feat: testing mode banner + snapshot storage fields fix

src/widgets/SightTabs/RightWidgetTab/SightFramePreview.tsx

@@ -33,6 +33,7 @@ interface SightFramePreviewProps {
   previewMedia: PreviewMediaData | null;
   articles: Article[];
   onArticleSelect: (index: number) => void;
+  previewFontSize?: number;
 }
 
 // Matches SightFrame.jsx renderCurrentMedia — same structure, same CSS classes
@@ -151,6 +152,7 @@ export function SightFramePreview({
   previewMedia,
   articles,
   onArticleSelect,
+  previewFontSize,
 }: SightFramePreviewProps) {
   const token = localStorage.getItem("token") ?? "";
 
@@ -235,7 +237,12 @@ export function SightFramePreview({
         {/* title: intro-title (300px, 40px centered) or regular (24px with border) */}
         <div
           className={`sfp-sight-frame-title${isIntro ? " sfp-intro-title" : ""}`}
-          style={{ lineHeight: isIntro ? undefined : titleLineHeight }}
+          style={{
+            lineHeight: isIntro ? undefined : titleLineHeight,
+            ...(isIntro && previewFontSize != null
+              ? { fontSize: `${previewFontSize}px` }
+              : {}),
+          }}
         >
           <p
             style={{

src/widgets/SightTabs/RightWidgetTab/index.tsx

@@ -5,6 +5,8 @@ import {
   Menu,
   MenuItem,
   TextField,
+  Slider,
+  Stack,
 } from "@mui/material";
 import {
   authInstance,
@@ -45,6 +47,7 @@ export const RightWidgetTab = observer(
       updateRightArticleInfo,
       getRightArticles,
       updateSight,
+      updateSightInfo,
       unlinkPreviewMedia,
       linkPreviewMedia,
       unlinkRightArticle,
@@ -454,7 +457,40 @@ export const RightWidgetTab = observer(
               </Box>
             </Box>
 
-            <Box sx={{ flexShrink: 0, width: "550px" }}>
+            <Box sx={{ flexShrink: 0, width: "550px", display: "flex", flexDirection: "column", gap: 1 }}>
+              <Stack direction="row" spacing={2} alignItems="center">
+                <TextField
+                  type="number"
+                  label="Размер шрифта превью (px)"
+                  size="small"
+                  value={sight.common.preview_font_size ?? ""}
+                  onChange={(e) => {
+                    const raw = e.target.value;
+                    if (raw === "") {
+                      updateSightInfo(language, { preview_font_size: undefined }, true);
+                      return;
+                    }
+                    const val = Math.max(1, Math.min(300, Math.round(Number(raw))));
+                    if (Number.isFinite(val)) {
+                      updateSightInfo(language, { preview_font_size: val }, true);
+                    }
+                  }}
+                  slotProps={{ input: { min: 1, max: 300 } }}
+                  sx={{ width: "200px" }}
+                />
+                <Slider
+                  value={sight.common.preview_font_size ?? 40}
+                  min={1}
+                  max={300}
+                  step={1}
+                  onChange={(_, newValue) => {
+                    if (typeof newValue === "number") {
+                      updateSightInfo(language, { preview_font_size: newValue }, true);
+                    }
+                  }}
+                  sx={{ flexGrow: 1 }}
+                />
+              </Stack>
               <SightFramePreview
                 sightName={sight[language].name}
                 previewMedia={previewMedia}
@@ -463,6 +499,7 @@ export const RightWidgetTab = observer(
                   handleSelectArticle(idx);
                   setType("article");
                 }}
+                previewFontSize={sight.common.preview_font_size}
               />
             </Box>
           </Box>