feat: add SteamGridDB proxy API for non-Steam game images

lib/api/index.ts

@@ -14,3 +14,4 @@ export { contactRoutes } from "./contact"
 export { adminReportRoutes } from "./admin-reports"
 export { adminPerformanceRoutes } from "./admin-performance"
 export { adminCommentRoutes } from "./admin-comments"
+export { steamgridProxyRoutes } from "./steamgrid-proxy"

lib/api/steamgrid-proxy.ts

@@ -0,0 +1,80 @@
+import { Elysia, t } from "elysia"
+
+const STEAMGRIDDB_BASE = "https://www.steamgriddb.com/api/v2"
+
+export const steamgridProxyRoutes = new Elysia({ prefix: "/steamgrid" })
+  .get(
+    "/search",
+    async ({ query, set }) => {
+      const apiKey = process.env.STEAMGRIDDB_API_KEY
+      if (!apiKey) {
+        set.status = 503
+        return { error: "SteamGridDB API key not configured" }
+      }
+
+      try {
+        const res = await fetch(
+          `${STEAMGRIDDB_BASE}/search/autocomplete/${encodeURIComponent(query.q)}`,
+          {
+            headers: { Authorization: `Bearer ${apiKey}` },
+          }
+        )
+
+        if (!res.ok) {
+          set.status = res.status
+          return { error: "SteamGridDB search failed" }
+        }
+
+        const data = await res.json()
+        return data
+      } catch (err) {
+        console.error("SteamGridDB search error:", err)
+        set.status = 500
+        return { error: "SteamGridDB search failed" }
+      }
+    },
+    {
+      query: t.Object({ q: t.String({ minLength: 2 }) }),
+    }
+  )
+  .get(
+    "/grids/:gameId",
+    async ({ params, query, set }) => {
+      const apiKey = process.env.STEAMGRIDDB_API_KEY
+      if (!apiKey) {
+        set.status = 503
+        return { error: "SteamGridDB API key not configured" }
+      }
+
+      try {
+        const url = new URL(`${STEAMGRIDDB_BASE}/grids/game/${params.gameId}`)
+        // Add dimensions filter for capsule-style images
+        url.searchParams.set("dimensions", "600x900,342x482")
+        if (query.styles) {
+          url.searchParams.set("styles", query.styles)
+        }
+
+        const res = await fetch(url.toString(), {
+          headers: { Authorization: `Bearer ${apiKey}` },
+        })
+
+        if (!res.ok) {
+          set.status = res.status
+          return { error: "SteamGridDB grids fetch failed" }
+        }
+
+        const data = await res.json()
+        return data
+      } catch (err) {
+        console.error("SteamGridDB grids fetch error:", err)
+        set.status = 500
+        return { error: "SteamGridDB grids fetch failed" }
+      }
+    },
+    {
+      params: t.Object({ gameId: t.String() }),
+      query: t.Object({
+        styles: t.Optional(t.String()),
+      }),
+    }
+  )