feat: convert from mdbook to Grav format

- Rename src/ to pages/
- Add Grav frontmatter to markdown files
- Create numbered folder structure
- Remove mdbook-specific files

Migration from mdbook to Grav CMS.

pages/07.marketing-sales-plan/default.md

@@ -0,0 +1,27 @@
+---
+title: 'STLP — Marketing & Sales Plan (Draft)'
+menu: 'STLP — Marketing & Sales Plan (Draft)'
+---
+
+# STLP — Marketing & Sales Plan (Draft)
+
+Week 1 (Tue–Fri) Actions
+- Google Business Profile: claim/verify STLP; add services, hours, photos.
+- Instagram/TikTok: 3 short reels of making (laser, embroidery, CNC) with CTA.
+- Nextdoor/Facebook local groups: intro post with 3 starter offers + limited slots.
+- Landing page: single page with offer menu + quote/order form.
+- Stripe: create payment links for 3 SKUs; publish on landing.
+- Outreach: compile a list of 30 local businesses (coffee shops, gyms, boutiques) for signage/decals/embroidered hats.
+
+Channels (prioritized)
+- Local SEO: Google Business Profile + consistent NAP; 5 starter reviews from friends/previous clients.
+- Social short-form: IG/TikTok reels; weekly before/after carousel.
+- Community: Nextdoor + local FB; cautious posting cadence.
+- Marketplaces: Etsy (for repeatable SKUs) — optional after week 2.
+
+Messaging (first pass)
+- “Local, fast-turnaround custom making: laser, embroidery, CNC, vinyl, photo prints, and prototype assembly.”
+- Emphasize speed, local pickup, and small MOQs.
+
+KPIs (weekly)
+- Inquiries/leads, orders, revenue, average order value.