Simplify hero backgrounds and add entrance animations

- Replace animated blob/wave/noise backdrop with clean static gradient
  (radial ellipse highlights + linear fade) in hero-motion-backdrop
- Remove all framer-motion from background layer; delete unused CSS
  classes: hero-blob, hero-sheet-glow, hero-sheet-wave, hero-sheet-noise,
  hero-title-shift keyframe, and responsive blob media queries
- Add framer-motion stagger entrance to HeroContentMotion, HeroMotionItem,
  and HeroTitle (slide-up + fade on mount)
- Refactor coming-soon page to use HeroContentMotion/HeroMotionItem
  instead of MotionFade (whileInView unreliable above the fold)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/portfolio.ts

@@ -6,6 +6,8 @@ import type {
   PortfolioSection,
 } from "@prisma/client";
 
+import { cache } from "react";
+
 import { getPortfolioMediaBindings } from "@/lib/media";
 import type { AppLocale } from "@/lib/locale";
 import { prisma } from "@/lib/prisma";
@@ -329,7 +331,7 @@ export async function getPublishedPortfolioProjects(filters?: { categorySlug?: s
   return projects.map((project) => mapProject(project));
 }
 
-export async function getPublishedPortfolioProjectBySlug(slug: string) {
+export const getPublishedPortfolioProjectBySlug = cache(async function (slug: string) {
   const project = await prisma.portfolioProject.findFirst({
     where: {
       slug,
@@ -350,7 +352,7 @@ export async function getPublishedPortfolioProjectBySlug(slug: string) {
   });
 
   return project ? mapProject(project) : null;
-}
+});
 
 export async function getAdminPortfolioProjectById(id: string) {
   const project = await prisma.portfolioProject.findUnique({