feat: scaffold FosterFlow SvelteKit project with config

Initializes SvelteKit 2 + Svelte 5 project with adapter-node, Tailwind CSS 4,
Drizzle ORM (MySQL), Stripe, Nodemailer, and argon2 dependencies. Configures
app.html with PWA meta tags, app.css with brand color tokens, and manifest.json.

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

.gitignore

@@ -0,0 +1,27 @@
+node_modules/
+build/
+.svelte-kit/
+uploads/
+
+# Output
+.output
+.vercel
+.netlify
+.wrangler
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Env
+.env
+.env.*
+!.env.example
+!.env.test
+
+# Vite
+vite.config.js.timestamp-*
+vite.config.ts.timestamp-*
+
+# Drizzle
+drizzle/