feat(queue): add per-channel debounce overrides

src/config/types.messages.ts

@@ -13,20 +13,13 @@ export type QueueConfig = {
   mode?: QueueMode;
   byChannel?: QueueModeByProvider;
   debounceMs?: number;
+  /** Per-channel debounce overrides (ms). */
+  debounceMsByChannel?: InboundDebounceByProvider;
   cap?: number;
   drop?: QueueDropPolicy;
 };
 
-export type InboundDebounceByProvider = {
-  whatsapp?: number;
-  telegram?: number;
-  discord?: number;
-  slack?: number;
-  signal?: number;
-  imessage?: number;
-  msteams?: number;
-  webchat?: number;
-};
+export type InboundDebounceByProvider = Record<string, number>;
 
 export type InboundDebounceConfig = {
   debounceMs?: number;

src/config/zod-schema.core.ts

@@ -217,17 +217,7 @@ export const QueueModeBySurfaceSchema = z
   .optional();
 
 export const DebounceMsBySurfaceSchema = z
-  .object({
-    whatsapp: z.number().int().nonnegative().optional(),
-    telegram: z.number().int().nonnegative().optional(),
-    discord: z.number().int().nonnegative().optional(),
-    slack: z.number().int().nonnegative().optional(),
-    signal: z.number().int().nonnegative().optional(),
-    imessage: z.number().int().nonnegative().optional(),
-    msteams: z.number().int().nonnegative().optional(),
-    webchat: z.number().int().nonnegative().optional(),
-  })
-  .strict()
+  .record(z.string(), z.number().int().nonnegative())
   .optional();
 
 export const QueueSchema = z
@@ -235,6 +225,7 @@ export const QueueSchema = z
     mode: QueueModeSchema.optional(),
     byChannel: QueueModeBySurfaceSchema,
     debounceMs: z.number().int().nonnegative().optional(),
+    debounceMsByChannel: DebounceMsBySurfaceSchema,
     cap: z.number().int().positive().optional(),
     drop: QueueDropSchema.optional(),
   })