remove preact and create setup wizard

.project/milestones/milestone-01-foundation.md

@@ -9,7 +9,7 @@
 
 - [ ] Initialize monorepo structure
   - `apps/server/` with Go module
-  - `apps/web/` with Vite + Preact + TypeScript
+  - embedded templates and static assets under `apps/server/internal/httpserver/`
   - `packages/protocol/` with protobuf schema
   - `docs/` with existing documentation
   
@@ -53,10 +53,10 @@
   - Security headers middleware
   - MIME type detection
   
-- [ ] Initial frontend
-  - Preact app setup with Vite
-  - Basic routing (preact-iso)
-  - Hydration entry point
+- [ ] Initial browser UI
+  - Go template routes
+  - Embedded framework-free browser scripts
+  - Progressive enhancement entry points
   - CSS design system foundation
 
 ## Acceptance Criteria

.project/milestones/milestone-04-collaboration.md

@@ -12,7 +12,7 @@
   - Comment threading (parent/child)
   - Line/section anchoring (hash-based)
   - Comment resolution (mark as resolved)
-  - Comment display in Preact UI
+  - Comment display in the Go-served browser UI
   
 - [ ] Notification system
   - Notification queue in database

.project/milestones/milestone-06-production.md

@@ -9,7 +9,7 @@
 
 - [ ] Unit tests
   - Go: >80% coverage for all packages
-  - Preact: Component testing with uvu
+  - Browser behavior: integration testing for embedded scripts
   - Mock external dependencies (email, filesystem)
   
 - [ ] Integration tests