fix: speed up docs build by switching to static output (#890)

* fix(web): switch docs site from SSR to static build

Remove unnecessary server-side rendering setup that was slowing down
Cloudflare Pages builds. The docs site doesn't need SSR — static output
builds in ~20s vs timing out with the Cloudflare adapter.

- Remove @astrojs/cloudflare adapter and output: 'server'
- Remove unused sharp dependency (imageService was already 'passthrough')
- Custom 404 page continues to work via static 404.html

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix(core): make claude-agent-sdk an optional peer dependency

Move @anthropic-ai/claude-agent-sdk from dependencies to optional
peerDependencies, matching the pattern used by pi-coding-agent.
Add local type declaration so typecheck passes without the package
installed. The SDK is already lazy-loaded at runtime.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* chore: update lockfile after removing unused dependencies

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix(web): use noop image service after removing sharp

Astro's default image service requires sharp. Since we removed it,
configure the noop service to pass images through without processing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: christso

apps/web/astro.config.mjs

@@ -1,11 +1,9 @@
-import cloudflare from '@astrojs/cloudflare';
 import starlight from '@astrojs/starlight';
 import { defineConfig } from 'astro/config';
 
 export default defineConfig({
   site: 'https://agentv.dev',
-  output: 'server',
-  adapter: cloudflare({ imageService: 'passthrough' }),
+  image: { service: { entrypoint: 'astro/assets/services/noop' } },
   integrations: [
     starlight({
       title: 'agent v',

apps/web/package.json

@@ -9,8 +9,6 @@
   },
   "dependencies": {
     "astro": "^5.7.0",
-    "@astrojs/starlight": "^0.34.0",
-    "@astrojs/cloudflare": "^12.0.0",
-    "sharp": "^0.33.0"
+    "@astrojs/starlight": "^0.34.0"
   }
 }