fix(channels): require full token override for independence, trim whitespace tokens

- Named accounts must now override ALL base token fields (not just any
  one) to be considered independent. Partial overrides (e.g. only
  appToken when base has both botToken+appToken) are correctly treated
  as inheriting the base identity.
- Base token check now trims whitespace — '   ' is not a valid token.
- Added 2 test cases: partial override, whitespace-only tokens.

Addresses codex-connector P1+P2 on PR #30310.

src/channels/plugins/account-helpers.test.ts

@@ -88,7 +88,7 @@ describe("createAccountListHelpers", () => {
           testchannel: {
             botToken: "xoxb-base",
             appToken: "xapp-base",
-            accounts: { tank: { botToken: "xoxb-tank" } },
+            accounts: { tank: { botToken: "xoxb-tank", appToken: "xapp-tank" } },
           },
         },
       } as unknown as OpenClawConfig;
@@ -108,6 +108,32 @@ describe("createAccountListHelpers", () => {
       expect(listAccountIds(config)).toEqual(["teamA", "teamB"]);
     });
 
+    it("does NOT inject default when account partially overrides (only appToken)", () => {
+      const config = {
+        channels: {
+          testchannel: {
+            botToken: "xoxb-base",
+            appToken: "xapp-base",
+            accounts: { teamA: { appToken: "xapp-own" } },
+          },
+        },
+      } as unknown as OpenClawConfig;
+      // teamA overrides appToken but inherits botToken — still same bot identity
+      expect(listAccountIds(config)).toEqual(["teamA"]);
+    });
+
+    it("does NOT inject default when base token is whitespace-only", () => {
+      const config = {
+        channels: {
+          testchannel: {
+            botToken: "   ",
+            accounts: { teamA: {} },
+          },
+        },
+      } as unknown as OpenClawConfig;
+      expect(listAccountIds(config)).toEqual(["teamA"]);
+    });
+
     it("does NOT inject default when named accounts inherit base tokens (avoids duplicates)", () => {
       const config = {
         channels: {

src/channels/plugins/account-helpers.ts

@@ -55,12 +55,22 @@ export function createAccountListHelpers(
     // default would start a duplicate provider on the same credentials.
     const channel = cfg.channels?.[channelKey];
     const base = channel as Record<string, unknown> | undefined;
-    const hasBaseTokens = Boolean(base?.botToken || base?.appToken || base?.token);
-    if (hasBaseTokens) {
+    const isTruthy = (v: unknown): boolean =>
+      typeof v === "string" ? v.trim().length > 0 : Boolean(v);
+    // Identify which token fields the base config provides.
+    const baseTokenFields = (["botToken", "appToken", "token"] as const).filter((f) =>
+      isTruthy(base?.[f]),
+    );
+    if (baseTokenFields.length > 0) {
       const accounts = (base?.accounts ?? {}) as Record<string, Record<string, unknown>>;
       const everyAccountHasOwnTokens = ids.every((id) => {
         const acct = accounts[id];
-        return acct && Boolean(acct.botToken || acct.appToken || acct.token);
+        if (!acct) {
+          return false;
+        }
+        // An account is only independent if it overrides *every* base token
+        // field.  Partial overrides still inherit the remaining base tokens.
+        return baseTokenFields.every((f) => isTruthy(acct[f]));
       });
       if (everyAccountHasOwnTokens) {
         // Every named account has distinct credentials, so default won't