fix: polish reply threading + tool dedupe (thanks @mneves75) (#326)

src/config/types.ts

@@ -483,6 +483,8 @@ export type SlackConfig = {
   reactionNotifications?: SlackReactionNotificationMode;
   /** Allowlist for reaction notifications when mode is allowlist. */
   reactionAllowlist?: Array<string | number>;
+  /** Control reply threading when reply tags are present (off|first|all). */
+  replyToMode?: ReplyToMode;
   actions?: SlackActionConfig;
   slashCommand?: SlackSlashCommandConfig;
   dm?: SlackDmConfig;

src/config/zod-schema.ts

@@ -1017,6 +1017,7 @@ export const ClawdbotSchema = z.object({
         .enum(["off", "own", "all", "allowlist"])
         .optional(),
       reactionAllowlist: z.array(z.union([z.string(), z.number()])).optional(),
+      replyToMode: ReplyToModeSchema.optional(),
       actions: z
         .object({
           reactions: z.boolean().optional(),