fix: update GroupActivationMode types across codebase

Extended type definitions to support new activation modes:
- SessionEntry.groupActivation
- StatusArgs.groupActivation
- sessions-patch error message

All TypeScript compilation errors resolved.

src/auto-reply/status.ts

@@ -59,7 +59,7 @@ type StatusArgs = {
   sessionEntry?: SessionEntry;
   sessionKey?: string;
   sessionScope?: SessionScope;
-  groupActivation?: "mention" | "always";
+  groupActivation?: "mention" | "always" | "replies" | "mention+replies" | "never";
   resolvedThink?: ThinkLevel;
   resolvedVerbose?: VerboseLevel;
   resolvedReasoning?: ReasoningLevel;

src/config/sessions/types.ts

@@ -54,7 +54,7 @@ export type SessionEntry = {
   authProfileOverride?: string;
   authProfileOverrideSource?: "auto" | "user";
   authProfileOverrideCompactionCount?: number;
-  groupActivation?: "mention" | "always";
+  groupActivation?: "mention" | "always" | "replies" | "mention+replies" | "never";
   groupActivationNeedsSystemIntro?: boolean;
   sendPolicy?: "allow" | "deny";
   queueMode?:

src/gateway/sessions-patch.ts

@@ -303,7 +303,9 @@ export async function applySessionsPatchToStore(params: {
     } else if (raw !== undefined) {
       const normalized = normalizeGroupActivation(String(raw));
       if (!normalized) {
-        return invalid('invalid groupActivation (use "mention"|"always")');
+        return invalid(
+          'invalid groupActivation (use "mention"|"always"|"replies"|"mention+replies"|"never")',
+        );
       }
       next.groupActivation = normalized;
     }