feat(update): detect CivitAI paidAccess versions and add hide paid updates (#1060)

CivitAI's PaidAccess cutover deprecated the availability=EarlyAccess and
earlyAccessEndsAt signals; gated versions now report availability=Public
with a paidAccess DTO that LoRA Manager previously ignored, so "Hide
Early Access Updates" missed paid/early-access models and downloads
failed with 401.

Parse and persist paidAccess from model-level, bulk, and by-hash
responses; treat timed paid gates as early access and permanent paid
versions as a distinct is_paid state; add a hide_paid_updates setting
with a "Paid" badge in the versions tab; warn before downloading gated
versions. Includes SQLite migration, i18n for all locales, and
backend/frontend tests.

static/js/components/shared/ModelVersionsTab.js

@@ -182,6 +182,10 @@ function isEarlyAccessActive(version) {
     }
 }
 
+function isPaidPermanent(version) {
+    return version && version.isPaid === true;
+}
+
 function isDownloadAllowed(version) {
     if (!version.usageControl) {
         return true;
@@ -342,6 +346,7 @@ function resolveUpdateAvailability(record, baseModel, currentVersionId) {
     const strategy = state?.global?.settings?.version_grouping;
     const sameBaseMode = strategy === DISPLAY_FILTER_MODES.SAME_BASE;
     const hideEarlyAccess = state?.global?.settings?.hide_early_access_updates;
+    const hidePaid = state?.global?.settings?.hide_paid_updates;
 
     if (!sameBaseMode) {
         return Boolean(record?.hasUpdate);
@@ -388,6 +393,9 @@ function resolveUpdateAvailability(record, baseModel, currentVersionId) {
         if (hideEarlyAccess && isEarlyAccessActive(version)) {
             return false;
         }
+        if (hidePaid && isPaidPermanent(version)) {
+            return false;
+        }
         if (!isDownloadAllowed(version)) {
             return false;
         }
@@ -469,6 +477,7 @@ function renderRow(version, options) {
     const downloadedBadgeLabel = translate('modals.model.versions.badges.downloaded', {}, 'Downloaded');
     const newerBadgeLabel = translate('modals.model.versions.badges.newer', {}, 'Newer Version');
     const earlyAccessBadgeLabel = translate('modals.model.versions.badges.earlyAccess', {}, 'Early Access');
+    const paidBadgeLabel = translate('modals.model.versions.badges.paid', {}, 'Paid');
     const ignoredBadgeLabel = translate('modals.model.versions.badges.ignored', {}, 'Ignored');
     const versionName = version.name || translate('modals.model.versions.labels.unnamed', {}, 'Untitled Version');
 
@@ -522,6 +531,16 @@ function renderRow(version, options) {
         }));
     }
 
+    if (isPaidPermanent(version)) {
+        badges.push(buildBadge(paidBadgeLabel, 'paid', {
+            title: translate(
+                'modals.model.versions.badges.paidTooltip',
+                {},
+                'This version requires payment to download'
+            ),
+        }));
+    }
+
     if (!isDownloadAllowed(version)) {
         const onSiteOnlyBadgeLabel = translate('modals.model.versions.badges.onSiteOnly', {}, 'On-Site Only');
         badges.push(buildBadge(onSiteOnlyBadgeLabel, 'info', {
@@ -564,6 +583,12 @@ function renderRow(version, options) {
                 {},
                 'This version is only available for on-site generation on Civitai'
             );
+        } else if (isPaidPermanent(version)) {
+            downloadTitle = translate(
+                'modals.model.versions.actions.downloadPaidTooltip',
+                {},
+                'Download this paid version from Civitai'
+            );
         } else if (isEarlyAccess) {
             downloadTitle = translate(
                 'modals.model.versions.actions.downloadEarlyAccessTooltip',