Feature: extended filter rules — attachment field + multi-value conditions

Adds an "Attachment" condition field (is present / of type <ext>) backed by
the RFC 5703 Sieve mime extension, matching the filename in both
Content-Disposition and Content-Type headers so real-world senders that only
put the name in Content-Type (Microsoft SMTPSVC, etc.) are caught. Users type
extensions (pdf, doc) not MIME types.

Also makes each text condition accept comma-separated multiple values emitted
as a Sieve string list (OR within the condition), so "(domain1 OR domain2)
AND attachment pdf/xml" is expressible in one rule. value is now string |
string[] (single-value rules stay strings -> backward compatible). New filter
locale keys in all 17 locales.

locales/cs/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Akce",
       "add_action": "Přidat akci",
       "stop_processing": "Zastavit zpracování dalších pravidel",
+      "attachment_type_placeholder": "např. pdf, doc, jpg",
+      "value_placeholder_multi": "Hodnota (více oddělených čárkami)",
       "condition_fields": {
+        "attachment": "Příloha",
         "from": "Od",
         "to": "Komu",
         "cc": "Kopie",
@@ -1642,6 +1645,8 @@
         "body": "Tělo zprávy"
       },
       "comparators": {
+        "has_any": "je přítomna",
+        "has_type": "typu",
         "contains": "obsahuje",
         "not_contains": "neobsahuje",
         "is": "je přesně",

locales/da/common.json

@@ -1633,7 +1633,10 @@
       "actions": "Handlinger",
       "add_action": "Tilføj handling",
       "stop_processing": "Stop behandling af efterfølgende regler",
+      "attachment_type_placeholder": "f.eks. pdf, doc, jpg",
+      "value_placeholder_multi": "Værdi (flere adskilt med komma)",
       "condition_fields": {
+        "attachment": "Vedhæftet fil",
         "from": "Fra",
         "to": "Til",
         "cc": "Cc",
@@ -1643,6 +1646,8 @@
         "body": "Brødtekst"
       },
       "comparators": {
+        "has_any": "er til stede",
+        "has_type": "af typen",
         "contains": "indeholder",
         "not_contains": "indeholder ikke",
         "is": "er præcis",

locales/de/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Aktionen",
       "add_action": "Aktion hinzufügen",
       "stop_processing": "Verarbeitung nachfolgender Regeln stoppen",
+      "attachment_type_placeholder": "z.B. pdf, doc, jpg",
+      "value_placeholder_multi": "Wert (mehrere mit Komma trennen)",
       "condition_fields": {
+        "attachment": "Anhang",
         "from": "Von",
         "to": "An",
         "cc": "Cc",
@@ -1642,6 +1645,8 @@
         "body": "Nachrichtentext"
       },
       "comparators": {
+        "has_any": "vorhanden",
+        "has_type": "vom Typ",
         "contains": "enthält",
         "not_contains": "enthält nicht",
         "is": "ist genau",

locales/en/common.json

@@ -1633,7 +1633,10 @@
       "actions": "Actions",
       "add_action": "Add Action",
       "stop_processing": "Stop processing subsequent rules",
+      "attachment_type_placeholder": "e.g. pdf, doc, jpg",
+      "value_placeholder_multi": "Value (multiple separated by commas)",
       "condition_fields": {
+        "attachment": "Attachment",
         "from": "From",
         "to": "To",
         "cc": "Cc",
@@ -1643,6 +1646,8 @@
         "body": "Body"
       },
       "comparators": {
+        "has_any": "is present",
+        "has_type": "of type",
         "contains": "contains",
         "not_contains": "does not contain",
         "is": "is exactly",

locales/es/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Acciones",
       "add_action": "Agregar acción",
       "stop_processing": "Detener el procesamiento de reglas posteriores",
+      "attachment_type_placeholder": "p. ej. pdf, doc, jpg",
+      "value_placeholder_multi": "Valor (varios separados por comas)",
       "condition_fields": {
+        "attachment": "Adjunto",
         "from": "De",
         "to": "Para",
         "cc": "Cc",
@@ -1642,6 +1645,8 @@
         "body": "Cuerpo"
       },
       "comparators": {
+        "has_any": "está presente",
+        "has_type": "del tipo",
         "contains": "contiene",
         "not_contains": "no contiene",
         "is": "es exactamente",

