Sprint 46: Add achievements gallery

[KevinBigham]

Summary

• Adds a franchise achievements gallery route backed by the existing engine achievement catalog.
• Adds medal SVG variants for bronze, silver, gold, and locked states using existing design tokens and lucide lock overlay.
• Covers filtering, sorting-adjacent state, counter, locked empty state, medal rendering, and additive route registration with renderToStaticMarkup tests.

Save schema impact

None. SAVE_VERSION remains 35; no engine/save/migration/fixture files changed.

How to test

• NODE_OPTIONS=--no-experimental-webstorage npx --yes pnpm@9.15.9 -r typecheck
• NODE_OPTIONS=--no-experimental-webstorage npx --yes pnpm@9.15.9 test
• NODE_OPTIONS=--no-experimental-webstorage npx --yes pnpm@9.15.9 --filter @mfd/web build
• bash scripts/check-bundle-size.sh
• bash scripts/check-math-random.sh

Look for all commands to pass, index gzip below 181 KB, engine bundle gate unchanged at 257 KB, and no Math.random violations.

Risks / handoff for Claude Code

• Category chips mirror the actual engine AchievementCategory values on origin/main: dynasty, roster, draft, financial, coaching, narrative, records, milestones, hidden.
• Route registration is additive in App.tsx via a new lazy route and post-routeTree addChildren call.
• No selector gap: selectAchievements already exists and is consumed directly.
• No packages/engine changes.

[chatgpt-codex-connector]

You have reached your Codex usage limits for code reviews. You can see your limits in the Codex usage dashboard.
To continue using code reviews, add credits to your account and enable them for code reviews in your settings.