feat(landing): add Cloudflare Pages deployment setup

- Add wrangler.toml for all 5 landing pages (chat, picture, manacore, manadeck, zitare)
- Add wrangler CLI as dev dependency
- Add deploy scripts: pnpm deploy:landing:{project} and pnpm deploy:landing:all
- Add Cloudflare helper scripts: cf:login, cf:projects:list, cf:projects:create
- Document Cloudflare Pages setup in CLAUDE.md

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

apps/chat/apps/landing/wrangler.toml

@@ -0,0 +1,6 @@
+# Cloudflare Pages configuration for Chat Landing
+# Deployed via GitHub Actions (Direct Upload)
+
+name = "chat-landing"
+compatibility_date = "2024-12-01"
+pages_build_output_dir = "dist"

apps/manacore/apps/landing/wrangler.toml

@@ -0,0 +1,6 @@
+# Cloudflare Pages configuration for ManaCore Landing
+# Deployed via GitHub Actions (Direct Upload)
+
+name = "manacore-landing"
+compatibility_date = "2024-12-01"
+pages_build_output_dir = "dist"

apps/manadeck/apps/landing/wrangler.toml

@@ -0,0 +1,6 @@
+# Cloudflare Pages configuration for ManaDeck Landing
+# Deployed via GitHub Actions (Direct Upload)
+
+name = "manadeck-landing"
+compatibility_date = "2024-12-01"
+pages_build_output_dir = "dist"

apps/picture/apps/landing/wrangler.toml

@@ -0,0 +1,6 @@
+# Cloudflare Pages configuration for Picture Landing
+# Deployed via GitHub Actions (Direct Upload)
+
+name = "picture-landing"
+compatibility_date = "2024-12-01"
+pages_build_output_dir = "dist"

apps/zitare/apps/landing/wrangler.toml

@@ -0,0 +1,6 @@
+# Cloudflare Pages configuration for Zitare Landing
+# Deployed via GitHub Actions (Direct Upload)
+
+name = "zitare-landing"
+compatibility_date = "2024-12-01"
+pages_build_output_dir = "dist"