locales/fr/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Actions",
       "add_action": "Ajouter une action",
       "stop_processing": "Arrêter le traitement des règles suivantes",
+      "attachment_type_placeholder": "p. ex. pdf, doc, jpg",
+      "value_placeholder_multi": "Valeur (plusieurs séparées par des virgules)",
       "condition_fields": {
+        "attachment": "Pièce jointe",
         "from": "De",
         "to": "À",
         "cc": "Cc",
@@ -1642,6 +1645,8 @@
         "body": "Corps"
       },
       "comparators": {
+        "has_any": "est présent",
+        "has_type": "de type",
         "contains": "contient",
         "not_contains": "ne contient pas",
         "is": "est exactement",

locales/it/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Azioni",
       "add_action": "Aggiungi azione",
       "stop_processing": "Interrompere l'elaborazione delle regole successive",
+      "attachment_type_placeholder": "es. pdf, doc, jpg",
+      "value_placeholder_multi": "Valore (più valori separati da virgole)",
       "condition_fields": {
+        "attachment": "Allegato",
         "from": "Da",
         "to": "A",
         "cc": "Cc",
@@ -1642,6 +1645,8 @@
         "body": "Corpo"
       },
       "comparators": {
+        "has_any": "è presente",
+        "has_type": "di tipo",
         "contains": "contiene",
         "not_contains": "non contiene",
         "is": "è esattamente",

locales/ja/common.json

@@ -1632,7 +1632,10 @@
       "actions": "アクション",
       "add_action": "アクションを追加",
       "stop_processing": "以降のルールの処理を停止",
+      "attachment_type_placeholder": "例: pdf, doc, jpg",
+      "value_placeholder_multi": "値（カンマで複数指定可）",
       "condition_fields": {
+        "attachment": "添付ファイル",
         "from": "差出人",
         "to": "宛先",
         "cc": "Cc",
@@ -1642,6 +1645,8 @@
         "body": "本文"
       },
       "comparators": {
+        "has_any": "あり",
+        "has_type": "タイプ",
         "contains": "を含む",
         "not_contains": "を含まない",
         "is": "と完全一致",

locales/ko/common.json

@@ -1632,7 +1632,10 @@
       "actions": "동작",
       "add_action": "동작 추가",
       "stop_processing": "이후 규칙 무시하기",
+      "attachment_type_placeholder": "예: pdf, doc, jpg",
+      "value_placeholder_multi": "값 (쉼표로 여러 개 구분)",
       "condition_fields": {
+        "attachment": "첨부 파일",
         "from": "보낸 사람",
         "to": "받는 사람",
         "cc": "참조",
@@ -1642,6 +1645,8 @@
         "body": "본문"
       },
       "comparators": {
+        "has_any": "있음",
+        "has_type": "유형",
         "contains": "포함함",
         "not_contains": "포함하지 않음",
         "is": "정확히 일치",

locales/lv/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Darbības",
       "add_action": "Pievienot darbību",
       "stop_processing": "Pārtraukt nākamo noteikumu apstrādi",
+      "attachment_type_placeholder": "piem. pdf, doc, jpg",
+      "value_placeholder_multi": "Vērtība (vairākas atdalītas ar komatu)",
       "condition_fields": {
+        "attachment": "Pielikums",
         "from": "No",
         "to": "Kam",
         "cc": "Kopija",
@@ -1642,6 +1645,8 @@
         "body": "Teksts"
       },
       "comparators": {
+        "has_any": "ir klāt",
+        "has_type": "tipa",
         "contains": "satur",
         "not_contains": "nesatur",
         "is": "precīzi sakrīt",

locales/nl/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Acties",
       "add_action": "Actie toevoegen",
       "stop_processing": "Verwerking van volgende regels stoppen",
+      "attachment_type_placeholder": "bijv. pdf, doc, jpg",
+      "value_placeholder_multi": "Waarde (meerdere met komma's gescheiden)",
       "condition_fields": {
+        "attachment": "Bijlage",
         "from": "Van",
         "to": "Aan",
         "cc": "Cc",
@@ -1642,6 +1645,8 @@
         "body": "Inhoud"
       },
       "comparators": {
+        "has_any": "aanwezig",
+        "has_type": "van type",
         "contains": "bevat",
         "not_contains": "bevat niet",
         "is": "is precies",

