -1, 123.45];
     for (const id of cases) {

src/config/zod-schema.approvals.ts

@@ -1,5 +1,7 @@
 import { z } from "zod";
 
+export const NativeExecApprovalEnableModeSchema = z.union([z.boolean(), z.literal("auto")]);
+
 const ExecApprovalForwardTargetSchema = z
   .object({
     channel: z.string().min(1),

src/config/zod-schema.providers-core.ts

@@ -8,6 +8,7 @@ import {
 } from "../shared/custom-command-config.js";
 import { normalizeOptionalString } from "../shared/string-coerce.js";
 import { ToolPolicySchema } from "./zod-schema.agent-runtime.js";
+import { NativeExecApprovalEnableModeSchema } from "./zod-schema.approvals.js";
 import {
   ChannelHealthMonitorSchema,
   ChannelHeartbeatVisibilitySchema,
@@ -248,7 +249,7 @@ export const TelegramAccountSchemaBase = z
     capabilities: TelegramCapabilitiesSchema.optional(),
     execApprovals: z
       .object({
-        enabled: z.boolean().optional(),
+        enabled: NativeExecApprovalEnableModeSchema.optional(),
         approvers: TelegramIdListSchema.optional(),
         agentFilter: z.array(z.string()).optional(),
         sessionFilter: z.array(z.string()).optional(),
@@ -681,7 +682,7 @@ export const DiscordAccountSchema = z
     healthMonitor: ChannelHealthMonitorSchema,
     execApprovals: z
       .object({
-        enabled: z.boolean().optional(),
+        enabled: NativeExecApprovalEnableModeSchema.optional(),
         approvers: DiscordIdListSchema.optional(),
         agentFilter: z.array(z.string()).optional(),
         sessionFilter: z.array(z.string()).optional(),
@@ -1023,7 +1024,7 @@ export const SlackAccountSchema = z
     capabilities: SlackCapabilitiesSchema.optional(),
     execApprovals: z
       .object({
-        enabled: z.boolean().optional(),
+        enabled: NativeExecApprovalEnableModeSchema.optional(),
         approvers: z.array(z.union([z.string(), z.number()])).optional(),
         agentFilter: z.array(z.string()).optional(),
         sessionFilter: z.array(z.string()).optional(),