feat(server): refactor mail queue (#15204)

packages/frontend/admin/src/config.json

@@ -50,6 +50,10 @@
     "queues.backendRuntime": {
       "type": "Object",
       "desc": "The config for backend runtime job queue"
+    },
+    "queues.inviteAbuse": {
+      "type": "Object",
+      "desc": "The config for invite abuse disposition job queue"
     }
   },
   "throttle": {
@@ -87,6 +91,18 @@
       "type": "Number",
       "desc": "Minimum account age in seconds before new accounts can invite members or create share links."
     },
+    "trustedCloudflareHeaders": {
+      "type": "Boolean",
+      "desc": "Whether request abuse source facts should trust Cloudflare headers from the origin edge."
+    },
+    "inviteQuotaShadowMode": {
+      "type": "Boolean",
+      "desc": "Whether workspace invite quota should record would-block decisions without rejecting requests or executing abuse actions."
+    },
+    "inviteQuotaFailOpenOnRuntimeError": {
+      "type": "Boolean",
+      "desc": "Whether workspace invite quota should fail open when native runtime admission is unavailable. Keep disabled for production."
+    },
     "passwordRequirements": {
       "type": "Object",
       "desc": "The password strength requirements when set new password."
@@ -140,6 +156,18 @@
       "type": "Array",
       "desc": "The emails from these domains are always sent using the fallback SMTP server."
     },
+    "deliveryWorker.batchSize": {
+      "type": "Number",
+      "desc": "Number of mail delivery rows claimed by each worker tick."
+    },
+    "deliveryWorker.leaseMs": {
+      "type": "Number",
+      "desc": "Mail delivery worker lease duration in milliseconds."
+    },
+    "deliveryWorker.retentionDays": {
+      "type": "Number",
+      "desc": "Days to retain anonymized terminal mail delivery ledger rows."
+    },
     "fallbackSMTP.name": {
       "type": "String",
       "desc": "Hostname used for fallback SMTP HELO/EHLO (e.g. mail.example.com). Leave empty to use the system hostname."