perf: move dependencies to build-time static JSON, add build benchmark

- Move getDependenciesAsync filesystem scan to scripts/dump-dependencies.mts
  (runs at build time, outputs static-data/dependencies.json)
- About page now imports dependencies.json like other static data
  (eliminates runtime glob of all package.json files)
- Delete dead getDependenciesAsync + parseDependencyCatalogsAsync from
  package-reader.ts (only getPackageVersion remains)
- Add scripts/benchmarks/build-compare.sh for dev vs branch comparison

scripts/benchmarks/build-compare.sh

@@ -0,0 +1,77 @@
+#!/usr/bin/env bash
+# Compares Next.js build output between origin/dev and the current branch.
+# Runs two full builds — expect ~5-10 minutes total.
+set -euo pipefail
+
+REPO_ROOT="$(git rev-parse --show-toplevel)"
+CURRENT_BRANCH="$(git rev-parse --abbrev-ref HEAD)"
+NEXT_DIR="$REPO_ROOT/apps/nextjs"
+OUT_DIR="$REPO_ROOT/.bench"
+mkdir -p "$OUT_DIR"
+
+capture_metrics() {
+  local label="$1" out="$OUT_DIR/$label"
+  mkdir -p "$out"
+
+  echo "=== Building $label ==="
+  cd "$REPO_ROOT"
+
+  local start_ns
+  start_ns=$(date +%s)
+  pnpm turbo build --filter=@homarr/nextjs 2>&1 | tee "$out/build.log"
+  local end_ns
+  end_ns=$(date +%s)
+  echo $((end_ns - start_ns)) > "$out/build_time_s"
+
+  # .next size
+  du -sh "$NEXT_DIR/.next" 2>/dev/null | cut -f1 > "$out/next_size"
+
+  # Standalone size
+  if [ -d "$NEXT_DIR/.next/standalone" ]; then
+    du -sh "$NEXT_DIR/.next/standalone" | cut -f1 > "$out/standalone_size"
+  else
+    echo "n/a" > "$out/standalone_size"
+  fi
+
+  # Prerendered routes
+  if [ -d "$NEXT_DIR/.next/server/app" ]; then
+    find "$NEXT_DIR/.next/server/app" -name '*.html' | wc -l | tr -d ' ' > "$out/prerendered_count"
+  else
+    echo "0" > "$out/prerendered_count"
+  fi
+
+  # Route summary from build output
+  grep -E '(○|●|λ|ƒ|◐)\s' "$out/build.log" > "$out/routes.txt" 2>/dev/null || true
+  grep -c '^○' "$out/routes.txt" 2>/dev/null > "$out/static_routes" || echo "0" > "$out/static_routes"
+  grep -c '^ƒ\|^λ\|^●\|^◐' "$out/routes.txt" 2>/dev/null > "$out/dynamic_routes" || echo "0" > "$out/dynamic_routes"
+}
+
+echo "Stashing uncommitted changes..."
+git stash --include-untracked -q 2>/dev/null || true
+
+echo ""
+echo "=== Phase 1: Build origin/dev ==="
+git checkout origin/dev --detach -q
+capture_metrics "dev"
+
+echo ""
+echo "=== Phase 2: Build $CURRENT_BRANCH ==="
+git checkout "$CURRENT_BRANCH" -q
+git stash pop -q 2>/dev/null || true
+capture_metrics "branch"
+
+echo ""
+echo "========================================"
+echo "          BUILD COMPARISON"
+echo "========================================"
+printf "%-25s %-15s %-15s\n" "Metric" "dev" "$CURRENT_BRANCH"
+printf "%-25s %-15s %-15s\n" "-------------------------" "---------------" "---------------"
+printf "%-25s %-15s %-15s\n" "Build time (s)" "$(cat "$OUT_DIR/dev/build_time_s")" "$(cat "$OUT_DIR/branch/build_time_s")"
+printf "%-25s %-15s %-15s\n" ".next size" "$(cat "$OUT_DIR/dev/next_size")" "$(cat "$OUT_DIR/branch/next_size")"
+printf "%-25s %-15s %-15s\n" "Standalone size" "$(cat "$OUT_DIR/dev/standalone_size")" "$(cat "$OUT_DIR/branch/standalone_size")"
+printf "%-25s %-15s %-15s\n" "Prerendered HTML files" "$(cat "$OUT_DIR/dev/prerendered_count")" "$(cat "$OUT_DIR/branch/prerendered_count")"
+printf "%-25s %-15s %-15s\n" "Static routes" "$(cat "$OUT_DIR/dev/static_routes")" "$(cat "$OUT_DIR/branch/static_routes")"
+printf "%-25s %-15s %-15s\n" "Dynamic routes" "$(cat "$OUT_DIR/dev/dynamic_routes")" "$(cat "$OUT_DIR/branch/dynamic_routes")"
+echo "========================================"
+echo ""
+echo "Detailed logs in $OUT_DIR/{dev,branch}/build.log"

scripts/dump-dependencies.mts

@@ -0,0 +1,49 @@
+import fsPromises from "fs/promises";
+import path from "path";
+import { fileURLToPath } from "url";
+import { glob } from "glob";
+import { parse as parseYaml } from "yaml";
+
+const currentDir = path.dirname(fileURLToPath(import.meta.url));
+const repoRoot = path.resolve(currentDir, "..");
+const outPath = path.resolve(repoRoot, "static-data", "dependencies.json");
+
+interface PackageJson {
+  dependencies?: Record<string, string>;
+}
+
+const parseCatalogAsync = async (): Promise<Map<string, string>> => {
+  try {
+    const raw = await fsPromises.readFile(path.join(repoRoot, "pnpm-workspace.yaml"), "utf-8");
+    const parsed = parseYaml(raw) as { catalog?: Record<string, string> };
+    return new Map(Object.entries(parsed.catalog ?? {}));
+  } catch {
+    return new Map();
+  }
+};
+
+const paths = await glob("**/package.json", {
+  ignore: "**/node_modules/**",
+  cwd: repoRoot,
+  absolute: true,
+});
+
+const catalog = await parseCatalogAsync();
+const merged: Record<string, string> = {};
+
+for (const p of paths) {
+  const pkg = JSON.parse(await fsPromises.readFile(p, "utf-8")) as PackageJson;
+  if (!pkg.dependencies) continue;
+  for (const [name, version] of Object.entries(pkg.dependencies)) {
+    merged[name] = catalog.get(name) ?? version;
+  }
+}
+
+const sorted = Object.fromEntries(
+  Object.entries(merged)
+    .filter(([, v]) => !v.includes("workspace:"))
+    .sort(([a], [b]) => a.localeCompare(b)),
+);
+
+await fsPromises.writeFile(outPath, JSON.stringify(sorted, null, 2) + "\n");
+console.log(`Wrote ${Object.keys(sorted).length} dependencies to ${outPath}`);