fix: seed all plans/features in prod (upsert); fix admin toggle RTL knob

Plan + feature seeding was dev-gated and all-or-nothing, so production only had the Free plan (admin Plans page showed one). Now runs in every environment and upserts missing rows (adds Pro/Business/Enterprise on top of the existing Free). Also force LTR on the admin toggle switch so the knob doesn't render off-track under the RTL page.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/Meezi.Infrastructure/Data/PlatformDataSeeder.cs

@@ -33,6 +33,12 @@ public static class PlatformDataSeeder
         // from their city, so the public map lights up. Idempotent (fills nulls).
         await BackfillCafeLocationsAsync(db, logger);
 
+        // Subscription plans + feature flags are platform config the admin panel
+        // reads in every environment. Idempotent: adds any rows that are missing
+        // (so prod, which only had the Free plan, gets Pro/Business/Enterprise).
+        await SeedPlansAsync(db, logger);
+        await SeedFeaturesAsync(db, logger);
+
         if (!env.IsDevelopment())
         {
             // Production: also ensure integration settings (Kavenegar enabled/template,
@@ -43,8 +49,6 @@ public static class PlatformDataSeeder
 
         await EnsureCatalogUpgradesAsync(db, logger);
         await SeedSystemAdminAsync(db, logger);
-        await SeedPlansAsync(db, logger);
-        await SeedFeaturesAsync(db, logger);
         await SeedSettingsAsync(db, logger);
         await EnsureIntegrationSettingsAsync(db, logger);
     }
@@ -357,9 +361,6 @@ public static class PlatformDataSeeder
 
     private static async Task SeedPlansAsync(AppDbContext db, ILogger logger)
     {
-        if (await db.PlatformPlanDefinitions.AnyAsync())
-            return;
-
         var plans = new[]
         {
             new PlatformPlanDefinition
@@ -421,16 +422,18 @@ public static class PlatformDataSeeder
             }
         };
 
-        db.PlatformPlanDefinitions.AddRange(plans);
+        var existingIds = (await db.PlatformPlanDefinitions.Select(p => p.Id).ToListAsync())
+            .ToHashSet(StringComparer.Ordinal);
+        var missing = plans.Where(p => !existingIds.Contains(p.Id)).ToArray();
+        if (missing.Length == 0) return;
+
+        db.PlatformPlanDefinitions.AddRange(missing);
         await db.SaveChangesAsync();
-        logger.LogInformation("Platform seed: {Count} subscription plans", plans.Length);
+        logger.LogInformation("Platform seed: +{Count} subscription plans", missing.Length);
     }
 
     private static async Task SeedFeaturesAsync(AppDbContext db, ILogger logger)
     {
-        if (await db.PlatformFeatures.AnyAsync())
-            return;
-
         var features = new[]
         {
             F("pos", "صندوق", "POS", "core"),
@@ -456,9 +459,14 @@ public static class PlatformDataSeeder
             F("discover_profile", "پروفایل کشف", "Discover profile", "growth")
         };
 
-        db.PlatformFeatures.AddRange(features);
+        var existingIds = (await db.PlatformFeatures.Select(f => f.Id).ToListAsync())
+            .ToHashSet(StringComparer.Ordinal);
+        var missing = features.Where(f => !existingIds.Contains(f.Id)).ToArray();
+        if (missing.Length == 0) return;
+
+        db.PlatformFeatures.AddRange(missing);
         await db.SaveChangesAsync();
-        logger.LogInformation("Platform seed: {Count} feature flags", features.Length);
+        logger.LogInformation("Platform seed: +{Count} feature flags", missing.Length);
     }
 
     private static PlatformFeature F(string key, string fa, string en, string group) => new()