fix: map README links to actual filenames and update section READMEs

- Fix all broken links in root README (partner-channel-strategy → Ideal Customer Profile, etc.)
- Add code/ directory to repo structure tree
- Update status table: Legal ✅, MCP Server ✅ MVP
- Rewrite section READMEs with actual file inventories:
  docs/engineering/, docs/gtm/, docs/investors/, docs/legal/

docs/gtm/README.md

@@ -1,10 +1,17 @@
-# GTM Folder — geolocal.io
+# GTM — geolocal.io
 
-Partner-first go-to-market materials.
+Partner-first go-to-market strategy and collateral.
 
-- Agency/CoC outreach scripts
-- Onboarding flows & JSON pointer instructions
-- Pricing & commission structures
-- White-label & partner playbooks
+## Files
 
-All content here must align with NORTH_STAR.md.
+| File | Description |
+|------|-------------|
+| [Ideal Customer Profile](./Ideal%20Customer%20Profile.md) | Who we target: agencies, SEO consultants, CoCs |
+| [Channel Strategy](./ChannelStrategy.md) | 3-pronged distribution: agencies, vertical subdomains, SEO |
+| [Sales and Marketing](./Sales%20and%20marketing.md) | Playbook, messaging, funnel |
+| [Competitive Intelligence](./Competitive%20Intelligence.md) | Competitor mapping and positioning |
+| [Market Data & Analysis](./Market%20Data%20&%20Analysis.md) | TAM, SAM, SOM |
+| [Competitive Moats & Risks](./Competitive%20moats%20and%20risks.md) | Defensibility and threat analysis |
+| [Partner One-Pager](./Partner%20One-Pager.md) | Agency sell-sheet (ready to send) |
+
+All content here must align with [NORTH_STAR.md](../../NORTH_STAR.md).