feat(data-warehouse): wire Intercom and HubSpot into the self-driving inbox

Add Intercom and HubSpot as inbox source toggles. Both are OAuth sources,
but that needs no bespoke UI: the generic DynamicSourceSetup renders their
connect form's oauth field, and the generic integration flow starter
(separate PR) launches the OAuth flow by kind. So this is the same
one-registry-entry change as any credential source — two entries in
EXTERNAL_INBOX_SOURCES plus the SourceProduct/analytics unions and icons.

Author: Gilbert09

packages/shared/src/inbox-types.ts

@@ -198,6 +198,24 @@ export const EXTERNAL_INBOX_SOURCES = [
     recordKind: "ticket",
     setup: "dynamic",
   },
+  {
+    product: "hubspot",
+    label: "HubSpot",
+    description: TICKET,
+    dwSourceType: "Hubspot",
+    requiredTables: ["tickets"],
+    recordKind: "ticket",
+    setup: "dynamic",
+  },
+  {
+    product: "intercom",
+    label: "Intercom",
+    description: CONVERSATION,
+    dwSourceType: "Intercom",
+    requiredTables: ["conversations"],
+    recordKind: "ticket",
+    setup: "dynamic",
+  },
   {
     product: "kustomer",
     label: "Kustomer",

packages/ui/src/features/inbox/components/utils/source-product-icons.tsx

@@ -176,4 +176,6 @@ export const SOURCE_PRODUCT_META: Partial<
     color: "var(--amber-9)",
     label: "Judge.me",
   },
+  intercom: { Icon: ChatsIcon, color: "var(--blue-9)", label: "Intercom" },
+  hubspot: { Icon: LifebuoyIcon, color: "var(--orange-9)", label: "HubSpot" },
 };