fix(connection): prevent host with 'cfg' from force-switching endpoint type

apps/frontend/src/components/ui/connection-form.test.tsx

@@ -53,4 +53,32 @@ describe("ConnectionForm", () => {
       connectionId: buildConnectionId("localhost", "6380", 0),
     })
   })
+
+  it("does not force-switch endpoint type to Discovery when host contains 'cfg'", async () => {
+    renderForm()
+
+    fireEvent.change(screen.getByLabelText("Host"), { target: { value: "clustercfg.example.com" } })
+    fireEvent.change(screen.getByLabelText("Database"), { target: { value: "7" } })
+    expect(screen.getByText("Hint: If this is a cluster configuration endpoint, switch Endpoint Type to Discovery.")).toBeInTheDocument()
+    expect(screen.getByLabelText("Node")).toBeChecked()
+
+    fireEvent.change(screen.getByLabelText("Host"), { target: { value: "cluster.example.com" } })
+    expect(screen.queryByText("Hint: If this is a cluster configuration endpoint, switch Endpoint Type to Discovery.")).not.toBeInTheDocument()
+    expect(screen.getByLabelText("Node")).toBeChecked()
+    expect(screen.getByLabelText("Database")).toHaveValue(7)
+
+    fireEvent.change(screen.getByLabelText("Host"), { target: { value: "clustercfg.example.com" } })
+    fireEvent.click(screen.getByRole("button", { name: "Connect" }))
+
+    await screen.findByRole("button", { name: /Connect/ })
+
+    const pending = dispatched.find((a) => a.type.endsWith("connectPending"))
+    expect(pending?.payload).toMatchObject({
+      connectionId: buildConnectionId("clustercfg.example.com", "6379", 7),
+      connectionDetails: expect.objectContaining({
+        endpointType: "node",
+        db: 7,
+      }),
+    })
+  })
 })

apps/frontend/src/components/ui/connection-modal.tsx

@@ -134,14 +134,18 @@ export function ConnectionModal({
                           onConnectionDetailsChange({
                             ...connectionDetails,
                             host,
-                            endpointType: host.includes("cfg") ? "cluster-endpoint" : connectionDetails.endpointType,
                           })
                         }}
                         placeholder="localhost"
                         required
                         type="text"
                         value={connectionDetails.host}
                       />
+                      {connectionDetails.endpointType === "node" && connectionDetails.host.includes("cfg") && (
+                        <Typography className="text-muted-foreground mt-1" variant="bodySm">
+                          Hint: If this is a cluster configuration endpoint, switch Endpoint Type to Discovery.
+                        </Typography>
+                      )}
                     </div>
                     <div>
                       <Label className="block mb-1" htmlFor="port">Port</Label>