feat(studio): show a source module's data terms before the install button

The store detail sheet now carries a data-source block for source.*
modules: publisher, upstream url, the terms in plain words, and any
attribution the operator has to carry with the output. It sits above
maintainers and above the install button, because it is a decision
input rather than a footnote.

The values are selectable: compliance notes get written by copying,
not retyping. A note names whose terms these are, so nobody reads them
as the module's own licence. Four guards, including that an empty
attribution renders no empty row.

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

lib/l10n/app_de.arb

@@ -1670,6 +1670,10 @@
   "installConfirmTrustTitle": "Vertrauen & Sicherheit",
   "installConfirmTrustBody": "Das Modul läuft in einer Sandbox: Es darf nur auf die Netzwerk-Endpunkte, Dateien und Umgebungsvariablen zugreifen, die es selbst deklariert — der Hub setzt diese Liste durch. Die vollständige Berechtigungsliste sehen Sie nach der Installation in den Modul-Details.",
   "storeSectionMaintainers": "Maintainer",
+  "storeSectionDataSource": "Datenquelle",
+  "storeDataSourceLicense": "Bedingungen",
+  "storeDataSourceAttribution": "Namensnennung erforderlich",
+  "storeDataSourceNote": "Diese Bedingungen gelten für das Material, das dieses Modul abruft, nicht für das Modul selbst. Es lädt in Ihrem Auftrag und liefert keine Kopie der Daten mit.",
   "storeMaintainersNone": "nicht angegeben",
   "installConfirmMaintainers": "Maintainer",
   "storePolicyUnverifiedNotice": "Die Signaturpflicht ist in der Hub-Richtlinie ausgeschaltet — Installationen werden nicht kryptografisch geprüft. Der Installations-Dialog zeigt den Status je Modul; für geprüfte Installationen security.require_signatures aktivieren.",

lib/l10n/app_en.arb

@@ -1711,6 +1711,10 @@
   "installConfirmTrustTitle": "Trust & security",
   "installConfirmTrustBody": "The module runs in a sandbox: it may only touch the network endpoints, files, and environment variables it declares itself — the hub enforces that list. The full permission list is visible in the module details after installation.",
   "storeSectionMaintainers": "Maintainers",
+  "storeSectionDataSource": "Data source",
+  "storeDataSourceLicense": "Terms",
+  "storeDataSourceAttribution": "Attribution required",
+  "storeDataSourceNote": "These terms cover the material this module fetches, not the module itself. It downloads on your behalf and ships no copy of the data.",
   "storeMaintainersNone": "not specified",
   "installConfirmMaintainers": "Maintainers",
   "storePolicyUnverifiedNotice": "Signature enforcement is switched off in the hub policy — installs are not cryptographically verified. The install dialog shows the per-module status; enable security.require_signatures for verified installs.",

lib/l10n/app_localizations.dart

@@ -5174,6 +5174,30 @@ abstract class AppLocalizations {
   /// **'Maintainers'**
   String get storeSectionMaintainers;
 
+  /// No description provided for @storeSectionDataSource.
+  ///
+  /// In en, this message translates to:
+  /// **'Data source'**
+  String get storeSectionDataSource;
+
+  /// No description provided for @storeDataSourceLicense.
+  ///
+  /// In en, this message translates to:
+  /// **'Terms'**
+  String get storeDataSourceLicense;
+
+  /// No description provided for @storeDataSourceAttribution.
+  ///
+  /// In en, this message translates to:
+  /// **'Attribution required'**
+  String get storeDataSourceAttribution;
+
+  /// No description provided for @storeDataSourceNote.
+  ///
+  /// In en, this message translates to:
+  /// **'These terms cover the material this module fetches, not the module itself. It downloads on your behalf and ships no copy of the data.'**
+  String get storeDataSourceNote;
+
   /// No description provided for @storeMaintainersNone.
   ///
   /// In en, this message translates to:

lib/l10n/app_localizations_de.dart

@@ -3056,6 +3056,19 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get storeSectionMaintainers => 'Maintainer';
 
+  @override
+  String get storeSectionDataSource => 'Datenquelle';
+
+  @override
+  String get storeDataSourceLicense => 'Bedingungen';
+
+  @override
+  String get storeDataSourceAttribution => 'Namensnennung erforderlich';
+
+  @override
+  String get storeDataSourceNote =>
+      'Diese Bedingungen gelten für das Material, das dieses Modul abruft, nicht für das Modul selbst. Es lädt in Ihrem Auftrag und liefert keine Kopie der Daten mit.';
+
   @override
   String get storeMaintainersNone => 'nicht angegeben';
 

lib/l10n/app_localizations_en.dart

@@ -3052,6 +3052,19 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get storeSectionMaintainers => 'Maintainers';
 
+  @override
+  String get storeSectionDataSource => 'Data source';
+
+  @override
+  String get storeDataSourceLicense => 'Terms';
+
+  @override
+  String get storeDataSourceAttribution => 'Attribution required';
+
+  @override
+  String get storeDataSourceNote =>
+      'These terms cover the material this module fetches, not the module itself. It downloads on your behalf and ships no copy of the data.';
+
   @override
   String get storeMaintainersNone => 'not specified';