Sécuriser et documenter les liens morts

Rend les liens supprimés non cliquables, améliore le rapport des liens morts et accélère la génération du site.

Closes #2
Closes #3
Closes #4

themes/2026/layouts/_partials/external-link-status.html

@@ -1,16 +1,16 @@
 {{- $url := "" -}}
-{{- $report := partial "external-links-report.html" (dict) -}}
+{{- $report := partialCached "external-links-report.html" (dict) "default" -}}
 {{- if reflect.IsMap . -}}
   {{- with index . "URL" -}}
     {{- $url = . -}}
   {{- end -}}
   {{- with index . "Report" -}}
-    {{- $report = partial "external-links-report.html" (dict "Report" .) -}}
+    {{- $report = . -}}
   {{- end -}}
 {{- end -}}
 
 {{- $entries := default (dict) (index $report "entries") -}}
-{{- $deadLinks := default (slice) (index $report "links") -}}
+{{- $deadLinksMap := default (dict) (index $report "linksMap") -}}
 
 {{- $host := "" -}}
 {{- with $url -}}
@@ -39,11 +39,8 @@
 
 {{- $deadInfo := dict -}}
 {{- range $lookupURLs -}}
-  {{- if eq (len $deadInfo) 0 -}}
-    {{- $matches := where $deadLinks "url" . -}}
-    {{- if gt (len $matches) 0 -}}
-      {{- $deadInfo = index $matches 0 -}}
-    {{- end -}}
+  {{- if and (eq (len $deadInfo) 0) (isset $deadLinksMap .) -}}
+    {{- $deadInfo = index $deadLinksMap . -}}
   {{- end -}}
 {{- end -}}
 
@@ -54,6 +51,16 @@
 {{- $statusTone := "unknown" -}}
 {{- $statusLabel := "État inconnu" -}}
 {{- $statusTitle := "" -}}
+{{- $statusManual := false -}}
+
+{{- with index $entry "manualMarked" -}}
+  {{- $statusManual = . -}}
+{{- end -}}
+{{- if and (not $statusManual) (gt (len $deadInfo) 0) -}}
+  {{- with index $deadInfo "manualMarked" -}}
+    {{- $statusManual = . -}}
+  {{- end -}}
+{{- end -}}
 
 {{- if gt (len $entry) 0 -}}
   {{- with index $entry "status" -}}
@@ -95,7 +102,11 @@
   {{- end -}}
 {{- end -}}
 
-{{- if gt $statusCode 0 -}}
+{{- if $statusManual -}}
+  {{- $statusTone = "dead" -}}
+  {{- $statusLabel = "Supprimé" -}}
+  {{- $statusTitle = "Lien marqué comme supprimé dans data/deletions.yaml" -}}
+{{- else if gt $statusCode 0 -}}
   {{- if lt $statusCode 400 -}}
     {{- $statusTone = "ok" -}}
     {{- $statusLabel = printf "OK %d" $statusCode -}}