chore: fix 3 pre-existing golangci-lint failures on main

internal/acpproc/acp_process_memory.go

@@ -44,13 +44,6 @@ func processTreeRSSDetailed(pid int) (parent uint64, descendants uint64, descend
 	return parent, descendants, descendantCount, nil
 }
 
-// descendantsRSS recursively sums the RSS of all descendants of p. Per-process
-// errors are skipped so a child exiting mid-walk does not fail the whole sum.
-func descendantsRSS(p *process.Process) uint64 {
-	total, _ := descendantsRSSDetailed(p)
-	return total
-}
-
 // descendantsRSSDetailed recursively sums the RSS of all descendants of p and
 // counts them. Per-process errors are skipped so a child exiting mid-walk does
 // not fail the whole sum.

internal/web/handlers/dashboard.go

@@ -262,12 +262,6 @@ func itemStatus(item map[string]any) string {
 	return s
 }
 
-// itemType returns the "issue_type" field of an issue map as a string.
-func itemType(item map[string]any) string {
-	s, _ := item["issue_type"].(string)
-	return s
-}
-
 // itemUpdatedAt returns the "updated_at" field of an issue map as a string.
 // bd emits RFC 3339 timestamps so lexicographic comparison matches chronology.
 func itemUpdatedAt(item map[string]any) string {

internal/web/loop_runner_test.go

@@ -4016,7 +4016,9 @@ func TestLoopRunner_WorkspaceKey(t *testing.T) {
 		t.Error("keys should differ when WorkingDir differs")
 	}
 	// Same WorkingDir + ACPServer → same key.
-	if workspaceKey("/w", "a") != workspaceKey("/w", "a") {
+	k1 := workspaceKey("/w", "a")
+	k2 := workspaceKey("/w", "a")
+	if k1 != k2 {
 		t.Error("keys should match for the same pair")
 	}
 	// NUL separator is present.

web/static/hooks/useWebSocket.js

@@ -4315,7 +4315,6 @@ export function useWebSocket({
       }
       staggeredBackgroundTimersRef.current = {};
     };
-    // eslint-disable-next-line preact/hooks/exhaustive-deps
   }, []);
 
   // forceReconnectActiveSession lives in useWSConnection (C1) — mitto-90f.6.2.