fix: resolve lint and E2E test failures in tool quarantine PR

- Convert if/else chain to switch statement in handleInspectToolApprovals
  to fix staticcheck QF1003 lint error
- Disable tool-level quarantine in E2E test environment since existing
  tests don't test this feature (quarantine-specific tests have their
  own setup). Without this, new tools from mock servers were blocked as
  "pending" approval, causing 4 E2E test failures.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: claude

internal/server/e2e_test.go

@@ -77,6 +77,7 @@ func NewTestEnvironment(t *testing.T) *TestEnvironment {
 	ln.Close()
 
 	// Create proxy server with test config
+	quarantineDisabled := false
 	cfg := &config.Config{
 		DataDir:           dataDir,
 		Listen:            fmt.Sprintf(":%d", testPort),
@@ -88,6 +89,7 @@ func NewTestEnvironment(t *testing.T) *TestEnvironment {
 		AllowServerRemove: true,
 		EnablePrompts:     true,
 		DebugSearch:       true,
+		QuarantineEnabled: &quarantineDisabled, // Disable tool-level quarantine in E2E tests (tested separately)
 	}
 
 	env.proxyServer, err = NewServer(cfg, logger)
@@ -1873,7 +1875,7 @@ func TestE2E_Activity_ExcludeCallToolSuccess(t *testing.T) {
 		callRequest := mcp.CallToolRequest{}
 		callRequest.Params.Name = "call_tool_read"
 		callRequest.Params.Arguments = map[string]interface{}{
-			"name": "test-server-fixture:echo_tool",
+			"name":      "test-server-fixture:echo_tool",
 			"args_json": `{"message": "test-activity-filtering"}`,
 			"intent": map[string]interface{}{
 				"operation_type": "read",

internal/server/mcp.go

@@ -2246,12 +2246,13 @@ func (p *MCPProxyServer) handleInspectToolApprovals(request mcp.CallToolRequest)
 			"hash":        r.CurrentHash,
 			"description": r.CurrentDescription,
 		}
-		if r.Status == "changed" {
+		switch r.Status {
+		case "changed":
 			tool["previous_description"] = r.PreviousDescription
 			changedCount++
-		} else if r.Status == "pending" {
+		case "pending":
 			pendingCount++
-		} else {
+		default:
 			approvedCount++
 		}
 		toolList[i] = tool