locales/pl/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Akcje",
       "add_action": "Dodaj akcję",
       "stop_processing": "Zatrzymaj przetwarzanie kolejnych reguł",
+      "attachment_type_placeholder": "np. pdf, doc, jpg",
+      "value_placeholder_multi": "Wartość (kilka oddzielonych przecinkami)",
       "condition_fields": {
+        "attachment": "Załącznik",
         "from": "Od",
         "to": "Do",
         "cc": "DW",
@@ -1642,6 +1645,8 @@
         "body": "Treść"
       },
       "comparators": {
+        "has_any": "jest obecny",
+        "has_type": "typu",
         "contains": "zawiera",
         "not_contains": "nie zawiera",
         "is": "jest dokładnie",

locales/pt/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Ações",
       "add_action": "Adicionar ação",
       "stop_processing": "Parar o processamento das regras seguintes",
+      "attachment_type_placeholder": "ex.: pdf, doc, jpg",
+      "value_placeholder_multi": "Valor (vários separados por vírgulas)",
       "condition_fields": {
+        "attachment": "Anexo",
         "from": "De",
         "to": "Para",
         "cc": "Cc",
@@ -1642,6 +1645,8 @@
         "body": "Corpo"
       },
       "comparators": {
+        "has_any": "está presente",
+        "has_type": "do tipo",
         "contains": "contém",
         "not_contains": "não contém",
         "is": "é exatamente",

locales/ru/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Действия",
       "add_action": "Добавить действие",
       "stop_processing": "Прекратить обработку последующих правил",
+      "attachment_type_placeholder": "напр. pdf, doc, jpg",
+      "value_placeholder_multi": "Значение (несколько через запятую)",
       "condition_fields": {
+        "attachment": "Вложение",
         "from": "От",
         "to": "Кому",
         "cc": "Копия",
@@ -1642,6 +1645,8 @@
         "body": "Тело"
       },
       "comparators": {
+        "has_any": "присутствует",
+        "has_type": "типа",
         "contains": "содержит",
         "not_contains": "не содержит",
         "is": "точно совпадает",

locales/tr/common.json

@@ -1632,7 +1632,10 @@
       "actions": "İşlemler",
       "add_action": "İşlem Ekle",
       "stop_processing": "Sonraki kuralları işlemeyi durdur",
+      "attachment_type_placeholder": "örn. pdf, doc, jpg",
+      "value_placeholder_multi": "Değer (birden fazla virgülle ayrılır)",
       "condition_fields": {
+        "attachment": "Ek",
         "from": "Kimden",
         "to": "Kime",
         "cc": "Bilgi",
@@ -1642,6 +1645,8 @@
         "body": "Gövde"
       },
       "comparators": {
+        "has_any": "mevcut",
+        "has_type": "türünde",
         "contains": "içerir",
         "not_contains": "içermez",
         "is": "tam olarak",

locales/uk/common.json

@@ -1632,7 +1632,10 @@
       "actions": "Дії",
       "add_action": "Додати дію",
       "stop_processing": "Зупинити обробку наступних правил",
+      "attachment_type_placeholder": "напр. pdf, doc, jpg",
+      "value_placeholder_multi": "Значення (декілька через кому)",
       "condition_fields": {
+        "attachment": "Вкладення",
         "from": "Від",
         "to": "до",
         "cc": "Cc",
@@ -1642,6 +1645,8 @@
         "body": "Тіло"
       },
       "comparators": {
+        "has_any": "присутнє",
+        "has_type": "типу",
         "contains": "містить",
         "not_contains": "не містить",
         "is": "точно",

locales/zh/common.json

@@ -1632,7 +1632,10 @@
       "actions": "操作",
       "add_action": "添加操作",
       "stop_processing": "停止处理后续规则",
+      "attachment_type_placeholder": "例如：pdf、doc、jpg",
+      "value_placeholder_multi": "值（多个用逗号分隔）",
       "condition_fields": {
+        "attachment": "附件",
         "from": "发件人",
         "to": "收件人",
         "cc": "抄送",
@@ -1642,6 +1645,8 @@
         "body": "正文"
       },
       "comparators": {
+        "has_any": "存在",
+        "has_type": "类型为",
         "contains": "包含",
         "not_contains": "不包含",
         "is": "等于",