Monorepo: Restructure sd-demo → sd-app with Dashboard + Gross-Up Calculator

Date: 2026-03-07 Status: ✅ Complete

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Summary

Renamed apps/sd-demo to apps/sd-app and evolved it from a single-page debt calculator into a multi-route mini-app hub. Added a dashboard home screen, implemented the RRSP Gross-Up calculator, moved the existing debt demo to its own route, and stubbed two future calculators.

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What Changed

Rename

• git mv apps/sd-demo apps/sd-app
• Package name: @smart-debt/sd-demo → @smart-debt/sd-app
• Manifest: “Smart Debt Demo” / “SD Demo” → “Smart Debt” / “SD App”

New Route Structure

apps/sd-app/src/routes/
  +layout.svelte     ← added nav header (SD App brand + 4 links)
  +page.svelte       ← dashboard: 4 cards (2 live, 2 coming soon)
  demo/+page.svelte  ← moved debt payoff calculator here (no logic changes)
  gross-up/+page.svelte  ← NEW: RRSP Gross-Up Calculator
  int-only/+page.svelte  ← stub: "Coming soon"
  term-loan/+page.svelte ← stub: "Coming soon"

RRSP Gross-Up Calculator

• Inputs: After-tax amount ($), Marginal tax rate (%)
• Formula: grossedUp = afterTax / (1 - taxRate / 100)
• Outputs: Grossed-up RRSP contribution, tax refund amount, plain-language explanation
• Verified: $1,000 at 50% → $2,000 contribution, $1,000 refund ✓

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Test Results

Check	Result
pnpm check (svelte-check)	0 errors, 0 warnings
pnpm build	✅ All 6 pages compiled
/ dashboard	HTTP 200
/gross-up	HTTP 200
/demo	HTTP 200
/int-only	HTTP 200
/term-loan	HTTP 200

How to Run

cd apps/sd-app
pnpm dev
# Open: http://localhost:5173

Commit

Not yet committed — pending user request.

Next Steps

• Implement Interest Only calculator (/int-only)
• Implement Term Loan calculator (/term-loan)
• Consider deployment to Cloudflare Pages