fix: resolve CI failures — errcheck lint and TS noUncheckedIndexedAccess errors

- ws_integration_test.go:42: wrap resp.Body.Close() to handle errcheck
- dispatcher.ts:183: add non-null assertion on sorted[0] array access
- keybinds-tab.test.ts: add non-null assertions on NodeList index accesses
- logs-tab.test.ts: add non-null assertions on querySelectorAll index accesses

Co-authored-by: J3vb <J3vb@users.noreply.github.com>

Client/tauri-client/src/lib/dispatcher.ts

@@ -180,7 +180,7 @@ export function wireDispatcher(ws: WsClient): DispatcherCleanup {
         const sorted = [...remaining.values()]
           .filter((ch) => ch.type === "text")
           .sort((a, b) => a.position - b.position);
-        const firstTextId = sorted.length > 0 ? sorted[0].id : null;
+        const firstTextId = sorted.length > 0 ? sorted[0]!.id : null;
         setActiveChannel(firstTextId);
         log.info("Active channel deleted, redirected", { deletedId: payload.id });
       }

Client/tauri-client/tests/unit/keybinds-tab.test.ts

@@ -19,21 +19,21 @@ describe("KeybindsTab", () => {
     const el = buildKeybindsTab();
     const rows = el.querySelectorAll(".keybind-row");
     expect(rows.length).toBe(2);
-    const pttLabel = rows[0].querySelector(".setting-label");
+    const pttLabel = rows[0]!.querySelector(".setting-label");
     expect(pttLabel!.textContent).toBe("Push to Talk");
   });
 
   it("renders Quick Switcher keybind row with Ctrl + K", () => {
     const el = buildKeybindsTab();
     const rows = el.querySelectorAll(".keybind-row");
-    const kbd = rows[1].querySelector(".kbd");
+    const kbd = rows[1]!.querySelector(".kbd");
     expect(kbd!.textContent).toBe("Ctrl + K");
   });
 
   it("shows fallback for PTT when not configured", () => {
     const el = buildKeybindsTab();
     const rows = el.querySelectorAll(".keybind-row");
-    const kbd = rows[0].querySelector(".kbd");
+    const kbd = rows[0]!.querySelector(".kbd");
     expect(kbd!.textContent).toBe("Not set");
   });
 });

Client/tauri-client/tests/unit/logs-tab.test.ts

@@ -146,7 +146,7 @@ describe("LogsTab", () => {
     ]);
     const handle = createLogsTab(() => "Logs" as TabName, controller.signal);
     const el = handle.build();
-    const filterSelect = el.querySelectorAll("select")[0];
+    const filterSelect = el.querySelectorAll("select")[0]!;
 
     // Change to "warn" filter
     filterSelect.value = "warn";
@@ -169,7 +169,7 @@ describe("LogsTab", () => {
   it("level selector calls setLogLevel", () => {
     const handle = createLogsTab(() => "Logs" as TabName, controller.signal);
     const el = handle.build();
-    const levelSelect = el.querySelectorAll("select")[1];
+    const levelSelect = el.querySelectorAll("select")[1]!;
     levelSelect.value = "error";
     levelSelect.dispatchEvent(new Event("change"));
     expect(mockSetLogLevel).toHaveBeenCalledWith("error");

Server/ws/ws_integration_test.go

@@ -39,7 +39,7 @@ func TestServeWS_InvalidUpgrade_ReturnsError(t *testing.T) {
 	if err != nil {
 		t.Fatalf("http.Get: %v", err)
 	}
-	defer resp.Body.Close()
+	defer func() { _ = resp.Body.Close() }()
 
 	// nhooyr.io/websocket returns 400 or 426 when upgrade is absent.
 	if resp.StatusCode == 200 {