feat: add prune subcommand, drop archived/stale entries (#1441)

* feat: add prune subcommand, drop archived/stale entries, add container-explorer

Add a new `awesome-docker prune` subcommand that removes README entries
whose repository health status matches a configurable set (default:
archived,stale). URLs are read from the local health cache, or from a
markdown report file via --from-report when the cache is outdated.

Apply it against the issue #1439 health report to remove 5 entries
that survived the recent reorg: stitchocker, docker-consul,
blockbridge-docker-volume, docker-explorer, dockdash.

Add google/container-explorer in the Security section as the actively
maintained successor to the now-archived google/docker-explorer.

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

* golangci-lint config

* fix: address golangci-lint findings

Fixes errcheck on bufio.Writer.WriteString, gocritic rangeValCopy via
indexed loops with pointer locals, gosec G703 on user-supplied CLI
output path, noctx by switching to exec.CommandContext with a timeout
in the TUI url opener, prealloc in the scorer test, plus fieldalignment
struct reorders and golines line breaks from --fix.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude <noreply@anthropic.com>

internal/scorer/scorer.go

@@ -23,15 +23,15 @@ const (
 
 // ScoredEntry is a repo with its computed health status.
 type ScoredEntry struct {
+	LastPush    time.Time
 	URL         string
 	Name        string
 	Status      Status
+	Category    string
+	Description string
 	Stars       int
 	Forks       int
 	HasLicense  bool
-	LastPush    time.Time
-	Category    string
-	Description string
 }
 
 // ReportSummary contains grouped status counts.
@@ -46,10 +46,10 @@ type ReportSummary struct {
 // ReportData is the full machine-readable report model.
 type ReportData struct {
 	GeneratedAt time.Time                `json:"generated_at"`
-	Total       int                      `json:"total"`
-	Summary     ReportSummary            `json:"summary"`
-	Entries     []ScoredEntry            `json:"entries"`
 	ByStatus    map[Status][]ScoredEntry `json:"by_status"`
+	Entries     []ScoredEntry            `json:"entries"`
+	Summary     ReportSummary            `json:"summary"`
+	Total       int                      `json:"total"`
 }
 
 // Score computes the health status of a GitHub repo.
@@ -94,7 +94,8 @@ func ScoreAll(infos []checker.RepoInfo) []ScoredEntry {
 func ToCacheEntries(scored []ScoredEntry) []cache.HealthEntry {
 	entries := make([]cache.HealthEntry, len(scored))
 	now := time.Now().UTC()
-	for i, s := range scored {
+	for i := range scored {
+		s := &scored[i]
 		entries[i] = cache.HealthEntry{
 			URL:         s.URL,
 			Name:        s.Name,
@@ -135,7 +136,8 @@ func GenerateReport(scored []ScoredEntry) string {
 			return
 		}
 		fmt.Fprintf(&b, "## %s\n\n", title)
-		for _, e := range entries {
+		for i := range entries {
+			e := &entries[i]
 			fmt.Fprintf(&b, "- [%s](%s) - Stars: %d - Last push: %s\n",
 				e.Name, e.URL, e.Stars, e.LastPush.Format("2006-01-02"))
 		}
@@ -152,8 +154,9 @@ func GenerateReport(scored []ScoredEntry) string {
 // BuildReportData returns full report data for machine-readable and markdown rendering.
 func BuildReportData(scored []ScoredEntry) ReportData {
 	groups := map[Status][]ScoredEntry{}
-	for _, s := range scored {
-		groups[s.Status] = append(groups[s.Status], s)
+	for i := range scored {
+		s := &scored[i]
+		groups[s.Status] = append(groups[s.Status], *s)
 	}
 
 	return ReportData{

internal/scorer/scorer_test.go

@@ -70,7 +70,13 @@ func TestGenerateReport(t *testing.T) {
 	results := []ScoredEntry{
 		{URL: "https://github.com/a/a", Name: "a/a", Status: StatusHealthy, Stars: 100, LastPush: time.Now()},
 		{URL: "https://github.com/b/b", Name: "b/b", Status: StatusArchived, Stars: 50, LastPush: time.Now()},
-		{URL: "https://github.com/c/c", Name: "c/c", Status: StatusStale, Stars: 10, LastPush: time.Now().AddDate(-3, 0, 0)},
+		{
+			URL:      "https://github.com/c/c",
+			Name:     "c/c",
+			Status:   StatusStale,
+			Stars:    10,
+			LastPush: time.Now().AddDate(-3, 0, 0),
+		},
 	}
 	report := GenerateReport(results)
 	if !strings.Contains(report, "Healthy: 1") {
@@ -85,8 +91,9 @@ func TestGenerateReport(t *testing.T) {
 }
 
 func TestGenerateReportShowsAllEntries(t *testing.T) {
-	var results []ScoredEntry
-	for i := 0; i < 55; i++ {
+	const entryCount = 55
+	results := make([]ScoredEntry, 0, entryCount)
+	for i := range entryCount {
 		results = append(results, ScoredEntry{
 			URL:      fmt.Sprintf("https://github.com/stale/%d", i),
 			Name:     fmt.Sprintf("stale/%d", i),
@@ -100,7 +107,7 @@ func TestGenerateReportShowsAllEntries(t *testing.T) {
 	if strings.Contains(report, "... and") {
 		t.Fatal("report should not be truncated")
 	}
-	if !strings.Contains(report, "stale/54") {
+	if !strings.Contains(report, fmt.Sprintf("stale/%d", entryCount-1)) {
 		t.Fatal("report should contain all entries")
 	}
 }