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/04.questions/default.md

@@ -0,0 +1,44 @@
+---
+title: 'STLP — Questions (answer inline)'
+menu: 'STLP — Questions (answer inline)'
+---
+
+# STLP — Questions (answer inline)
+
+Positioning
+- One-liner (for whom, outcome):
+- Primary customer segments (top 3):
+- Local vs online split (percent):
+
+Services and Capacity
+- Machines/models and safe working areas (e.g., Glowforge bed size):
+- Materials you can stock vs BYO from customers:
+- Standard services (check): laser cutting/engraving, CNC routing, vinyl decals, signage, embroidery, sewing/alterations, photo prints, prototyping/PCB reflow, custom gifts, kits.
+- Daily capacity (Tue–Fri): hours on-tool vs prep/admin:
+- Typical turnaround times (rush options?):
+
+Pricing
+- Baseline approach: time + machine rate, or flat menu pricing?
+- Starting machine rates (laser, CNC, embroidery, reflow):
+- Minimum order values per service:
+- Discounts for larger batches or nonprofits/schools?
+
+Operations
+- Order intake: prefer form + file upload, or quote-first?
+- Payment: Stripe links, Square, cash, invoice on pickup?
+- Delivery: local pickup by appointment, shipping (USPS/UPS), delivery radius?
+- Home business constraints (noise/hours/parking):
+
+Brand and Portfolio
+- Domain to use now (for MVP site):
+- Socials to activate first (IG, TikTok, FB/Nextdoor, YouTube):
+- Portfolio photos/videos ready? Where stored?
+
+Risk/Compliance
+- Safety/ventilation clear for laser/CNC? Any materials you will NOT cut?
+- Embroidery/sewing: any brand/IP restrictions?
+- PCB/reflow: ESD procedures and disclaimers (prototype-only, no certification)?
+
+Targets
+- First 2 Fridays cash goal ($):
+- Weekly KPI targets (leads, demos/consults, orders):