Add an admin page for managing gallery images and artist names

Introduce a new admin route at `/admin/gallery` enabling users to set focal points and artist names for gallery images, with corresponding API endpoints and data management.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 23852c00-4779-460a-9e0c-d09fee4b6c92
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 70b6b9df-7da9-46f3-afd7-dbcd9aac1855
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/f209e72a-0939-48fa-84fc-57854de71967/23852c00-4779-460a-9e0c-d09fee4b6c92/ncMMRQ9
Replit-Helium-Checkpoint-Created: true

server/gallery-artist-overrides.json

@@ -0,0 +1 @@
+{}

server/gallery-focal-points.json

@@ -0,0 +1,6 @@
+{
+  "DSC07135.jpg": {
+    "x": 50,
+    "y": 30
+  }
+}

server/routes.ts

@@ -362,6 +362,92 @@ export async function registerRoutes(
     }
   });
 
+  app.get("/api/gallery/focal-points", (_req, res) => {
+    try {
+      const fpPath = path.join(process.cwd(), "server/gallery-focal-points.json");
+      if (fs.existsSync(fpPath)) {
+        res.json(JSON.parse(fs.readFileSync(fpPath, "utf-8")));
+      } else {
+        res.json({});
+      }
+    } catch {
+      res.json({});
+    }
+  });
+
+  app.put("/api/gallery/focal-points/:fileName", (req, res) => {
+    try {
+      const { fileName } = req.params;
+      const { x, y } = req.body;
+      if (typeof x !== "number" || typeof y !== "number") {
+        return res.status(400).json({ message: "x and y must be numbers (0-100)" });
+      }
+      const fpPath = path.join(process.cwd(), "server/gallery-focal-points.json");
+      let data: Record<string, { x: number; y: number }> = {};
+      if (fs.existsSync(fpPath)) {
+        data = JSON.parse(fs.readFileSync(fpPath, "utf-8"));
+      }
+      data[fileName] = { x: Math.round(x), y: Math.round(y) };
+      fs.writeFileSync(fpPath, JSON.stringify(data, null, 2));
+      res.json({ ok: true, fileName, x: data[fileName].x, y: data[fileName].y });
+    } catch (err: any) {
+      res.status(500).json({ message: err.message });
+    }
+  });
+
+  app.delete("/api/gallery/focal-points/:fileName", (req, res) => {
+    try {
+      const { fileName } = req.params;
+      const fpPath = path.join(process.cwd(), "server/gallery-focal-points.json");
+      let data: Record<string, { x: number; y: number }> = {};
+      if (fs.existsSync(fpPath)) {
+        data = JSON.parse(fs.readFileSync(fpPath, "utf-8"));
+      }
+      delete data[fileName];
+      fs.writeFileSync(fpPath, JSON.stringify(data, null, 2));
+      res.json({ ok: true });
+    } catch (err: any) {
+      res.status(500).json({ message: err.message });
+    }
+  });
+
+  app.get("/api/gallery/artists", (_req, res) => {
+    try {
+      const aPath = path.join(process.cwd(), "server/gallery-artist-overrides.json");
+      if (fs.existsSync(aPath)) {
+        res.json(JSON.parse(fs.readFileSync(aPath, "utf-8")));
+      } else {
+        res.json({});
+      }
+    } catch {
+      res.json({});
+    }
+  });
+
+  app.put("/api/gallery/artists/:fileName", (req, res) => {
+    try {
+      const { fileName } = req.params;
+      const { artist } = req.body;
+      if (typeof artist !== "string") {
+        return res.status(400).json({ message: "artist must be a string" });
+      }
+      const aPath = path.join(process.cwd(), "server/gallery-artist-overrides.json");
+      let data: Record<string, string> = {};
+      if (fs.existsSync(aPath)) {
+        data = JSON.parse(fs.readFileSync(aPath, "utf-8"));
+      }
+      if (artist.trim() === "") {
+        delete data[fileName];
+      } else {
+        data[fileName] = artist.trim();
+      }
+      fs.writeFileSync(aPath, JSON.stringify(data, null, 2));
+      res.json({ ok: true, fileName, artist: artist.trim() });
+    } catch (err: any) {
+      res.status(500).json({ message: err.message });
+    }
+  });
+
   // Gallery API - serves optimized photos from Dropbox/Cloudinary
   app.get("/api/gallery", async (req, res) => {
     try {
@@ -376,6 +462,18 @@ export async function registerRoutes(
         data = JSON.parse(fs.readFileSync(galleryPath, "utf-8"));
       }
 
+      const aPath = path.join(process.cwd(), "server/gallery-artist-overrides.json");
+      let artistOverrides: Record<string, string> = {};
+      if (fs.existsSync(aPath)) {
+        artistOverrides = JSON.parse(fs.readFileSync(aPath, "utf-8"));
+      }
+      data = data.map((img: any) => {
+        if (artistOverrides[img.fileName]) {
+          return { ...img, artist: artistOverrides[img.fileName] };
+        }
+        return img;
+      });
+
       const shuffled = [...data];
       for (let i = shuffled.length - 1; i > 0; i--) {
         const j = Math.floor(Math.random() * (i + 1));