fix: interactive map visuals and docker dev setup

- Removed confusing SVG lines from map

- Restored distinct clickable markers for major references

- Fixed corepack failing to install pnpm v11 in Docker by explicitly forcing v10

- Added direct port mapping 3001:3001 to bypass proxy issues

Dockerfile.dev

@@ -5,8 +5,8 @@ RUN apk add --no-cache libc6-compat python3 make g++ curl
 
 WORKDIR /app
 
-# Enable corepack for pnpm
-RUN corepack enable
+# Install pnpm v10 explicitly (corepack defaults to v11 which requires Node 22)
+RUN npm install -g pnpm@10.18.3
 
 # Pre-set the pnpm store directory
 ENV PNPM_HOME="/pnpm"