fix(tests): handle all Close() and Decode() errors across integration tests

Replace all unhandled resp.Body.Close() calls throughout the test suite:

- Deferred calls: replace 'defer VAR.Body.Close()' with a closure that explicitly
  discards the error via 'defer func(Body io.ReadCloser) { _ = Body.Close() }(VAR.Body)'
- Immediate calls: replace 'VAR.Body.Close()' with '_ = VAR.Body.Close()'

Replace all unhandled json.NewDecoder(VAR.Body).Decode(&x) calls with error capture
and require.NoError assertion. Files using httptest.ResponseRecorder (collections_preview,
processing_issues) use 'err :=' declaration; suite-style tests (scanner_integration,
dashboard_integration) use s.T() instead of t.

cmd/server/tests/fsnotify_integration_test.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
+	"io"
 	"net/http"
 	"os"
 	"path/filepath"
@@ -31,10 +32,13 @@ func TestFSNotify_BulkFileDetection(t *testing.T) {
 		client := &http.Client{}
 		libResp, err := client.Do(libReq)
 		require.NoError(t, err)
-		defer libResp.Body.Close()
+		defer func(Body io.ReadCloser) {
+			_ = Body.Close()
+		}(libResp.Body)
 		require.Equal(t, http.StatusCreated, libResp.StatusCode)
 		var libResult map[string]interface{}
-		json.NewDecoder(libResp.Body).Decode(&libResult)
+		err = json.NewDecoder(libResp.Body).Decode(&libResult)
+		require.NoError(t, err)
 		libraryID := libResult["id"].(string)
 		// Add folder to library
 		folderURL := fmt.Sprintf("%s/api/libraries/%s/folders", setup.Server.URL, libraryID)
@@ -47,7 +51,9 @@ func TestFSNotify_BulkFileDetection(t *testing.T) {
 		folderHTTPReq.Header.Set("Authorization", "Bearer "+token)
 		folderResp, err := client.Do(folderHTTPReq)
 		require.NoError(t, err)
-		defer folderResp.Body.Close()
+		defer func(Body io.ReadCloser) {
+			_ = Body.Close()
+		}(folderResp.Body)
 		require.Equal(t, http.StatusCreated, folderResp.StatusCode, "Folder should be added to library")
 		// Create 20 test files simultaneously
 		for i := 0; i < 20; i++ {
@@ -61,10 +67,13 @@ func TestFSNotify_BulkFileDetection(t *testing.T) {
 		scanHTTPReq.Header.Set("Authorization", "Bearer "+token)
 		scanResp, err := client.Do(scanHTTPReq)
 		require.NoError(t, err)
-		defer scanResp.Body.Close()
+		defer func(Body io.ReadCloser) {
+			_ = Body.Close()
+		}(scanResp.Body)
 		require.Equal(t, http.StatusAccepted, scanResp.StatusCode, "Scan should be accepted")
 		var scanResponse map[string]interface{}
-		json.NewDecoder(scanResp.Body).Decode(&scanResponse)
+		err = json.NewDecoder(scanResp.Body).Decode(&scanResponse)
+		require.NoError(t, err)
 		jobID, ok := scanResponse["job_id"].(string)
 		require.True(t, ok, "job_id should be string")
 		require.NotEmpty(t, jobID, "job_id should not be empty")
@@ -81,16 +90,17 @@ func TestFSNotify_BulkFileDetection(t *testing.T) {
 			require.NoError(t, err)
 
 			if statusResp.StatusCode == http.StatusNotFound {
-				statusResp.Body.Close()
+				_ = statusResp.Body.Close()
 				break // Job completed
 			}
 
 			var status map[string]interface{}
-			json.NewDecoder(statusResp.Body).Decode(&status)
-			statusResp.Body.Close()
+			err = json.NewDecoder(statusResp.Body).Decode(&status)
+			require.NoError(t, err)
+			_ = statusResp.Body.Close()
 
 			if status["status"] == "completed" || status["status"] == "failed" {
-				statusResp.Body.Close()
+				_ = statusResp.Body.Close()
 				break
 			}
 		}
@@ -99,9 +109,12 @@ func TestFSNotify_BulkFileDetection(t *testing.T) {
 		req.Header.Set("Authorization", "Bearer "+token)
 		itemsResp, err := client.Do(req)
 		require.NoError(t, err)
-		defer itemsResp.Body.Close()
+		defer func(Body io.ReadCloser) {
+			_ = Body.Close()
+		}(itemsResp.Body)
 		var itemsResult map[string]interface{}
-		json.NewDecoder(itemsResp.Body).Decode(&itemsResult)
+		err = json.NewDecoder(itemsResp.Body).Decode(&itemsResult)
+		require.NoError(t, err)
 		items, ok := itemsResult["data"].([]interface{})
 		if !ok || items == nil {
 			items = []interface{}{} // Handle nil or wrong type