feat: add automation reactions event-trigger layer

src/config/schema.ts

@@ -257,6 +257,25 @@ const mcpSchema = z.object({
 
 const modelTierEnum = z.enum(['fast', 'default', 'complex', 'local']);
 
+const reactionFilterSchema = z.object({
+  /** Case-insensitive substring match against inbound message text. */
+  contains: z.string().optional(),
+  /** Case-insensitive regex match against inbound message text. */
+  regex: z.string().optional(),
+  /** Dot-path metadata constraints (exact string comparison). */
+  metadata: z.record(z.string(), z.string()).optional(),
+}).optional();
+
+const automationReactionSchema = z.object({
+  name: z.string().min(1, 'Reaction name is required'),
+  enabled: z.boolean().default(true),
+  /** Source channels/events this rule applies to (e.g. gmail, webhook). */
+  on: z.array(z.string().min(1)).default([]),
+  filter: reactionFilterSchema,
+  /** Prompt template to run when matched. Supports {{text}}, {{channel}}, {{sender_id}}, {{metadata.*}}. */
+  run: z.string().min(1, 'Reaction run template is required'),
+});
+
 const cronJobSchema = z.object({
   name: z.string().min(1, 'Cron job name is required'),
   schedule: z.string().min(1, 'Cron schedule is required'),
@@ -422,6 +441,7 @@ const automationDeliveryModeSchema = z.enum(['shared_session', 'isolated_job', '
 const automationSchema = z.object({
   /** Session strategy for automation-triggered runs (cron/webhooks/gmail). */
   delivery_mode: automationDeliveryModeSchema.default('shared_session'),
+  reactions: z.array(automationReactionSchema).default([]),
   cron: z.array(cronJobSchema).default([]),
   webhooks: z.array(webhookSchema).default([]),
   gmail: gmailSchema,
@@ -999,6 +1019,7 @@ export type DailyBriefingConfig = z.infer<typeof dailyBriefingSchema>;
 export type MinioSyncTaskConfig = z.infer<typeof minioSyncTaskSchema>;
 export type MinioSyncAutomationConfig = z.infer<typeof minioSyncAutomationSchema>;
 export type AutomationDeliveryMode = z.infer<typeof automationDeliveryModeSchema>;
+export type AutomationReactionConfig = z.infer<typeof automationReactionSchema>;
 export type PairingCodeConfig = z.infer<typeof pairingSchema>;
 export type LogLevel = z.infer<typeof logLevelSchema>;
 export type AuditConfig = z.infer<typeof auditSchema>;