Remove many irrelevant documents

Author: bcb

docs/extensions.md

@@ -35,7 +35,7 @@ building.
 It's perfect for:
 
 - 🧱 Building SaaS apps
-- 💻 Running multiple stacks (locally and remotely)
+- 💻 Running multiple stacks
 - 📦 Easy database migrations
 - 🔧 Customizing your toolchain
 
@@ -44,17 +44,6 @@ Caddy), making it easy to develop locally or deploy remotely.
 
 ---
 
-## 🏛️ Architecture
-
-```mermaid
-flowchart TD
-    APIGateway["API Gateway (Caddy)"]
-    APIGateway --> Services["Services (PostgREST, + add more)"]
-    Services --> Database["Database (Postgres)"]
-```
-
----
-
 ## 📚 What's next?
 
 👉 [Getting Started](gettingstarted.md) – a guide to installing SuperStack and

docs/index.md

@@ -48,9 +48,4 @@ markdown_extensions:
 nav:
   - Home: index.md
   - Getting Started: gettingstarted.md
-  - Migrations: migrations.md
-  - Postgres Extensions: extensions.md
-  - Psql: psql.md
   - Deploying to Remote Environments: deploying.md
-  - Blue/Green Deployments: bluegreen.md
-  - Upgrading SuperStack: upgrading.md