Add GitHub Actions workflows and optimize build performance

- Add release.yml for multi-platform binary builds (Linux, macOS, Windows)
- Add gh-pages-fast.yml for fast deployment using pre-built binaries
- Add build-binary.yml for standalone binary artifact creation
- Optimize Cargo.toml with build profiles and reduced tokio features
- Remove 26MB of unused Font Awesome assets (kept only essential files)
- Font Awesome reduced from 28MB to 1.2MB

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

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

.claude/settings.local.json

@@ -39,7 +39,10 @@
       "Bash(zsh run.zsh:*)",
       "Bash(hugo:*)",
       "WebFetch(domain:docs.bsky.app)",
-      "WebFetch(domain:syui.ai)"
+      "WebFetch(domain:syui.ai)",
+      "Bash(rustup target list:*)",
+      "Bash(rustup target:*)",
+      "Bash(git add:*)"
     ],
     "deny": []
   }